Bt Cotton Hybrids Evaluation Report – South Zone

1 

Evaluation of Bt Cotton Hybrids 

Report submitted to 

Indian Council of Agricultural Research 

New Delhi 

Submitted by 

Project Coordinator (Cotton Improvement) 

All India Coordinated Cotton Improvement Project 

Central Institute for Cotton Research 

Regional Station, Coimbatore 641003 

May, 2008 

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PARTICULARS Page No. 

Executive Summary 3 

Summary Tables 5 

Bt cotton hybrids evaluation report (South Zone 2007-08) 12 

First Year Trial (Intra-hirsutum hybrids) – Set ‘A’ 15 

First Year Trial (Intra-hirsutum hybrids) – Set ‘B’ 41 

Combined report of intra-hirsutum hybrids (2006-07 & 2007-08) 78 

Evaluation of interspecific (G. hirsutum x G. barbadense) 

hybrids 

Combined report of inter specific hybrids (2006-07 & 2007-08) 108 

2 

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66 

90 

100

3 

% & ' ( & ) ) * 

!" #$ 

The All India Coordinated Cotton Improvement Project of the Indian Council of 

Agricultural Research was assigned the task of evaluating the performance of Bt cotton 

hybrids in South Zone during 2007-08. 

In the first year intra-hirsutum hybrid trial, two sets of trials viz., Trial Set ‘A’ consisting 

of 23 Bt test hybrids and three check hybrids (one Bt check hybrid (RCH 2 Bt), non Bt 

check hybrid (Bunny) and local non Bt check hybrid) and another Trial Set ‘B’ consisting 

of 23 Bt test hybrids and same set of check hybrids were conducted. 

Both the sets of trials were carried out at 11 locations of South Zone with six under 

irrigated conditions and five under rainfed situations. The irrigated locations were: 

Warangal (Andhra Pradesh), Raichur, Siruguppa and Beemarayangudi (Karnataka) and 

Coimbatore and Srivilliputhur (Tamil Nadu) and the rainfed locations were Lam 

(Guntur), Nandyal, Adilabad (Andhra Pradesh), Dharwad (Karnataka) and Aruppukottai 

(Tamil Nadu). 

Intra Hirsutum Bt Cotton Evaluation Trial (First Year) 

The performance of Bt cotton hybrids that were evaluated during the first year (2007-08) 

under Trial Set ‘A’ and Trial Set ‘B’ are summarized below; 

Trial Set ‘A’ 

Under irrigated conditions, twelve test Bt hybrids registered higher seed cotton yield 

compared to Bt check hybrid RCH 2 Bt (2157 kg/ha) with enhanced seed cotton yield 

ranging from 3 to 17 %. Under rainfed situations, barring KCH 707 BG II, VBCH 1505 

BG II, VBCH 1506 BG II and SBCH 292, 19 test Bt hybrids established yield superiority 

over RCH 2 Bt check hybrid with the increase being 4 to 26 %. However, five test 

hybrids were seen yielding higher as against local check hybrid under rainfed condition. 

The details are annexed in Summary Table for irrigated and rainfed situations. 

Trial Set ‘B’ 

In this trial, 23 Bt cotton hybrids were evaluated with three check hybrids. As compared 

to Bt check hybrid, 19 test hybrids registered higher seed cotton yield with the increase 

being to the tune of 5 to 32 % under irrigated conditions. Eighteen test Bt hybrids 

exhibited higher seed cotton yield compared to Bt check hybrid with the increase being 

1 to 24 % under rainfed situations. Here again, like seen in trial set-A, six test hybrids 

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4 

exhibited higher seed cotton yield compared to local check hybrid under rainfed 

condition. The details are furnished in attached Summary Table. Most of the test hybrids 

possessed fibre strength of 20 to 22 g/tex with the strength to length ratio being around 

0.7 to 0.8. 

All the Bt test hybrids evaluated in Trial Set ‘A’ and Trial Set ‘B’ revealed more or less 

equal reaction to sucking pests like jassids, thrips and aphids as that of check hybrids. 

Similarly, the noticeable locule damage was observed among all the test and check 

hybrids, both under rainfed and irrigated situations. 

Two Year Evaluation of Intra Hirsutum Bt Cotton Hybrids (2006-07 & 2007 - 08) 

In continuation to previous year (2006-07) trial evaluation of intra-hirsutum Bt cotton 

hybrids, second year evaluation of hybrids (submitted for AICCIP evaluation) was 

carried out. The hybrids submitted were evaluated as per standard procedures adopted 

for evaluation of test hybrids in earlier years like inclusion of Bt, non Bt and local check 

hybrids, ETL based plant protection, entomological and pathological observations. 

As compared to RCH 2 Bt check hybrid (2244 kg/ha), six test Bt hybrids like Brahma 

BG II, Ankur Jai Bt, BCHH 322-2 BG II, Tulasi 9 BG II, Akka BG II, KDCHH 441 

BG II registered higher seed cotton yield under irrigated conditions with the yield 

increase being of the order of 4 to 12 %. Under rainfed conditions, except NCEH 13 Bt 

(FG), all test hybrids recorded higher mean seed cotton yield with the increase being 

0.4 to 16.7 % over Bt check hybrid RCH 2 Bt. 

Inter Specific H X B Bt Cotton Evaluation Trial (First Year) 

Nine interspecific Bt cotton hybrids were evaluated under irrigated situations in four 

locations with MRC 6918 as Bt check hybrid and DCH 32 as non Bt check hybrid. 

Of the nine hybrids evaluated, seven were found superior to the Bt check hybrid in terms 

of seed cotton yield with the superiority being 2 to 31 %. The fibre quality attributes 

were seen to be more or less equivalent to that of Bt check hybrid. 

Two Years Evaluation of Inter Specific Bt Cotton Hybrids (2006-07 & 2007 - 08) 

Five interspecific hybrids (G. hirsutum x G. barbadense) were evaluated for two 

consecutive years in South Zone. As compared to Bt check hybrid, test hybrids viz., 

MRC 7918 BG II, MRC 7929 BG II, NCHB 945 Bt, NCHB 940 Bt registered higher 

seed cotton yield ranging from 2018 to 2493 kg/ha as against 1843 kg/ha by check Bt 

hybrid MRC 6918 Bt. There was not much variation in fibre quality attributes among test 

and check hybrids but NCHB 945 Bt and NCHB 940 Bt being found marginally inferior 

in fibre length; all the test hybrids had S / L ratio around 0.7. All the test hybrids 

exhibited more or less similar insect pest reaction like that of Bt check hybrid. 

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Entry 

5 

SUMMARY TABLE – TRIAL SET ‘A’ UNDER ETL BASED PROTECTION IN IRRIGATED CONDITION 

Mean 

Seed 

Cotton 

Yield 

(kg/ha) - 

Irrigated 

% Inc. 

over RCH 

2 Bt 

Mean 

Lint 

Yield 

(kg/ha) - 

Irrigated 

Mean 

boll 

weight 

(g) 

Mean 

Ginning 

Out Turn 

(%) 

2.5% 

span 

length 

(mm) 

Micronaire 

value 

Strength 

(g/tex) 

340 – 2 Bt 2521 17 918 5.3 33.1 32.5 4.3 22.2 0.68 5.5 2.4 9.3 6.0 0.0 0.0 0.6 6.5 5.3 

JK-Indra Bt 2420 12 951 6.2 34.8 31.7 4.4 22.9 0.72 3.7 2.9 6.6 5.3 1.7 0.7 0.6 4.9 5.6 

NSPL-405 BG II 2417 12 967 5.6 34.5 32.0 4.2 21.9 0.68 5.3 2.6 6.9 11.3 0.0 0.0 0.2 4.5 6.2 

NCS 854 Bt2 2355 9 921 5.7 34.7 32.2 4.4 22.0 0.68 4.4 1.6 8.1 5.0 0.0 0.0 0.1 6.6 6.7 

ANKUR-5642 BGII 2351 9 847 4.8 32.3 33.4 4.2 23.3 0.70 3.9 2.6 5.8 8.5 0.4 0.2 0.1 4.9 5.6 

Tulasi 7 BGII 2301 7 872 5.4 34.3 31.8 4.5 21.8 0.69 4.8 2.3 7.3 10.4 0.3 0.0 0.3 5.6 7.4 

ACH 177-2 2273 5 869 5.5 34.3 30.4 4.3 21.4 0.70 4.2 2.3 5.0 8.7 0.0 0.0 0.7 4.7 5.7 

VICH 5 Bt 2271 5 866 6.4 33.9 31.5 4.3 21.9 0.69 5.6 2.9 7.8 9.5 0.0 0.0 0.1 4.5 6.1 

ABCH-1065 2266 5 915 4.9 36.2 29.5 4.1 22.2 0.75 5.1 2.9 6.4 5.8 0.0 0.0 0.0 5.6 6.4 

VBCH-1505 BG II 2257 5 996 5.6 38.3 28.1 4.8 20.9 0.74 6.2 1.4 7.3 5.9 0.0 0.0 0.0 3.1 6.3 

UPLHH-5 Bt 2248 4 860 4.6 33.7 28.4 3.8 21.8 0.77 3.9 2.2 9.6 8.1 0.0 0.0 0.5 5.1 5.7 

PCH 2270 Bt 2 2227 3 885 5.5 35.3 31.8 4.3 22.2 0.70 4.5 2.4 8.8 7.8 1.0 0.3 0.4 5.4 4.3 

GK-217 BG II 2161 0 831 5.5 34.0 31.8 4.4 21.7 0.68 4.8 2.3 6.0 8.5 0.0 0.0 0.0 6.7 5.6 

RCH 2 Bt (Bt check) 2157 0 873 5.3 36.1 31.2 4.6 21.8 0.70 5.6 2.8 4.4 6.2 0.0 0.0 0.3 3.3 3.6 

NAMCOT-612 BG II 2118 -2 857 5.5 35.6 29.5 4.2 21.0 0.71 4.6 3.2 6.5 6.0 0.0 0.0 0.0 5.9 6.5 

NCEH-34 2112 -2 830 5.7 35.5 32.0 4.3 21.4 0.67 3.8 2.2 9.4 6.7 0.0 0.0 0.1 5.0 5.9 

Monsoon Bt 2111 -2 846 5.6 35.9 33.3 4.3 23.1 0.69 5.4 2.6 6.2 6.3 0.0 0.0 0.9 2.8 7.2 

VCH-603 BG II 2108 -2 904 5.7 38.1 28.5 4.3 19.8 0.69 4.8 2.3 5.1 6.6 0.0 0.0 0.0 4.5 6.0 

PRCH 505 BG II 2091 -3 798 5.9 34.3 33.5 4.2 22.2 0.66 5.4 2.2 5.6 9.0 0.0 0.0 0.1 6.3 6.9 

SBCH 292 2084 -3 876 4.8 37.0 26.2 4.5 20.9 0.80 5.1 2.9 9.8 8.6 0.0 0.0 0.1 6.2 4.0 

SP 504 B2 (Dhanno) 2056 -5 861 5.8 37.5 31.6 4.3 21.5 0.68 4.9 1.9 5.7 6.0 0.0 0.0 0.1 3.1 6.0 

ZCH-50072 2003 -7 794 5.7 35.0 30.9 4.3 21.0 0.68 3.7 1.6 6.9 6.6 2.5 0.8 0.0 6.4 5.9 

KCH-707 BG II 1780 -17 722 5.4 35.4 30.6 4.4 21.5 0.70 4.7 1.7 10.0 9.3 0.9 0.2 0.0 5.2 7.2 

LC (Hybrid Check) 1778 -18 718 5.1 38.0 29.3 4.6 21.9 0.75 7.1 2.6 8.0 9.0 0.0 0.0 6.3 4.5 10.3 

Bunny (Non-Bt check) 1707 -21 625 5.3 33.3 33.3 4.3 23.5 0.71 4.8 1.6 6.3 6.6 0.8 0.3 3.5 8.9 7.1 

VBCH-1506 BGII 1428 -34 577 5.9 35.0 31.7 4.3 21.7 0.68 6.4 2.3 8.8 9.7 0.0 0.0 1.0 4.8 3.5 

5 

BS /SL 

Ratio 

Jassid/ 

plant 

Whitefly/ 

plant 

Thrips/ 

plant 

Aphid/ 

plant 

!" # 

Damage 

in green 

bolls (%) 

Larvae / 

20 green 

bolls 

% square 

damage 

by 

Bollwor 

ms 

Open 

boll 

damage 

(%) 

Locule 

damage 

(%)

Entry 

6 

SUMMARY TABLE – TRIAL SET ‘A’ UNDER ETL BASED PROTECTION IN RAINFED CONDITION 

Mean Seed 

Cotton Yield 

(kg/ha) - 

Irrigated 

% Inc. 

over RCH 


Mean Lint 

Yield 

(kg/ha) - 

Irrigated 

Mean 

boll 

weight 

(g) 

Mean 

Ginning 

Out Turn 

(%) 

2.5% 

span 

length 

(mm) 

Micronai 

re value 

Strength 

(g/tex) 

GK-217 BG II 2359 26 811 4.9 34.5 30.6 4.5 21.7 0.71 1.5 0.9 9.0 4.3 0.0 0.0 3.6 0.0 5.0 


Tulasi 7 BGII 2285 23 776 4.6 33.9 29.8 4.4 23.0 0.77 2.7 0.6 5.6 5.1 0.0 0.0 2.7 0.0 2.9 

ACH 177-2 2248 21 789 4.4 35.1 28.2 4.2 21.9 0.78 2.0 1.0 4.7 1.8 0.0 0.0 0.4 0.0 6.3 


LC (Hybrid Check) 2157 16 752 4.5 34.7 29.9 4.4 21.5 0.72 2.8 0.5 4.3 2.0 0.0 0.0 1.6 0.0 8.7 

JK-Indra Bt 2134 14 735 5.2 34.5 30.7 4.1 22.7 0.74 2.2 0.1 2.5 1.5 0.0 0.0 2.4 0.0 5.5 

ABCH-1065 2129 14 759 4.8 35.3 27.3 3.9 22.9 0.84 2.6 0.6 7.5 1.8 0.0 0.0 3.0 0.0 5.4 


NSPL-405 BG II 2083 12 727 4.6 34.9 30.6 4.1 22.6 0.74 2.7 0.7 5.2 1.7 0.0 0.0 2.0 0.0 7.7 

ANKUR-5642 BGII 2060 10 695 4.6 33.5 31.9 4.0 23.0 0.72 2.3 1.1 5.8 1.8 0.0 0.0 2.7 0.0 4.0 

NCS 854 Bt2 2058 10 706 5.1 34.4 29.3 3.9 22.7 0.77 2.7 1.5 6.0 3.5 0.0 0.0 4.0 0.0 6.7 

PRCH 505 BG II 2054 10 727 5.0 35.3 30.7 4.3 22.5 0.73 2.5 0.9 6.0 3.8 0.0 0.0 1.6 0.0 3.6 

SP 504 B2 (Dhanno) 2040 9 726 5.1 35.6 30.6 4.2 22.2 0.72 2.3 0.6 3.1 3.0 0.0 0.0 1.7 0.0 5.5 

Monsoon Bt 2034 9 707 4.9 34.6 30.5 4.3 22.7 0.75 2.7 1.2 7.8 2.1 0.0 0.0 4.1 0.0 10.4 

ZCH-50072 2027 9 739 4.8 36.5 29.2 4.3 21.6 0.74 2.4 1.4 6.0 1.9 0.0 0.0 1.5 0.0 2.8 

NAMCOT-612 BG II 1967 5 697 4.6 35.3 28.0 4.0 21.0 0.75 2.7 0.6 6.1 1.4 0.0 0.0 1.3 0.0 5.7 

NCEH-34 1959 5 691 4.6 35.3 30.9 3.9 22.7 0.73 2.7 0.2 5.4 1.7 0.0 0.0 2.1 0.0 9.3 


VCH-603 BG II 1932 4 685 4.9 36.3 27.9 4.2 22.0 0.79 3.4 0.7 5.0 1.5 0.0 0.0 5.9 0.0 2.8 

SBCH 292 1866 0 671 4.3 35.4 26.1 4.4 21.8 0.83 3.3 0.5 5.2 1.0 0.0 0.0 2.1 0.0 8.2 



KCH-707 BG II 1772 -5 654 4.7 34.2 29.2 4.4 21.5 0.74 2.2 0.6 4.9 4.8 0.0 0.0 4.2 0.0 5.4 

VBCH-1505 BG II 1749 -6 631 4.8 35.3 26.0 3.9 22.4 0.86 2.6 1.4 5.7 1.1 0.0 0.0 4.6 0.0 7.7 

VBCH-1506 BGII 1487 -20 519 4.7 34.2 28.5 3.9 22.2 0.78 5.6 0.7 3.7 2.1 0.0 0.0 2.8 0.0 2.8 

6 

BS / SL 

Ratio 

Jassid/ 

plant 

Whitefly/ 

plant 

Thrips/ 

plant 

Aphid/ 

plant 

!" # 

Damage 

in green 

bolls (%) 

Larvae / 

20 green 

bolls 

% square 

damage 

by 

Bollwor 

ms 

Open 

boll 

damage 

(%) 

Locule 

damage 

(%)

Entry 

7 

SUMMARY TABLE – TRIAL SET ‘B’ UNDER ETL BASED PROTECTION IN IRRIGATED CONDITION 

Mean 

Seed 


Yield 

(kg/ha) - 

Irrigated 

% Inc. 

over RCH 


Mean 

Lint 

Yield 

(kg/ha) - 

Irrigated 

Mean 

boll 

weight 

(g) 

Mean 

Ginning 

Out Turn 

(%) 

2.5% 

span 

length 

(mm) 

Micronai 

re value 

Strength 

(g/tex) 

ACH 155-2 2752 32 1075 5.2 36.3 29.0 4.2 21.6 0.74 3.2 2.5 8.8 8.0 0.0 0.0 0.0 1.6 3.6 


JKCH-2245 Bt 2638 27 1004 5.1 36.0 31.5 4.1 21.4 0.68 4.0 1.2 6.7 7.0 0.0 0.0 1.1 1.1 6.3 

NCS 207 Bt 2 2611 26 1029 6.2 35.2 31.8 4.3 21.9 0.69 4.4 2.0 7.0 7.1 0.0 0.0 0.2 2.2 5.9 

KDCHH 9632 BG II 2590 25 925 5.6 33.5 28.8 4.1 21.4 0.74 2.8 1.9 7.1 6.6 0.0 0.0 1.1 2.5 5.1 

NSPL -999 BG II 2579 24 1030 5.8 35.6 31.8 4.5 22.3 0.70 3.6 1.2 8.7 5.4 0.0 0.0 0.2 1.5 8.7 


Tulasi 118 BGII 2518 21 1008 5.6 36.6 31.3 4.3 22.1 0.70 6.3 1.7 7.7 9.1 0.8 0.3 0.2 2.8 6.6 

PRCH 504 BG II 2508 21 973 5.6 34.9 32.2 4.3 22.3 0.69 3.5 1.1 7.5 13.3 0.6 0.0 0.2 1.4 5.1 

NAMCOT-607 BG II 2445 18 988 4.6 36.9 29.7 4.5 19.9 0.67 5.2 1.9 6.1 9.3 0.0 0.0 0.7 1.0 5.4 

KCH-135 Bt II 2370 14 943 5.2 36.8 32.3 4.1 21.4 0.66 3.5 1.5 6.4 9.4 0.2 0.0 0.3 1.7 5.5 

ANKUR-10122 BGII 2353 13 863 5.2 34.6 32.7 4.0 23.0 0.70 3.3 1.5 8.7 8.4 0.0 0.0 0.5 1.5 5.4 


SP 1037 B2 2297 11 888 5.5 36.0 30.6 4.3 21.6 0.71 6.3 1.2 5.1 5.9 0.3 0.0 0.9 2.1 5.6 

RCH- 596 BGII 2272 9 843 5.5 34.5 32.5 4.1 22.5 0.69 3.8 1.6 8.3 7.4 0.0 0.0 0.3 1.1 5.3 

VCH-602 BG II 2218 7 924 5.7 38.0 32.0 4.0 21.0 0.66 5.7 1.7 6.0 10.5 0.0 0.0 0.6 1.7 5.8 


ABCH-1020 2177 5 772 5.4 32.8 31.9 3.9 22.0 0.69 4.7 1.8 6.5 6.9 0.0 0.0 0.3 2.1 5.3 

MLCH- 318 BGII 2176 5 845 4.8 35.6 29.4 4.3 21.8 0.74 3.1 1.6 6.0 7.4 0.0 0.0 0.9 1.4 6.3 


NCEH- 29 1896 -9 691 5.3 32.9 32.3 3.9 22.4 0.69 4.7 2.1 9.5 6.4 0.0 0.0 0.5 1.4 6.1 

GBCH 04 1864 -10 751 5.6 36.6 30.0 4.1 21.1 0.70 6.3 1.2 9.1 9.7 0.0 0.0 6.5 2.8 3.6 

SBCH 284 1837 -12 773 5.5 37.2 28.4 4.2 20.6 0.72 7.5 1.5 6.1 6.4 0.0 0.0 7.9 2.7 8.2 


LC (Hybrid Check) 1685 -19 654 5.1 38.2 28.9 4.6 20.9 0.72 5.8 1.7 8.5 10.6 0.0 0.0 9.4 1.8 5.2 

GK-205 BG II 1516 -27 618 4.7 36.8 29.5 4.1 21.0 0.71 4.1 2.0 8.5 11.8 0.5 0.0 0.1 0.3 4.7 

7 

BS / SL 

Ratio 

Jassid/ 

plant 

Whitefly/ 

plant 

Thrips/ 

plant 

Aphid/pl 

ant 

!" # 

Damage 

in green 

bolls (%) 

Larvae / 

20 green 

bolls 

% square 

damage 

by 

Bollwor 

ms 

Open 

boll 

damage 

(%) 

Locule 

damage 

(%)

Entry 

8 

SUMMARY TABLE – TRIAL SET ‘B’ UNDER ETL BASED PROTECTION IN RAINFED CONDITION 

Mean 

Seed 


Yield 

(kg/ha) 

% Inc. Mean 

over RCH Lint Yield 

2 Bt (kg/ha) 

Mean 

boll 

weight 

(g) 

Mean 

Ginning 

Out Turn 

(%) 

2.5% 

span 

length 

(mm) 

Micronai 

re value 

Strength 

(g/tex) 

BS / SL 

Ratio 

Jassid/ 

plant 

Whitefly/ 

plant 

Thrips/ 

plant 

!" # 

Aphid/pl 

ant 

Damage 

in green 

bolls (%) 

Larvae / 

20 green 

bolls 

KDCHH 9632 BG II 2311 24 800 4.9 34.5 27.6 4.4 21.6 0.78 2.4 0.9 4.6 1.0 0.0 0.0 1.2 7.9 

NCS 207 Bt 2 2307 24 816 4.7 35.2 30.7 3.8 22.8 0.74 1.4 0.1 7.2 0.9 0.0 0.0 2.1 8.4 

ACH 155-2 2304 24 834 4.6 36.1 26.5 4.3 22.3 0.84 2.3 0.0 4.2 1.7 0.0 0.0 3.7 9.3 

VICH 15 Bt 2284 23 858 4.5 37.7 28.2 4.2 22.2 0.79 3.0 0.1 5.0 1.7 0.0 0.0 3.8 8.4 

NSPL -999 BG II 2268 22 814 5.0 36.0 29.8 4.4 22.3 0.75 2.0 0.3 5.3 1.8 0.0 0.0 2.6 4.3 

PCH 105 Bt 2 2207 18 824 4.9 37.5 29.6 4.3 23.1 0.78 2.7 0.5 6.1 1.5 0.0 0.0 4.0 6.6 

LC (Hybrid Check) 2133 14 793 4.3 37.1 28.4 4.3 23.1 0.81 2.2 0.3 6.0 1.7 0.0 0.0 3.5 9.4 

SP 1037 B2 2132 14 773 4.5 35.9 29.5 4.5 22.1 0.75 3.4 0.4 5.1 0.4 0.0 0.0 1.5 5.7 

ABCH-1020 2101 13 688 4.7 32.8 31.3 3.7 23.1 0.74 2.4 0.2 4.3 2.0 0.0 0.0 3.9 11.3 

KCH-135 Bt II 2088 12 726 4.6 34.9 30.5 3.9 21.7 0.71 2.6 0.2 4.7 2.5 0.0 0.0 2.2 5.5 

MLCH- 318 BGII 2085 12 736 4.2 35.3 28.2 4.4 23.0 0.82 0.9 0.2 3.9 1.1 0.0 0.0 3.2 9.9 

JKCH-2245 Bt 2061 11 720 4.3 35.0 30.8 4.0 21.7 0.71 2.5 0.8 4.4 1.5 0.0 0.0 3.9 5.6 

Tulasi 118 BGII 2060 10 761 4.9 37.2 30.4 4.1 21.9 0.72 1.8 0.4 4.7 1.5 0.0 0.0 1.7 7.9 

PRCH 504 BG II 2024 9 730 5.0 35.5 31.5 3.9 22.9 0.73 2.5 1.0 4.4 1.7 0.0 0.0 3.4 3.3 

NAMCOT-607 BG II 2012 8 710 4.0 35.0 27.9 4.3 20.5 0.74 2.9 0.6 5.2 1.3 0.0 0.0 2.8 8.6 

113 – 2 Bt 2011 8 719 4.6 35.9 29.2 4.3 22.5 0.77 1.4 0.3 4.0 2.3 0.0 0.0 2.2 8.5 

UPLHH-12 Bt 1962 5 699 5.4 35.5 28.4 4.1 22.0 0.78 2.7 0.4 4.7 1.1 0.0 0.0 2.4 5.2 

ANKUR-10122 BGII 1924 3 644 4.6 33.4 30.3 3.9 22.9 0.75 2.4 0.5 4.9 1.9 0.0 0.0 5.0 7.1 

NCEH- 29 1880 1 638 4.8 33.9 32.8 4.4 21.5 0.66 1.6 0.1 5.3 1.5 0.0 0.0 3.8 10.8 

RCH 2 Bt (Bt check) 1864 0 639 4.4 34.2 29.7 4.3 21.5 0.72 3.1 0.5 3.0 1.2 0.0 0.0 4.0 8.8 

RCH- 596 BGII 1851 -1 644 4.4 34.7 30.5 4.2 22.2 0.73 1.8 0.1 3.1 1.1 0.0 0.0 5.3 12.3 

VCH-602 BG II 1802 -3 659 4.8 36.8 29.9 4.1 21.4 0.72 1.8 0.3 5.9 1.6 0.0 0.0 1.8 8.1 

Bunny (Non-Bt check) 1721 -8 626 4.5 35.9 32.4 3.9 23.2 0.71 1.9 0.1 6.8 1.2 0.0 0.0 3.0 4.8 

SBCH 284 1613 -13 555 4.8 34.2 26.7 3.8 22.0 0.82 2.8 0.5 3.9 1.9 0.0 0.0 0.9 4.1 

GK-205 BG II 1573 -16 571 4.4 36.4 28.0 4.3 21.3 0.76 2.3 0.6 5.1 0.9 0.0 0.0 2.5 5.8 

GBCH 04 1455 -22 538 4.4 37.4 28.9 4.0 21.9 0.76 2.7 0.2 3.2 1.3 0.0 0.0 3.0 8.7 

8 

% square 

damage 

by 

Bollwor 

ms 

Locule 

damage 

(%)

9 

SUMMARY TABLE FOR COMBINED REPORT OF INTRA HIRSUTUM HYBRIDS UNDER IRRIGATED CONDITION 

(2006-07 & 2007-08) 

Entry 

Seed 

cotton 

yield 

(kg/ha) 

% 

Inc. 

over 

RCH 


lint 

yield 

(kg/ha) 

Mean 

boll 

weight 

(g) 

Mean 

GOT 

(%) 

2.5% 

span 

length 

(mm) 

Micronaire 

value 

Strength 

(g/tex) 

BS/SL 

Ratio 

Damage 

in green 

bolls 

(%) 

!" # 

Larvae 

/ 20 

green 

bolls 

% square 

damage 

by 

Bollworms 

Open 

boll 

damage 

(%) 

Brahma BG II 2524 12 903 5.9 36.4 32.1 4.4 22.3 0.70 2.1 0.4 0.7 4.7 5.9 

Ankur Jai Bt 2484 11 856 5.6 35.4 33.1 4.7 22.0 0.66 3.4 0.2 1.5 4.3 6.8 

BCHH 322-2 BG II 2432 8 866 5.4 36.4 32.7 4.5 22.0 0.67 2.6 0.5 0.8 5.0 4.0 

Tulasi 9 BG II 2395 7 893 5.6 36.8 31.6 4.8 21.6 0.68 3.5 0.4 1.3 5.2 6.7 

Akka BG II 2378 6 851 5.1 35.3 33.7 4.4 23.3 0.69 3.5 0.4 0.8 4.7 5.4 

KDCHH 441 BG II 2340 4 847 5.0 35.7 29.4 4.4 20.8 0.71 3.2 0.4 0.5 4.5 6.8 

RCH 2 Bt (Bt check) 2244 0 844 4.7 35.9 31.8 4.7 21.6 0.68 2.1 0.3 0.5 4.1 6.3 

NCEH 13 Bt (FG) 2016 -10 732 4.9 36.0 31.3 4.3 22.9 0.73 2.4 0.4 0.7 4.6 7.4 

JK Gowri Bt (ET 1) 1894 -16 618 4.9 35.1 30.4 4.9 21.2 0.70 5.7 0.6 8.0 8.7 9.9 

Bunny (Non-Bt check) 1883 -16 613 5.1 35.5 32.8 4.5 22.8 0.70 5.6 0.8 11.3 8.3 8.6 

LC (Hybrid Check) 1823 -19 614 4.8 37.4 31.0 4.8 22.3 0.72 5.8 0.8 11.8 9.1 8.6 

9 

Locule 

damage 

(%)

10 

SUMMARY TABLE FOR COMBINED REPORT OF INTRA HIRSUTUM HYBRIDS UNDER RAINFED CONDITION 

(2006-07 & 2007-08) 

Entry 

Seed 

cotton 

yield 

(kg/ha) 

% Inc. 

over 

RCH 2 

Bt 

lint 

yield 

(kg/ha) 

Mean 

boll 

weight 

(g) 

Mean 

GOT (%) 

2.5% 

span 

length 

(mm) 

Micronair 

e value 

Strength 

(g/tex) 

BS/SL 

Ratio 

Damage 

in green 

bolls (%) 

!" # 

Larvae / 

20 green 

bolls 

% square 

damage 

by 

Bollworm 

s 

Open boll 

damage 

(%) 

KDCHH 441 BG II 2296 16.7 802 4.6 35.0 28.1 4.5 20.3 0.72 3.7 1.5 4.6 6.3 8.6 

Tulasi 9 BG II 2212 12.4 810 4.8 36.7 30.5 4.4 21.4 0.70 7.1 0.0 3.2 4.5 8.2 

Ankur Jai Bt 2179 10.8 755 4.7 34.7 32.3 4.3 22.3 0.69 4.6 0.4 6.4 4.4 8.3 

Brahma BG II 2136 8.6 761 5.0 35.7 31.5 4.3 22.8 0.72 8.3 0.7 5.5 6.2 12.0 

Akka BG II 2113 7.4 726 4.6 34.5 32.8 4.4 22.2 0.68 4.2 0.4 5.3 6.0 8.3 

JK Gowri Bt (ET 1) 2080 5.8 729 4.5 35.1 29.9 4.5 21.5 0.72 20.4 1.8 6.8 12.2 13.2 

BCHH 322-2 BG II 1975 0.4 694 4.7 35.5 31.4 4.2 22.6 0.72 6.3 0.2 4.0 7.0 10.9 

RCH 2 Bt (Bt check) 1967 0.0 680 4.2 34.6 29.8 4.3 21.4 0.72 7.1 0.0 4.6 3.6 7.8 

NCEH 13 Bt (FG) 1966 0.0 683 4.6 35.1 31.2 4.1 22.5 0.72 4.2 0.3 5.1 3.9 7.3 

Bunny (Non-Bt check) 1854 -5.7 654 4.7 35.8 31.5 4.3 21.3 0.68 15.8 2.5 5.7 13.0 15.8 

LC (Hybrid Check) 1812 -7.9 634 4.4 35.3 28.2 4.3 20.7 0.73 21.7 1.7 6.0 10.0 13.9 

10 

Locule 

damage 

(%)

11 

SUMMARY TABLE FOR COMBINED REPORT OF INTER SPECIF H XB HYBRIDS UNDER IRRIGATED CONDITION 

(2006-07 & 2007-08) 

Entry 

Seed 

cotton 

yield 

(kg/ha) 

% Inc. 

over 

MRC 


Mean 

boll 

weight 

(g) 

Mean 

Ginning 

Out Turn 

(%) 

2.5% 

span 

length 

(mm) 

Micronai 

re value 

Bundle 

Strength 

(g/tex) 

BS / SL 

Ratio 

Damage 

in green 

bolls (%) 

!" # 

Larvae / 

20 green 

bolls 

% square 

damage 

by 

Bollwor 

ms 

Open 

boll 

damage 

(%) 

MRC 7918 BG II 2493 35 3.9 30.7 36.0 3.2 25.4 0.71 0.4 0.1 0.6 0.1 4.8 

MRC 7929 BG II 2332 27 4.0 31.1 36.2 3.3 23.7 0.66 0.4 0.1 1.3 0.4 5.5 

NCHB 945 Bt 2128 15 3.8 32.6 33.7 3.5 25.2 0.75 0.8 0.2 1.2 0.3 4.7 

NCHB 940 Bt 2018 9 3.9 33.5 33.6 3.2 25.6 0.76 0.4 0.1 1.3 0.0 5.1 

MRC 6918 Bt (Bt Check) 1843 0 3.8 32.9 34.3 3.5 26.3 0.77 0.4 0.1 0.9 0.0 4.0 

JK Chamundi Bt 1799 -2 3.7 31.8 35.5 3.3 25.0 0.70 0.8 0.1 0.5 0.8 7.7 

DCH 32 (Non Bt Check) 1491 -19 3.9 33.1 35.9 3.3 24.2 0.67 1.7 0.1 2.1 0.6 6.4 

11 

Locule 

damage 

(%)

12 

!" #$ 

The task of evaluating Bt cotton hybrids in the South Zone was assigned to the 

All India Coordinated Cotton Improvement Project (AICCIP) as per letter no. D. O. No. 2 

(3) / 2007 – CCI dated 05-06-2007 of ICAR. Since, number of entries sponsored for 

testing in intra-hirsutum hybrids category was in large numbers for first year evaluation, 

two sets of trials viz., Trial ‘A’ and Trial ‘B’ were conducted with common Bt and non-Bt 

and local check hybrids for field evaluation. 

INTRA-HIRSUTUM HYBRID TRIAL – FIRST YEAR TRIAL 

Trial Entries – Set ‘A’ 

Name of the Company Name of the Hybrid 

Ajeet Seeds Ltd. ACH 177-2 

Amar Biotech Ltd. ABCH-1065 

Ankur Seeds Pvt. Ltd. ANKUR-5642 BGII 

Bayer Bioscience Pvt. Limited. SP 504 B2 (Dhanno) 

Bio Seeds Research India Ltd. 340 – 2 Bt 

Ganga Kaveri Seeds Ltd. GK-217 BG II 

J. K. Agri Genetics Ltd. JK-Indra Bt 

Kaveri Seed Co. Ltd. KCH-707 BG II 

Namdhari Seeds Pvt.Ltd. NAMCOT-612 BG II 

Nandi Seeds Pvt. Ltd. NSPL-405 BG II 

Nath Seeds Ltd. NCEH-34 

Nuziveedu Seeds Ltd. NCS 854 Bt2 

Prabhat Agri Biotech Limited. PCH 2270 Bt 2 

Pravardhan Seeds Pvt. Ltd. PRCH 505 BG II 

Safal Seeds and Biotech Ltd. SBCH 292 

Tulasi Seeds Pvt. Ltd. Tulasi 7 BGII 

Uniphos Enterprises. UPLHH-5 Bt 

Vibha Agrotech Ltd. VBCH-1506 BGII 

Vibha Agrotech Ltd. VBCH-1505 BG II 

Vikki`s Agrotech Pvt.Ltd. VCH-603 BG II 

Vikram Seeds Limited. VICH 5 Bt 

Yashoda Hybrids Seeds Ltd. Monsoon Bt 

Zuari Seeds Ltd ZCH-50072 

Bt Check Hybrid RCH 2 Bt (Bt check) 

Non-Bt Check Hybrid Bunny (Non-Bt check) 

Local check hybrids LC (Hybrid Check) 

!" #

Trial Entries – Set ‘B’ 

Name of the Company Name of the Hybrid 

Ajeet Seeds Ltd. ACH 155-2 

Amar Biotech Ltd. ABCH-1020 

Ankur Seeds Pvt. Ltd. ANKUR-10122 BGII 

Bayer Bioscience Pvt. Limited. SP 1037 B2 

Bio Seeds Research India Ltd. 113 – 2 Bt 

Emergent Genetics India Pvt. Ltd. MLCH- 318 BGII 

Ganga Kaveri Seeds Ltd. GK-205 BG II 

Green Gold Seeds Ltd. GBCH 04 

J. K. Agri Genetics Ltd. JKCH-2245 Bt 

Kaveri Seed Co. Ltd. KCH-135 Bt II 

Krishidhan seeds Ltd. KDCHH 9632 BG II 

Namdhari Seeds Pvt.Ltd. NAMCOT-607 BG II 

Nandi Seeds Pvt. Ltd. NSPL -999 BG II 

Nath Seeds Ltd. NCEH- 29 

Nuziveedu Seeds Ltd. NCS 207 Bt 2 

Prabhat Agri Biotech Limited. PCH 105 Bt 2 

Pravardhan Seeds Pvt. Ltd. PRCH 504 BG II 

Rasi Seed Co. Ltd. RCH- 596 BGII 

Safal Seeds and Biotech Ltd. SBCH 284 

Tulasi Seeds Pvt.Ltd. Tulasi 118 BGII 

Uniphos Enterprises. UPLHH-12 Bt 

Vikki`s Agrotech Pvt.Ltd. VCH-602 BG II 

Vikram Seeds Limited. VICH 15 Bt 

Bt Check Hybrid RCH 2 Bt (Bt check) 

Non-Bt Check Hybrid Bunny (Non-Bt check) 

Local check hybrids LC (Hybrid Check) 

Trial locations 

The following were the trial locations: 

Irrigated (I) 

13 

1. Regional Agricultural Research Station, Warangal, Acharya N. G. Ranga 

Agricultural University, Andhra Pradesh, 

2. Agricultural Research Station, Sirugappa, University of Agricultural Sciences, 

Karnataka, 

3. Agricultural Research Station, Raichur, University of Agricultural Sciences, 

Karnataka, 

4. Agricultural Research Station, Beemarayangudi, University of Agricultural 

Sciences, Karnataka, 

5. Cotton Research Station, Tamil Nadu Agricultural University, Coimbatore, and 

6. Cotton Research Station, Tamil Nadu Agricultural University, Srivilliputur. 

!" #

Rainfed (R) 

14 

1. Regional Agricultural Research Station, Lam, Guntur, Acharya N. G. Ranga 


2. Regional Agricultural Research Station, Nandyal, Acharya N. G. Ranga 


3. Regional Agricultural Research Station, Adilabad, Acharya N. G. Ranga 


4. Agricultural Research Station, Dharwad, University of Agricultural Sciences, 

Karnataka, 

5. Agricultural Research Station, Tamil Nadu Agricultural University, Aruppukottai. 

Trial Details 

Trials 

No. of Entries : 24 + 3 checks (Set ‘A’); 23 + checks (Set ‘B’); 

No. of Rows : Yield Trial: 6 Rows 

Screening Trials 2 & 3: 3 Rows 

Row Length: : 6m 

Spacing: Irrigated : Andhra Pradesh - 90 x 90 cm 

Karnataka - 90 x 60 cm 

Tamil Nadu - 90 x 60 cm 

Rainfed : Lam - 120 x 60 cm 

Nandyal - 90 x 60 cm 

Adilabad - 90 x 90 cm 

Dharwad - 90 x 60 cm 

Aruppukottai - 75 x 45 cm 

No. of Replications: : Three 

Design : Randomized Block Design 

Fertilizers : As per recommendations 

Evaluation under ETL Based Plant Protection 

For major sucking pests and boll worms, weekly observations were recorded from 

45 DAS and insecticide were sprayed based on the threshold levels of pests. The 

sprayings were undertaken in all the replications of an entry even if in one of the 

replications, the threshold level of infestation has exceeded. 

!" #

15 

Evaluation under Unprotected Conditions for Boll worms 

Against bollworms, all the test entries including controls were evaluated under 

unprotected conditions. 

Pathological Evaluation 

Reaction to major diseases was observed in all the entries in the trial. 

Observations Recorded 

Various biometrical observations viz., Germination Percentage, Final Plant Stand, 

Ginning Percentage, Lint Index, Seed Index, Seed Cotton Yield and Lint Yield were 

recorded in the ETL based plant protection plots. In ETL based plant protection trial, 

observations on sap sucking pests, boll worm damages and natural enemies were also 

recorded. The incidence of major diseases like Alternaria leaf spot, bacterial blight and 

grey mildew were recorded under natural conditions. 

A. BIOMETRICAL EVALUATION. 

Biometrical data recorded in the ETL based plant protection trial are furnished below for 

Trial Set ‘A’ followed by Trial Set ‘B’. 

Germination and Final Plant Stand 

Trial Set ‘A’ 

The germination as well as plant stand at harvest was good in all the entries under both 

irrigated and rainfed situations (Table 1). 

Boll Weight 

Overall mean boll weight of the Bt hybrids ranged from 4.6 to 6.4 g under irrigated 

conditions, while under rainfed conditions, it ranged between 4.2 and 5.7 g (Table 2). 

Among all the hybrids tested the highest boll weight was recorded in VICH 5 Bt under 

both irrigated (6.4 g) and rainfed conditions (5.7 g). 

Ginning Outturn (%) 

The ginning outturn data recorded in ten centres (five irrigated conditions + five rainfed 

conditions) is given in Table 3. The mean data ranged from 32.3 to 38.3 % in irrigated 

conditions and from 33.5 to 36.5 % in rainfed conditions. 

!" #

16 

Table 1. Germination (%) and Plant Stand in Set ‘A’ under ETL based protection 

Germination (%) Plant Stand 

Entry 

Coimbatore B'gudi Coimb 

atore 

LAM 

Mean 

(I) 

Mean 

(RF) 

JK-Indra Bt 97.2 44.3 57.3 58.3 50.8 58.3 

Bunny (Non-Bt check) 91.1 45.7 53.0 58.0 49.3 58.0 

340 – 2 Bt 95.0 45.3 54.3 58.0 49.8 58.0 

VBCH-1506 BGII 87.8 35.7 47.0 57.7 41.3 57.7 

ANKUR-5642 BGII 92.2 44.7 54.0 59.7 49.3 59.7 

Tulasi 7 BGII 88.9 47.0 52.0 57.3 49.5 57.3 

UPLHH-5 Bt 90.0 43.7 51.3 57.7 47.5 57.7 

SBCH 292 92.8 48.0 54.3 58.3 51.2 58.3 

NSPL-405 BG II 89.4 45.7 52.0 58.7 48.8 58.7 

ACH 177-2 92.2 47.0 54.0 58.0 50.5 58.0 

NCS 854 Bt2 93.9 44.3 52.7 59.3 48.5 59.3 

ZCH-50072 93.3 47.3 54.7 59.0 51.0 59.0 

VBCH-1505 BG II 81.1 38.0 47.7 58.7 42.8 58.7 

PRCH 505 BG II 85.0 44.7 48.0 58.0 46.3 58.0 

VICH 5 Bt 91.7 43.0 53.3 60.0 48.2 60.0 

LC (Hybrid Check) 95.0 47.7 55.3 59.0 51.5 59.0 

VCH-603 BG II 95.0 42.3 53.3 58.7 47.8 58.7 

KCH-707 BG II 80.0 29.3 44.3 58.0 36.8 58.0 

SP 504 B2 (Dhanno) 91.1 40.0 51.3 58.7 45.7 58.7 

GK-217 BG II 94.4 43.3 53.7 58.0 48.5 58.0 

PCH 2270 Bt 2 99.4 45.0 57.0 59.3 51.0 59.3 

Monsoon Bt 98.3 44.7 55.7 58.3 50.2 58.3 

ABCH-1065 90.6 38.7 52.3 60.0 45.5 60.0 

NCEH-34 92.2 44.3 52.7 59.3 48.5 59.3 

NAMCOT-612 BG II 82.2 38.7 47.3 59.0 43.0 59.0 

RCH 2 Bt (Bt check) 80.6 46.0 46.7 58.7 46.3 58.7 

!" #

Table 2. Boll weight (g) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

17 

JK-Indra Bt 5.8 5.8 6.1 6.9 6.4 5.7 3.9 6.3 6.5 3.5 5.7 6.2 5.2 

Bunny (Non-Bt check) 5.0 5.2 4.8 6.2 5.4 5.2 3.1 4.3 5.7 3.7 4.8 5.3 4.4 

340 – 2 Bt 5.0 4.8 4.7 6.3 5.6 5.4 4.1 5.1 5.7 3.6 5.1 5.3 4.8 

VBCH-1506 BGII 5.0 5.6 6.2 6.3 6.4 5.1 4.1 4.3 6.5 3.6 5.2 5.9 4.7 

ANKUR-5642 BGII 4.0 4.8 5.2 5.5 4.6 5.5 3.9 4.5 5.8 3.4 4.7 4.8 4.6 

Tulasi 7 BGII 4.9 4.8 5.6 6.2 5.5 5.0 3.9 5.1 5.4 3.9 5.0 5.4 4.6 

UPLHH-5 Bt 4.4 4.5 4.4 4.6 5.3 4.2 3.7 4.3 5.1 3.8 4.4 4.6 4.2 

SBCH 292 4.8 4.8 4.7 5.6 4.3 4.5 3.8 5.2 4.9 3.2 4.5 4.8 4.3 

NSPL-405 BG II 4.9 5.3 5.4 6.3 6.3 4.3 3.7 5.2 6.1 3.8 5.1 5.6 4.6 

ACH 177-2 4.4 5.2 5.6 6.2 5.9 5.3 3.9 4.2 5.5 3.4 4.9 5.5 4.4 

NCS 854 Bt2 5.2 5.7 5.7 6.5 5.6 5.5 4.0 5.9 6.6 3.6 5.4 5.7 5.1 

ZCH-50072 4.9 5.2 5.9 6.2 6.3 5.5 3.9 4.9 6.3 3.6 5.2 5.7 4.8 

VBCH-1505 BG II 4.3 5.3 5.6 6.6 6.4 5.4 4.5 4.1 6.2 4.0 5.3 5.6 4.8 

PRCH 505 BG II 4.9 5.4 6.1 6.5 6.6 5.6 3.9 5.7 6.1 3.5 5.4 5.9 5.0 

VICH 5 Bt 5.4 6.5 6.0 7.1 7.0 6.0 4.9 6.7 6.7 3.9 6.1 6.4 5.7 

LC (Hybrid Check) 4.2 5.1 4.7 6.1 5.5 4.9 3.7 4.5 5.7 3.5 4.8 5.1 4.5 

VCH-603 BG II 4.4 5.6 6.1 7.0 5.5 5.6 4.0 4.8 6.4 3.5 5.3 5.7 4.9 

KCH-707 BG II 4.5 5.4 5.0 6.6 5.5 5.2 4.1 4.9 5.7 3.5 5.1 5.4 4.7 

SP 504 B2 (Dhanno) 5.3 5.5 6.0 6.7 5.4 5.7 4.5 6.0 6.0 3.1 5.3 5.8 5.1 

GK-217 BG II 5.0 5.3 5.4 6.2 5.5 5.7 4.1 5.4 5.6 3.8 5.2 5.5 4.9 

PCH 2270 Bt 2 4.7 5.2 5.1 6.0 6.4 4.7 3.9 5.0 5.6 3.5 5.0 5.5 4.5 

Monsoon Bt 4.1 5.7 5.9 7.0 5.3 5.3 4.0 6.4 5.9 3.1 5.3 5.6 4.9 

ABCH-1065 5.2 4.6 4.6 5.8 4.1 5.1 3.7 6.1 4.9 4.0 4.8 4.9 4.8 

NCEH-34 4.9 5.3 5.6 6.5 6.1 4.9 3.9 5.3 5.8 3.2 5.1 5.7 4.6 

NAMCOT-612 BG II 4.5 5.4 5.4 6.8 5.6 5.6 3.7 4.9 5.8 3.0 5.1 5.5 4.6 

RCH 2 Bt (Bt check) 4.3 5.1 5.2 6.1 5.6 5.1 3.3 4.8 5.4 3.2 4.8 5.3 4.4 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Table 3. Ginning outturn in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coim batore 

18 

Srivilliputhr 




VBCH-1506 BGII 31.7 36.7 34.0 36.0 36.8 34.4 31.0 31.0 38.3 36.2 34.8 35.0 34.2 

ANKUR-5642 BGII 30.7 35.5 28.0 31.3 36.2 35.8 30.0 28.0 35.3 38.3 33.6 32.3 33.5 

Tulasi 7 BGII 30.8 35.6 35.0 34.0 35.8 35.5 32.0 28.0 36.8 37.0 34.2 34.3 33.9 


SBCH 292 33.3 38.3 40.0 37.6 35.9 37.2 32.0 34.0 40.0 33.9 35.8 37.0 35.4 

NSPL-405 BG II 29.8 36.9 38.0 34.0 34.0 34.9 32.0 30.0 38.3 39.2 34.6 34.5 34.9 

ACH 177-2 33.3 34.6 34.0 33.4 36.1 34.6 36.0 32.0 36.6 36.4 35.0 34.3 35.1 


ZCH-50072 34.6 35.4 36.0 33.6 35.6 36.3 36.0 36.0 36.3 38.0 36.0 35.0 36.5 

VBCH-1505 BG II 32.4 39.1 43.0 36.8 40.4 36.9 32.0 32.0 40.0 35.5 36.2 38.3 35.3 

PRCH 505 BG II 31.9 35.3 35.0 33.5 35.7 34.5 38.0 32.0 37.2 34.7 35.1 34.3 35.3 



VCH-603 BG II 36.3 38.5 40.0 36.6 39.1 36.6 34.0 38.0 38.4 34.5 36.7 38.1 36.3 

KCH-707 BG II 32.4 36.8 37.0 34.5 36.2 35.0 32.0 32.0 37.6 34.3 34.5 35.4 34.2 

SP 504 B2 (Dhanno) 35.0 37.6 40.0 36.6 38.2 35.7 34.0 34.0 38.4 36.0 36.1 37.5 35.6 

GK-217 BG II 30.9 32.5 36.0 33.6 37.0 34.9 30.0 30.0 38.3 39.3 34.7 34.0 34.5 



ABCH-1065 36.8 37.6 36.0 35.4 35.0 36.3 32.0 31.0 38.1 39.0 35.3 36.2 35.3 

NCEH-34 36.8 35.0 36.0 34.0 35.6 35.2 33.0 34.0 37.1 37.2 35.2 35.5 35.3 

NAMCOT-612 BG II 32.2 38.1 36.0 36.3 35.4 35.6 34.0 33.0 38.5 35.6 35.5 35.6 35.3 


LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall m ean 

!" # 

Mean (I) 

Mean (RF)

Lint Index and Seed Index 

19 

Data recorded on lint index and seed index in ten centres are furnished in Tables 4 and 5. 

Under irrigated conditions, the mean lint index ranged from 5.1 to 6.9 g, whereas in 

rainfed conditions, the range was between 4.9 and 6.3 g. The mean seed index ranged 

from 9.6 to 12.1 g. 

Table 4. Lint Index (g) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 




VBCH-1506 BGII 3.8 6.7 6.2 6.4 7.7 5.0 5.3 4.2 7.5 6.9 6.1 6.1 5.8 

ANKUR-5642 BGII 3.5 5.7 4.6 5.4 6.8 5.4 6.4 3.5 6.0 5.0 5.5 5.2 5.2 

Tulasi 7 BGII 3.8 6.1 6.5 6.3 6.9 5.7 6.6 3.8 7.0 7.6 6.3 5.9 6.1 


SBCH 292 4.5 5.7 6.7 6.6 6.1 5.3 6.8 4.1 6.7 5.1 5.8 5.9 5.6 

NSPL-405 BG II 4.0 6.4 6.1 6.6 6.5 5.5 5.7 4.0 6.8 5.5 5.8 5.9 5.5 

ACH 177-2 3.7 5.6 5.2 6.5 6.9 4.8 4.4 5.1 6.9 4.6 5.6 5.6 5.2 


ZCH-50072 5.1 5.6 5.9 5.8 7.1 4.8 6.5 3.4 6.3 4.1 5.4 5.9 5.0 

VBCH-1505 BG II 4.3 6.5 8.4 7.2 8.1 4.8 4.3 3.7 8.0 5.2 5.9 6.9 5.2 

PRCH 505 BG II 5.2 6.2 6.2 7.0 7.4 6.4 6.3 5.8 6.5 4.7 6.3 6.4 5.9 



VCH-603 BG II 5.1 6.4 7.6 7.1 7.2 5.8 4.3 5.6 6.8 5.4 6.0 6.7 5.6 

KCH-707 BG II 4.4 6.6 7.1 7.0 6.7 5.9 6.6 5.3 6.6 5.3 6.2 6.3 5.9 

SP 504 B2 (Dhanno) 5.8 6.6 6.7 7.5 7.5 6.0 6.7 5.6 6.9 5.8 6.6 6.8 6.2 

GK-217 BG II 3.1 5.5 6.2 6.6 7.5 5.3 6.3 4.3 6.8 7.7 6.4 5.8 6.1 



ABCH-1065 5.0 6.0 6.3 6.5 6.5 5.4 6.6 4.2 6.2 5.7 5.9 6.1 5.6 

NCEH-34 4.6 6.1 6.3 6.2 7.3 5.3 6.4 4.9 6.5 6.3 6.1 6.1 5.9 

NAMCOT-612 BG II 4.2 6.4 6.3 6.9 7.0 6.3 6.8 4.1 6.9 6.0 6.3 6.1 6.0 


Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Table 5. Seed Index (g) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coim batore 

20 

Srivilliputhr 




VBCH-1506 BGII 8.2 11.6 12.0 11.5 13.5 9.3 10.5 9.2 12.0 12.4 11.2 11.3 10.7 

ANKUR-5642 BGII 8.9 10.3 11.8 11.9 11.9 9.9 10.5 8.8 11.0 8.3 10.3 11.0 9.7 

Tulasi 7 BGII 9.3 11.1 12.0 12.2 12.0 10.3 10.7 9.7 12.0 13.1 11.4 11.3 11.2 


SBCH 292 9.0 9.1 10.0 11.0 10.7 8.9 10.5 7.8 10.0 10.2 9.9 10.0 9.5 

NSPL-405 BG II 9.4 10.9 9.9 12.8 11.7 10.2 9.2 8.9 11.0 8.7 10.4 10.9 9.6 

ACH 177-2 7.5 10.6 10.1 12.9 12.1 9.1 10.6 10.6 12.0 8.2 10.8 10.7 10.1 


ZCH-50072 9.6 10.3 10.5 11.5 12.9 8.5 10.6 5.9 11.0 6.9 9.6 11.0 8.6 

VBCH-1505 BG II 8.9 10.0 11.2 12.4 11.9 8.7 6.4 7.7 12.0 9.7 9.8 10.9 8.9 

PRCH 505 BG II 12.1 11.3 11.6 13.9 13.7 12.1 12.4 12.3 11.0 9.1 12.1 12.5 11.4 



VCH-603 BG II 8.9 10.2 11.4 12.2 11.3 10.0 10.4 8.8 11.0 10.5 10.6 10.8 10.1 

KCH-707 BG II 9.2 11.3 12.1 13.2 11.5 10.3 10.4 10.8 11.0 10.4 11.1 11.5 10.6 

SP 504 B2 (Dhanno) 10.7 11.0 10.0 12.9 12.1 10.6 10.5 10.8 11.0 10.5 11.2 11.3 10.7 

GK-217 BG II 6.9 11.3 11.1 13.1 13.0 11.0 10.5 9.8 11.0 11.2 11.4 11.1 10.7 



ABCH-1065 8.6 10.1 11.1 11.8 10.9 9.0 10.7 9.1 10.0 9.7 10.2 10.5 9.7 

NCEH-34 7.9 11.2 11.9 12.1 11.6 9.6 10.4 9.2 11.0 10.4 10.6 11.0 10.1 

NAMCOT-612 BG II 8.7 10.3 11.2 12.2 13.0 9.7 8.7 7.9 11.0 10.5 10.4 11.1 9.6 


LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall m ean 

!" # 

Mean (I) 

Mean (RF)

21 

Mean Yield under ETL Based Plant Protection 

Under irrigated conditions, the highest mean seed cotton yield recorded was 2121 kg/ha 

(340-2 Bt) with 17 % yield increase over RCH 2 Bt (Table 6). Eleven other test hybrids 

also registered 3 to 12 % yield increase over RCH 2 Bt. The lowest yield recorded was 

1428 kg/ha as noted in VBCH 1506 BG II. 

Table 6. Mean seed cotton yield under irrigated conditions in Set ‘A’ under ETL 

based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coim batore 

Srivilliputhr 

M ean (I) 

!" # 

% Inc. over 

RCH 2 Bt 

340 – 2 Bt 2120 2084 3519 1278 3193 2933 2521 17 

JK-Indra Bt 2016 2943 3338 954 2508 2762 2420 12 

NSPL-405 BG II 1747 2628 3292 681 3064 3093 2417 12 

NCS 854 Bt2 1594 2126 3112 937 2990 3372 2355 9 

ANKUR-5642 BGII 1480 2388 3078 834 2885 3441 2351 9 

Tulasi 7 BGII 2072 2154 3133 1114 3027 2303 2301 7 

ACH 177-2 1813 2444 3117 968 2971 2325 2273 5 

VICH 5 Bt 1475 1976 3292 1011 2767 3102 2271 5 

ABCH-1065 1205 2339 3310 874 2891 2975 2266 5 

VBCH-1505 BG II 814 2473 3584 953 2829 2889 2257 5 

UPLHH-5 Bt 1284 2660 3343 991 1956 3252 2248 4 

PCH 2270 Bt 2 1620 2383 3214 940 2773 2433 2227 3 

GK-217 BG II 1803 2118 3299 1071 2331 2342 2161 0 

RCH 2 Bt (Bt check) 1196 2593 3189 841 2193 2928 2157 0 

NAMCOT-612 BG II 1116 2267 2979 802 2835 2708 2118 -2 

NCEH-34 1688 2206 3259 978 1923 2619 2112 -2 

Monsoon Bt 1409 2196 3198 964 2378 2523 2111 -2 

VCH-603 BG II 1215 2042 3256 924 2471 2742 2108 -2 

PRCH 505 BG II 1310 2179 3415 1000 2601 2040 2091 -3 

SBCH 292 1469 2027 3215 799 2107 2886 2084 -3 

SP 504 B2 (Dhanno) 1405 2549 3133 950 2985 1316 2056 -5 

ZCH-50072 1465 2066 3024 725 2197 2538 2003 -7 

KCH-707 BG II 1225 1738 3057 584 1786 2292 1780 -17 

LC (Hybrid Check) 1673 1929 1817 1269 1771 2210 1778 -18 

Bunny (Non-Bt check) 1694 2169 1634 878 2308 1562 1707 -21 

VBCH-1506 BGII 783 1626 2483 383 1848 1446 1428 -34 

CD @ 5% 393 445 490 216 

CV % 16 12 12 5

22 

Under rainfed conditions, the highest mean seed cotton yield recorded was 2359 kg/ha 

(GK 217 BG II) with 26 % yield increase over RCH 2 Bt (Table 7). Nineteen other test 

hybrids recorded better yield over RCH 2 Bt with 1 – 25 % yield increase over RCH 2 Bt. 

Table 7. Mean seed cotton yield under rainfed conditions in Set ‘A’ under ETL 


Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean (RF) 

!" # 

% Inc. over RCH 


GK-217 BG II 3269 2343 2091 2192 1898 2359 26 

340 – 2 Bt 3580 2237 1967 2459 1385 2326 25 

Tulasi 7 BGII 2682 2275 2121 2441 1908 2285 23 

ACH 177-2 2715 2122 2101 2831 1470 2248 21 

VICH 5 Bt 3449 2150 1431 2169 1951 2230 20 

LC (Hybrid Check) 3126 1818 1802 2357 1680 2157 16 

JK-Indra Bt 2434 2337 2181 2600 1116 2134 14 

ABCH-1065 2718 2080 1452 2277 2116 2129 14 

PCH 2270 Bt 2 3060 2086 1843 2077 1456 2104 13 

NSPL-405 BG II 2466 2032 1885 2498 1533 2083 12 

ANKUR-5642 BGII 2939 1920 1586 2502 1354 2060 10 

NCS 854 Bt2 2456 2317 1615 2838 1062 2058 10 

PRCH 505 BG II 3014 2085 1524 2068 1576 2054 10 

SP 504 B2 (Dhanno) 2644 2433 1648 2125 1350 2040 9 

Monsoon Bt 2573 1964 1864 2349 1418 2034 9 

ZCH-50072 2488 2358 1277 2409 1602 2027 9 

NAMCOT-612 BG II 2947 1939 1421 2326 1204 1967 5 

NCEH-34 2638 2047 1534 2246 1329 1959 5 

UPLHH-5 Bt 2202 1723 1555 2772 1462 1943 4 

VCH-603 BG II 2613 1893 1455 2237 1464 1932 4 

SBCH 292 2131 1777 1421 2537 1466 1866 0 

RCH 2 Bt (Bt check) 2260 2189 1194 2317 1364 1865 0 

Bunny (Non-Bt check) 2719 1474 1782 1926 1208 1822 -2 

KCH-707 BG II 2129 2038 1421 1841 1431 1772 -5 

VBCH-1505 BG II 1693 1969 752 2746 1585 1749 -6 

VBCH-1506 BGII 1720 1351 813 2200 1349 1487 -20 

CD @ 5% 257 763 212 443 623 

CV % 6 8 8 11 11

Mean lint yield 

23 

Under irrigated conditions, the highest mean lint yield was recorded in VBCH 

1505 BG II (996 kg/ha) with 14% yield increase over RCH 2 Bt. Seven other test hybrids 

had registered better lint yield over the best check hybrid with 1 – 11 % increase over 

RCH 2 Bt (Table 8). 

Table 8. Mean lint yield (kg/ha) in irrigated centres in Set ‘A’ under ETL based 

Protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

Mean (I) 

!" # 

% Inc. over RCH 


VBCH-1505 BG II 264 967 1541 1040 1168 996 14 

NSPL-405 BG II 521 970 1251 1043 1052 967 11 




ABCH-1065 443 875 1192 1023 1043 915 5 

VCH-603 BG II 441 788 1302 916 1072 904 4 


SBCH 292 489 774 1286 791 1038 876 0 


Tulasi 7 BGII 638 771 1097 1032 824 872 0 

ACH 177-2 604 845 1060 995 841 869 0 

VICH 5 Bt 465 667 1185 883 1132 866 -1 

SP 504 B2 (Dhanno) 492 958 1253 1097 504 861 -1 

UPLHH-5 Bt 369 920 1170 686 1158 860 -1 

NAMCOT-612 BG II 359 866 1072 1028 961 857 -2 

ANKUR-5642 BGII 454 766 862 902 1248 847 -3 

Monsoon Bt 489 777 1215 827 925 846 -3 

GK-217 BG II 557 757 1188 784 867 831 -5 

NCEH-34 621 773 1173 652 932 830 -5 

PRCH 505 BG II 418 769 1195 875 733 798 -9 

ZCH-50072 507 731 1089 738 905 794 -9 

KCH-707 BG II 397 635 1131 620 827 722 -17 

LC (Hybrid Check) 500 735 836 652 869 718 -18 


VBCH-1506 BGII 248 597 844 663 532 577 -34

24 

Under rainfed conditions, the highest lint yield was recorded in GK 217 BG II 

(811 kg/ha) with 26% increase over RCH 2 Bt (Table 9). Several other test hybrids 

showed superior performance in terms of lint yield with 2-24 % increase over RCH 2 Bt. 

Table 9. Mean lint yield (kg/ha) in rainfed centres in Set ‘A’ under ETL based 

protection 

Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean 

(RF) 

!" # 

% Inc. 

over RCH 


GK-217 BG II 1142 703 626 840 746 811 26 


ACH 177-2 939 764 671 1035 535 789 23 

Tulasi 7 BGII 953 728 593 898 706 776 21 


ABCH-1065 986 666 450 868 825 759 18 


ZCH-50072 904 849 459 875 609 739 15 


PRCH 505 BG II 1040 792 487 769 547 727 13 

NSPL-405 BG II 861 650 565 958 601 727 13 

SP 504 B2 (Dhanno) 942 827 560 817 486 726 13 


Monsoon Bt 876 648 615 910 486 707 10 


NAMCOT-612 BG II 1036 659 468 895 429 697 9 

ANKUR-5642 BGII 1053 576 443 884 519 695 8 

NCEH-34 930 676 521 833 494 691 8 

VCH-603 BG II 956 644 461 858 505 685 7 

SBCH 292 793 569 482 1015 497 671 5 


KCH-707 BG II 984 652 454 692 491 654 2 


VBCH-1505 BG II 625 630 240 1098 563 631 -2 


VBCH-1506 BGII 593 419 251 843 488 519 -19

FIBRE QUALITY EVALUATION 

25 

Fibre quality evaluations were done in seven centres using High Volume Instrument. 

Among the test entries, the fibre length ranged between 26.3 mm and 32.9 mm as 

compared to 32.8 mm recorded in the best check hybrid, Bunny (Table 10). 

Table 10. 2.5% Span Length (mm) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

JK-Indra Bt 29.3 30.9 32.7 33.7 31.4 30.1 30.5 31.2 31.7 30.7 

Bunny (Non-Bt check) 32.1 33.0 34.1 33.9 32.2 32.0 31.8 32.8 33.3 32.0 

340 – 2 Bt 31.2 32.3 33.8 32.9 32.9 29.8 32.2 32.3 32.5 31.6 

VBCH-1506 BGII 30.4 31.4 31.7 33.2 29.1 29.8 26.6 30.1 31.7 28.5 

ANKUR-5642 BGII 31.4 33.4 33.9 34.7 33.4 32.0 30.3 32.9 33.4 31.9 

Tulasi 7 BGII 30.7 31.1 32.6 32.6 32.4 27.2 29.9 30.9 31.8 29.8 

UPLHH-5 Bt 26.0 28.6 28.9 30.2 28.2 27.1 27.2 28.3 28.4 27.5 

SBCH 292 25.3 26.4 26.4 26.7 24.9 27.9 25.7 26.3 26.2 26.1 

NSPL-405 BG II 30.0 30.7 32.8 34.6 32.4 28.0 31.3 31.8 32.0 30.6 

ACH 177-2 30.8 28.6 31.2 31.1 29.4 25.7 29.4 29.4 30.4 28.2 

NCS 854 Bt2 30.9 32.0 32.9 33.2 30.1 28.8 29.1 30.8 32.2 29.3 

ZCH-50072 31.1 30.2 31.2 31.0 30.9 27.4 29.2 29.9 30.9 29.2 

VBCH-1505 BG II 27.2 27.3 28.9 29.2 27.0 25.1 26.0 27.2 28.1 26.0 

PRCH 505 BG II 32.0 33.8 34.1 34.1 31.1 28.9 32.0 32.0 33.5 30.7 

VICH 5 Bt 28.6 32.3 31.9 33.3 30.3 28.0 30.1 30.7 31.5 29.5 

LC (Hybrid Check) 28.3 30.7 28.5 29.6 28.5 30.2 30.9 29.6 29.3 29.9 

VCH-603 BG II 26.7 27.5 28.6 31.3 28.6 25.7 29.3 28.7 28.5 27.9 

KCH-707 BG II 28.1 30.2 31.8 32.1 29.2 27.6 30.6 30.3 30.6 29.2 

SP 504 B2 (Dhanno) 31.4 29.1 33.2 32.6 30.9 29.9 31.1 31.5 31.6 30.6 

GK-217 BG II 30.6 30.6 31.6 34.2 31.5 29.6 30.8 31.5 31.8 30.6 

PCH 2270 Bt 2 31.2 29.8 32.4 33.7 31.9 28.5 30.1 31.3 31.8 30.2 

Monsoon Bt 32.1 34.1 33.2 33.6 31.6 29.0 30.9 31.7 33.3 30.5 

ABCH-1065 27.9 29.8 30.4 30.1 28.0 27.2 26.5 28.4 29.5 27.3 

NCEH-34 31.4 33.7 33.3 29.4 32.9 28.6 31.2 31.1 32.0 30.9 

NAMCOT-612 BG II 27.8 28.4 28.7 33.2 30.0 26.4 27.8 29.2 29.5 28.0 

RCH 2 Bt (Bt check) 29.1 31.0 32.1 32.7 30.4 28.7 30.3 30.8 31.2 29.8 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

26 

There was not much variation in U.R % and its value ranged between 48.2 and 

52.2 per cent (Table 11). 

Table 11. Uniformity Ratio in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

JK-Indra Bt 51.0 50.0 51.0 49.0 49.4 50.0 50.1 50.3 49.7 

Bunny (Non-Bt check) 51.0 48.0 50.7 47.0 49.4 48.0 48.8 49.2 48.7 

340 – 2 Bt 50.0 47.0 49.3 48.0 46.5 49.0 48.2 48.6 47.7 

VBCH-1506 BGII 46.0 48.0 50.7 49.0 49.1 48.0 49.2 48.4 48.5 

ANKUR-5642 BGII 50.0 48.0 48.7 48.0 47.1 50.0 48.4 48.7 48.5 

Tulasi 7 BGII 51.0 50.0 51.0 47.0 48.7 49.0 48.9 49.8 48.9 

UPLHH-5 Bt 50.0 51.0 52.0 52.0 52.6 50.0 51.7 51.3 51.3 

SBCH 292 51.0 51.0 52.3 53.0 53.6 50.0 52.2 51.8 51.8 

NSPL-405 BG II 48.0 48.0 51.3 47.0 49.2 49.0 49.1 48.6 49.1 

ACH 177-2 51.0 47.0 51.7 48.0 50.2 49.0 49.7 49.4 49.6 

NCS 854 Bt2 50.0 51.0 50.3 51.0 48.8 50.0 50.0 50.6 49.4 

ZCH-50072 49.0 49.0 50.7 49.0 49.1 50.0 49.7 49.4 49.6 

VBCH-1505 BG II 51.0 51.0 52.0 50.0 51.8 51.0 51.2 51.0 51.4 

PRCH 505 BG II 50.0 48.0 51.0 47.0 49.3 49.0 49.1 49.0 49.1 

VICH 5 Bt 51.0 51.0 51.0 47.0 50.3 50.0 49.6 50.0 50.2 

LC (Hybrid Check) 50.0 50.0 52.3 52.0 50.9 47.0 50.6 51.1 48.9 

VCH-603 BG II 49.0 49.0 52.0 49.0 49.5 50.0 50.1 49.8 49.8 

KCH-707 BG II 50.0 50.0 49.3 49.0 50.2 49.0 49.4 49.6 49.6 

SP 504 B2 (Dhanno) 47.0 49.0 50.3 50.0 48.3 49.0 49.4 49.1 48.7 

GK-217 BG II 47.0 46.0 50.3 48.0 49.1 50.0 49.4 47.8 49.6 

PCH 2270 Bt 2 49.0 48.0 49.7 49.0 48.2 49.0 49.0 48.9 48.6 

Monsoon Bt 51.0 48.0 50.0 50.0 47.9 51.0 49.7 49.8 49.4 

ABCH-1065 51.0 51.0 52.7 52.0 50.7 51.0 51.6 51.7 50.9 

NCEH-34 46.0 48.0 48.7 51.0 47.2 50.0 49.2 48.4 48.6 

NAMCOT-612 BG II 50.0 51.0 52.3 48.0 49.3 49.0 49.7 50.3 49.2 

RCH 2 Bt (Bt check) 49.0 50.0 51.3 48.0 48.1 48.0 48.9 49.6 48.0 

Srivilliputhr 

LAM 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Micronaire varied from 4.1 to 4.7 (Table 12). 

Table 12. Micronaire (µg/tex) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

27 




VBCH-1506 BGII 3.0 4.6 4.3 5.4 4.0 4.5 3.1 4.3 4.3 3.9 

ANKUR-5642 BGII 3.8 4.3 4.0 4.7 4.6 3.6 3.8 4.1 4.2 4.0 

Tulasi 7 BGII 3.8 4.6 4.8 4.8 4.3 4.3 4.8 4.6 4.5 4.4 


SBCH 292 3.4 4.5 5.1 5.1 4.7 4.3 4.1 4.7 4.5 4.4 

NSPL-405 BG II 3.4 4.3 4.6 4.6 4.3 4.3 3.5 4.3 4.2 4.1 

ACH 177-2 3.8 4.3 4.5 4.7 4.6 4.6 3.6 4.4 4.3 4.2 


ZCH-50072 3.7 4.7 4.1 4.7 4.4 4.5 3.9 4.3 4.3 4.3 

VBCH-1505 BG II 3.8 5.3 5.0 5.1 4.6 3.8 3.4 4.4 4.8 3.9 

PRCH 505 BG II 3.5 4.4 4.5 4.3 4.4 4.5 4.0 4.3 4.2 4.3 



VCH-603 BG II 3.6 4.1 4.9 4.5 4.7 4.3 3.5 4.4 4.3 4.2 

KCH-707 BG II 3.3 4.7 4.6 4.8 4.5 4.6 4.1 4.5 4.4 4.4 

SP 504 B2 (Dhanno) 3.5 4.2 4.5 4.8 4.5 4.5 3.5 4.4 4.3 4.2 

GK-217 BG II 3.5 4.4 5.1 4.7 4.8 4.6 4.0 4.7 4.4 4.5 



ABCH-1065 3.3 4.2 4.5 4.6 4.2 4.0 3.4 4.1 4.1 3.9 

NCEH-34 3.3 4.2 4.5 5.0 4.2 3.8 3.8 4.3 4.3 3.9 

NAMCOT-612 BG II 3.8 4.3 4.7 4.1 4.3 4.1 3.6 4.2 4.2 4.0 


Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

28 

In general, the fibre strength was better under irrigated conditions as compared to 

rainfed conditions. Overall, the strength ranged between 21.1 and 23.3 g/tex (Table 13). 

Table 13. Bundle Strength (g/tex) in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

Srivilliputhr 




VBCH-1506 BGII 22.2 21.2 22.8 20.4 23.7 22.0 20.8 21.9 21.7 22.2 

ANKUR-5642 BGII 22.1 23.6 23.4 24.2 23.7 24.3 20.9 23.3 23.3 23.0 

Tulasi 7 BGII 22.1 21.8 20.8 22.4 23.3 24.4 21.2 22.4 21.8 23.0 


SBCH 292 21.5 20.6 20.9 20.4 23.4 22.6 19.4 21.4 20.9 21.8 

NSPL-405 BG II 21.7 21.8 20.9 23.0 22.9 23.2 21.6 22.3 21.9 22.6 

ACH 177-2 21.5 20.4 21.0 22.7 23.5 20.2 22.0 21.9 21.4 21.9 


ZCH-50072 20.2 21.7 21.2 21.1 23.2 20.5 21.1 21.4 21.0 21.6 

VBCH-1505 BG II 20.7 20.8 19.8 22.4 23.7 22.9 20.5 21.9 20.9 22.4 

PRCH 505 BG II 22.9 21.6 22.2 22.3 22.3 23.0 22.3 22.4 22.2 22.5 



VCH-603 BG II 20.1 19.7 19.6 19.9 22.2 22.0 21.8 21.1 19.8 22.0 

KCH-707 BG II 21.8 20.8 20.9 22.4 23.1 20.6 20.8 21.6 21.5 21.5 

SP 504 B2 (Dhanno) 21.6 21.1 21.8 21.3 22.6 21.6 22.3 21.9 21.5 22.2 

GK-217 BG II 21.8 21.7 21.0 22.1 22.4 20.4 22.4 21.7 21.7 21.7 



ABCH-1065 22.2 23.0 20.8 22.7 23.3 24.5 20.8 22.4 22.2 22.9 

NCEH-34 21.6 22.1 22.1 20.0 23.3 22.4 22.3 22.0 21.4 22.7 

NAMCOT-612 BG II 20.3 21.4 20.6 21.9 22.6 20.8 19.5 21.1 21.0 21.0 


LAM 

Nandyal 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

ETL Based Entomological Evaluation 

Sucking pests 

29 

Data on sucking pest incidence like Jassids, white fly, thrips and aphids were recorded on 

weekly basis in some centres and the mean data indicated not much difference between 

Bt and non-Bt hybrids (Tables 14-17). 

Table 14. Jassid / plant in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 




VBCH-1506 BGII 3.4 5.8 20.0 1.2 1.8 7.1 4.1 4.3 6.4 5.6 

ANKUR-5642 BGII 2.8 6.4 6.3 1.9 2.3 1.5 3.0 2.3 3.9 2.3 

Tulasi 7 BGII 7.6 6.2 5.8 2.9 1.6 1.7 3.7 2.3 4.8 2.7 


SBCH 292 4.4 6.3 9.2 3.5 2.3 3.3 3.3 3.0 5.1 3.3 

NSPL-405 BG II 10.6 5.6 5.2 3.5 1.5 2.4 3.0 2.3 5.3 2.7 

ACH 177-2 3.2 5.4 9.0 2.1 1.5 1.2 2.7 1.8 4.2 2.0 


ZCH-50072 3.6 6.5 5.2 1.8 1.7 1.2 3.5 2.1 3.7 2.4 

VBCH-1505 BG II 8.8 4.8 12.0 3.8 1.5 1.1 4.0 2.2 6.2 2.6 

PRCH 505 BG II 2.8 7.0 12.7 3.2 1.5 2.6 2.4 2.2 5.4 2.5 



VCH-603 BG II 2.4 6.7 9.5 4.2 1.2 4.3 2.4 2.6 4.8 3.4 

KCH-707 BG II 4.8 6.3 5.8 5.5 1.0 2.1 2.2 1.8 4.7 2.2 

SP 504 B2 (Dhanno) 4.2 6.5 9.8 2.6 1.3 1.2 3.3 1.9 4.9 2.3 

GK-217 BG II 8.6 6.2 6.7 1.4 1.3 1.1 1.9 1.4 4.8 1.5 



ABCH-1065 5.8 6.6 9.7 2.1 1.5 1.7 3.4 2.2 5.1 2.6 

NCEH-34 2.2 6.3 6.5 2.1 2.0 2.3 3.0 2.4 3.8 2.7 

NAMCOT-612 BG II 4.6 6.6 7.8 2.4 1.8 2.9 2.4 2.4 4.6 2.7 


B'gudi 

Coimbatore 

Lam 

Dharwad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Table 15. Whitefly / plant in Set ‘A’ under ETL based protection 

30 

Entry Warangal Coimbatore LAM Overall 

mean 

Mean (I) Mean (RF) 

JK-Indra Bt 5.6 0.2 0.1 2.0 2.9 0.1 


340 – 2 Bt 4.8 0.0 1.3 0.6 2.4 1.3 

VBCH-1506 BGII 4.4 0.1 0.7 0.4 2.3 0.7 

ANKUR-5642 BGII 5.2 0.0 1.1 0.6 2.6 1.1 

Tulasi 7 BGII 4.6 0.0 0.6 0.3 2.3 0.6 

UPLHH-5 Bt 4.2 0.1 0.5 0.3 2.2 0.5 

SBCH 292 5.8 0.0 0.5 0.3 2.9 0.5 

NSPL-405 BG II 5.2 0.1 0.7 0.4 2.6 0.7 

ACH 177-2 4.6 0.1 1.0 0.5 2.3 1.0 

NCS 854 Bt2 3.2 0.0 1.5 0.7 1.6 1.5 

ZCH-50072 3.2 0.0 1.4 0.7 1.6 1.4 

VBCH-1505 BG II 2.8 0.0 1.4 0.7 1.4 1.4 

PRCH 505 BG II 4.4 0.0 0.9 0.4 2.2 0.9 

VICH 5 Bt 5.8 0.0 0.7 0.4 2.9 0.7 


VCH-603 BG II 4.6 0.0 0.7 0.4 2.3 0.7 

KCH-707 BG II 3.4 0.0 0.6 0.3 1.7 0.6 

SP 504 B2 (Dhanno) 3.8 0.0 0.6 0.3 1.9 0.6 

GK-217 BG II 4.4 0.1 0.9 0.5 2.3 0.9 

PCH 2270 Bt 2 4.8 0.0 0.4 0.2 2.4 0.4 

Monsoon Bt 5.2 0.0 1.2 0.6 2.6 1.2 

ABCH-1065 5.8 0.0 0.6 0.3 2.9 0.6 

NCEH-34 4.4 0.0 0.2 0.1 2.2 0.2 

NAMCOT-612 BG II 6.2 0.1 0.6 0.4 3.2 0.6 


!" #

Table 16. Thrips / plant in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

31 




VBCH-1506 BGII 22.8 2.9 5.2 13.2 0.2 0.0 7.4 2.5 8.8 3.7 

ANKUR-5642 BGII 8.4 4.2 1.3 15.2 0.1 0.5 11.0 3.9 5.8 5.8 

Tulasi 7 BGII 18.2 2.5 3.8 11.6 0.4 0.5 10.8 3.9 7.3 5.6 


SBCH 292 36.6 2.5 2.5 7.1 0.2 0.4 10.0 3.5 9.8 5.2 

NSPL-405 BG II 18.8 3.2 2.7 9.7 0.2 1.0 9.4 3.5 6.9 5.2 

ACH 177-2 8.2 3.9 3.2 9.4 0.2 0.7 8.7 3.2 5.0 4.7 


ZCH-50072 12.8 3.7 2.3 15.5 0.3 0.4 11.5 4.1 6.9 6.0 

VBCH-1505 BG II 20.6 4.4 3.7 7.4 0.4 0.7 10.6 3.9 7.3 5.7 

PRCH 505 BG II 14.2 3.0 2.2 8.4 0.1 0.2 11.7 4.0 5.6 6.0 



VCH-603 BG II 8.4 4.1 2.0 11.0 0.1 0.3 9.8 3.4 5.1 5.0 

KCH-707 BG II 32.6 3.1 1.8 12.5 0.1 0.0 9.9 3.3 10.0 4.9 

SP 504 B2 (Dhanno) 18.2 2.6 1.8 6.0 0.0 0.2 6.0 2.1 5.7 3.1 

GK-217 BG II 8.4 2.7 2.8 15.9 0.1 0.6 17.4 6.0 6.0 9.0 



ABCH-1065 20.4 3.1 2.3 5.9 0.1 1.0 14.0 5.0 6.4 7.5 

NCEH-34 30.4 2.7 2.8 11.1 0.0 0.3 10.5 3.6 9.4 5.4 

NAMCOT-612 BG II 18.8 3.7 2.0 8.2 0.1 0.0 12.1 4.1 6.5 6.1 


B'gudi 

Coim batore 

LAM 

Dharwad 

Overall m ean 

!" # 

Mean (I) 

Mean (RF)

Table 17. Aphid / plant in Set ‘A’ under ETL based protection 

Entry 

B'gudi 

Coimbatore 

32 

JK-Indra Bt 1.9 8.7 2.1 0.8 3.4 5.3 1.5 

Bunny (Non-Bt check) 3.1 10.2 4.3 1.8 5.4 6.6 3.1 

340 – 2 Bt 2.2 9.8 3.5 0.8 4.7 6.0 2.2 

VBCH-1506 BGII 3.2 16.3 2.7 1.4 6.8 9.7 2.1 

ANKUR-5642 BGII 3.1 14.0 2.1 1.5 5.9 8.5 1.8 

Tulasi 7 BGII 8.6 12.2 9.7 0.5 7.5 10.4 5.1 

UPLHH-5 Bt 2.2 14.0 4.1 0.4 6.2 8.1 2.3 

SBCH 292 2.2 14.9 1.4 0.5 5.6 8.6 1.0 

NSPL-405 BG II 3.7 18.9 3.1 0.2 7.4 11.3 1.7 

ACH 177-2 4.3 13.1 2.9 0.6 5.5 8.7 1.8 

NCS 854 Bt2 2.0 8.1 5.6 1.4 5.0 5.0 3.5 

ZCH-50072 4.2 9.0 2.8 1.0 4.3 6.6 1.9 

VBCH-1505 BG II 1.6 10.2 1.3 1.0 4.2 5.9 1.1 

PRCH 505 BG II 1.6 16.5 6.8 0.7 8.0 9.0 3.8 

VICH 5 Bt 2.3 16.7 6.7 1.2 8.2 9.5 4.0 

LC (Hybrid Check) 5.2 12.7 3.2 0.7 5.5 9.0 2.0 

VCH-603 BG II 3.1 10.1 2.9 0.0 4.3 6.6 1.5 

KCH-707 BG II 2.2 16.3 8.8 0.7 8.6 9.3 4.8 

SP 504 B2 (Dhanno) 1.4 10.5 5.1 0.9 5.5 6.0 3.0 

GK-217 BG II 2.0 15.0 7.3 1.2 7.8 8.5 4.3 

PCH 2270 Bt 2 2.0 13.6 4.2 1.2 6.3 7.8 2.7 

Monsoon Bt 2.3 10.3 3.5 0.6 4.8 6.3 2.1 

ABCH-1065 2.0 9.7 2.9 0.7 4.4 5.8 1.8 

NCEH-34 1.7 11.7 2.5 0.9 5.0 6.7 1.7 

NAMCOT-612 BG II 3.6 8.3 2.3 0.5 3.7 6.0 1.4 

RCH 2 Bt (Bt check) 3.0 9.5 1.9 0.1 3.8 6.2 1.0 

LAM 

Dharwad 

Overall mean 

Mean (I) 

!" # 

Mean (RF)

Percent Square damage 

33 

The square damage was comparatively minimum in Bt test entries than the non-Bt 

local checks. Among the test entries, ACH 177-2, ZCH 50072, PCH 2270 Bt 2, 

NAMCOT 612 BG II, PRCH 505 BG II recorded the minimum percentage of square 

damage than all other entries in most of the centres tested ( Table 18). 

Table 18. % Square Damage by Bollworm in Set ‘A’ under ETL based protection 

Entry 

Warangal 

Raichur 

Coimbatore 

JK-Indra Bt 0.0 1.5 0.3 0.0 4.7 1.3 0.6 2.4 

Bunny (Non-Bt check) 0.0 8.0 2.5 0.0 1.7 2.4 3.5 0.9 

340 – 2 Bt 0.0 1.1 0.7 0.0 5.0 1.3 0.6 2.5 

VBCH-1506 BGII 0.0 2.4 0.6 0.0 5.7 1.7 1.0 2.8 

ANKUR-5642 BGII 0.0 0.0 0.2 0.0 5.4 1.1 0.1 2.7 

Tulasi 7 BGII 0.0 0.8 0.0 0.0 5.4 1.2 0.3 2.7 

UPLHH-5 Bt 1.5 0.0 0.1 0.0 6.1 1.5 0.5 3.0 

SBCH 292 0.0 0.4 0.0 0.0 4.1 0.9 0.1 2.1 

NSPL-405 BG II 0.0 0.5 0.2 0.0 4.0 0.9 0.2 2.0 

ACH 177-2 1.2 0.8 0.0 0.0 0.9 0.6 0.7 0.4 

NCS 854 Bt2 0.0 0.3 0.0 0.0 8.0 1.7 0.1 4.0 

ZCH-50072 0.0 0.0 0.0 0.0 2.9 0.6 0.0 1.5 

VBCH-1505 BG II 0.0 0.1 0.0 0.0 9.2 1.9 0.0 4.6 

PRCH 505 BG II 0.0 0.0 0.2 0.0 3.3 0.7 0.1 1.6 

VICH 5 Bt 0.0 0.2 0.0 0.0 6.0 1.2 0.1 3.0 

LC (Hybrid Check) 3.1 15.2 0.4 0.0 3.3 4.4 6.3 1.6 

VCH-603 BG II 0.0 0.0 0.0 0.0 11.7 2.3 0.0 5.9 

KCH-707 BG II 0.0 0.0 0.0 0.0 8.4 1.7 0.0 4.2 

SP 504 B2 (Dhanno) 0.0 0.0 0.2 0.0 3.4 0.7 0.1 1.7 

GK-217 BG II 0.0 0.0 0.0 0.0 7.2 1.4 0.0 3.6 

PCH 2270 Bt 2 1.1 0.0 0.0 0.0 2.3 0.7 0.4 1.1 

Monsoon Bt 2.6 0.0 0.0 0.0 8.1 2.1 0.9 4.1 

ABCH-1065 0.0 0.0 0.0 0.0 6.0 1.2 0.0 3.0 

NCEH-34 0.0 0.3 0.0 0.0 4.3 0.9 0.1 2.1 

NAMCOT-612 BG II 0.0 0.0 0.0 0.0 2.7 0.5 0.0 1.3 

RCH 2 Bt (Bt check) 0.8 0.0 0.0 0.0 4.5 1.1 0.3 2.3 

LAM 

Dharwad 

Overall mean 

Mean (I) 

!" # 

Mean (RF)

Pink boll worm damage 

34 

Very less incidence of Pink bollworm and damage in green bolls was recorded in 

most of the hybrids except ZCH 50072 which had 0.4 larvae / 20 green bolls and 2.1 % 

damage in green bolls (Table 19). 

Table 19. Pink Bollworm in Set ‘A’ under ETL based protection 

Larvae / 20 green bolls 

Entry 

Coimb 

atore 

LAM 

Overall 

mean 

Waran 

gal 

Coimbat 

ore 

LAM 

Overall 

mean 




VBCH-1506 BGII 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

ANKUR-5642 BGII 0.2 0.0 0.1 0.0 0.8 0.0 0.4 

Tulasi 7 BGII 0.0 0.0 0.0 0.6 0.0 0.0 0.0 


SBCH 292 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

NSPL-405 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

ACH 177-2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


ZCH-50072 0.8 0.0 0.4 0.9 4.2 0.0 2.1 

VBCH-1505 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

PRCH 505 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 



VCH-603 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

KCH-707 BG II 0.2 0.0 0.1 0.9 0.8 0.0 0.4 

SP 504 B2 (Dhanno) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

GK-217 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 



ABCH-1065 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

NCEH-34 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

NAMCOT-612 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


!" #

35 

In general, Open boll damage in terms of both boll basis and locule basis was less 

in the Bt test entries as compared to non-Bt checks (Table 20). 

Table 20. Open boll damage (%) in Set ‘A’ under ETL based protection 

Entry 

Siruguppa 

B'gudi 

Coimbatore 

LAM 

JK-Indra Bt 7.2 6.6 1.0 0.0 3.7 4.6 10.1 2.2 0.0 10.9 5.6 

Bunny (Non-Bt check) 11.0 9.8 6.0 0.0 6.7 6.6 13.0 1.7 0.0 18.6 8.0 

340 – 2 Bt 12.2 6.6 0.7 0.0 4.9 4.0 11.9 0.0 0.0 5.9 4.3 

VBCH-1506 BGII 12.3 1.7 0.3 0.0 3.6 4.6 5.9 0.0 0.0 5.6 3.2 

ANKUR-5642 BGII 12.2 2.4 0.0 0.0 3.6 2.2 14.4 0.2 0.0 8.1 5.0 

Tulasi 7 BGII 12.4 4.5 0.0 0.0 4.2 10.9 11.3 0.0 0.0 5.8 5.6 

UPLHH-5 Bt 7.8 4.8 2.7 0.0 3.8 2.4 14.7 0.0 0.0 11.5 5.7 

SBCH 292 12.4 1.5 4.7 0.0 4.7 2.3 9.6 0.0 0.0 16.4 5.7 

NSPL-405 BG II 12.6 0.9 0.0 0.0 3.4 6.2 12.4 0.0 0.0 15.5 6.8 

ACH 177-2 9.1 4.0 1.0 0.0 3.5 3.7 13.4 0.0 0.0 12.6 5.9 

NCS 854 Bt2 12.2 3.5 4.2 0.0 5.0 6.0 14.2 0.0 0.0 13.5 6.7 

ZCH-50072 12.7 4.6 1.8 0.0 4.8 5.8 10.1 1.7 0.0 5.7 4.7 

VBCH-1505 BG II 7.2 0.8 1.5 0.0 2.4 6.4 12.4 0.0 0.0 15.3 6.8 

PRCH 505 BG II 12.0 5.9 1.0 0.0 4.7 3.7 16.9 0.0 0.0 7.2 5.6 

VICH 5 Bt 12.2 0.8 0.3 0.0 3.3 7.4 10.9 0.0 0.0 16.0 6.9 

LC (Hybrid Check) 12.4 0.8 0.3 0.0 3.4 13.1 17.7 0.0 0.0 17.5 9.7 

VCH-603 BG II 13.6 0.0 0.0 0.0 3.4 7.1 11.0 0.0 0.0 5.6 4.7 

KCH-707 BG II 12.1 3.6 0.0 0.0 3.9 3.1 18.2 0.2 0.0 10.7 6.5 

SP 504 B2 (Dhanno) 8.3 0.9 0.0 0.0 2.3 10.7 7.4 0.0 0.0 11.0 5.8 

GK-217 BG II 13.2 5.1 1.7 0.0 5.0 6.1 10.7 0.0 0.0 10.1 5.4 

PCH 2270 Bt 2 11.5 3.1 1.7 0.0 4.0 2.5 9.9 0.5 0.0 14.0 5.4 

Monsoon Bt 5.1 2.6 0.7 0.0 2.1 10.8 10.7 0.0 0.0 20.8 8.5 

ABCH-1065 13.2 2.4 1.3 0.0 4.2 5.7 13.6 0.0 0.0 10.8 6.0 

NCEH-34 13.0 1.7 0.3 0.0 3.7 5.9 11.8 0.0 0.0 18.6 7.3 

NAMCOT-612 BG II 13.0 4.0 0.7 0.0 4.4 5.8 13.7 0.0 0.0 11.3 6.2 

RCH 2 Bt (Bt check) 5.9 4.0 0.0 0.0 2.5 5.0 5.8 0.0 0.0 11.2 4.4 

Overall mean 

Siruguppa 

B'gudi 

Coimbatore 

LAM 

!" # 

Dharwad 

Overall mean

36 

EVALUATION UNDER UNPROTECTED CONDITIONS 

Germination and Plant Stand 

Good germination and plant stand was maintained under unprotected condition in 

both irrigated and rainfed trials (Table 21). 

Table 21. Germination and Plant Stand under Unprotected condition 

Entry 

Coimbatore 

Germination (%) 

Srivilliputhr 

LAM 

Overall mean 

Stand at harvest (No. of 

plants) 




VBCH-1506 BGII 50.0 53.3 74.1 59.1 15.0 23.3 19.2 

ANKUR-5642 BGII 73.0 86.7 85.6 81.8 22.0 25.3 23.7 

Tulasi 7 BGII 87.0 80.0 100.0 89.0 26.0 26.3 26.2 


SBCH 292 90.0 78.3 88.3 85.5 27.0 23.3 25.2 

NSPL-405 BG II 83.0 81.7 78.8 81.2 25.0 24.3 24.7 

ACH 177-2 93.0 86.7 85.3 88.3 28.0 24.6 26.3 


ZCH-50072 83.0 80.0 91.9 85.0 25.0 22.6 23.8 

VBCH-1505 BG II 63.0 75.0 87.8 75.3 19.0 26.3 22.7 

PRCH 505 BG II 80.0 88.3 95.9 88.1 24.0 26.6 25.3 



VCH-603 BG II 90.0 71.7 85.7 82.5 27.0 24.0 25.5 

KCH-707 BG II 53.0 81.7 85.9 73.5 16.0 23.0 19.5 

SP 504 B2 (Dhanno) 83.0 56.7 81.8 73.8 25.0 24.0 24.5 

GK-217 BG II 87.0 86.7 79.6 84.4 26.0 25.3 25.7 



ABCH-1065 83.0 83.3 92.1 86.1 25.0 26.3 25.7 

NCEH-34 83.0 81.7 85.6 83.4 25.0 25.6 25.3 

NAMCOT-612 BG II 77.0 65.0 90.6 77.5 23.0 27.6 25.3 


Coimbatore 

LAM 

Overall mean 

!" #

Open boll damage 

37 

The mean percentage of open damage due to bollworm on both boll and locule 

basis was low at Coimbatore and at Lam whereas, it was high at Srivilliputhur. Under 

unprotected condition, some Bt test hybrids like VBCH 1505 BG II, VBCH 1506 BG II, 

VCH 603 BG II and Monsoon Bt exhibited more open boll damage as compared to non 

Bt check hybrids (Table 22). 

Table 22. Open Boll Damage – Boll basis (%) under unprotected condition 

Entry 

Coimbatore 

Srivilliputhr 

Boll basis Locule Basis 

LAM 

Aruppukottai 

JK-Indra Bt 0.0 7.6 0.0 5.9 3.4 0.0 7.6 0.0 5.4 5.5 3.7 



VBCH-1506 BGII 1.5 20.9 0.0 7.0 7.3 0.0 8.8 0.0 4.7 6.6 4.0 

ANKUR-5642 BGII 0.0 5.2 0.0 6.5 2.9 0.0 8.9 0.0 5.7 6.1 4.1 

Tulasi 7 BGII 0.0 5.2 0.0 4.0 2.3 0.0 7.6 0.0 9.2 3.6 4.1 


SBCH 292 0.0 8.3 0.0 4.7 3.3 0.0 8.8 0.0 10.4 4.3 4.7 

NSPL-405 BG II 1.0 6.1 0.0 4.3 2.8 0.0 10.0 0.0 14.3 3.8 5.6 

ACH 177-2 0.0 5.5 0.0 7.1 3.2 0.0 6.3 0.0 13.9 3.7 4.8 

NCS 854 Bt2 1.5 4.9 0.0 2.6 2.3 0.0 8.8 0.0 8.3 2.2 3.9 

ZCH-50072 2.5 6.2 0.0 5.4 3.5 0.0 7.5 0.0 13.3 5.1 5.2 

VBCH-1505 BG II 0.0 25.4 0.0 2.9 7.1 0.0 10.0 0.0 13.9 2.5 5.3 

PRCH 505 BG II 0.0 8.0 0.0 2.8 2.7 0.0 8.8 0.0 11.7 2.5 4.6 



VCH-603 BG II 0.0 22.0 0.0 1.4 5.9 0.0 12.6 0.0 11.9 1.1 5.1 

KCH-707 BG II 0.0 5.4 0.0 6.8 3.1 0.0 8.8 0.0 18.5 6.5 6.8 

SP 504 B2 (Dhanno) 0.0 9.0 0.0 3.9 3.2 0.0 10.1 0.0 5.6 3.5 3.8 

GK-217 BG II 0.0 8.9 0.0 4.1 3.3 0.0 6.4 0.0 11.0 3.7 4.2 


Monsoon Bt 1.0 19.3 0.0 5.4 6.4 0.0 11.3 0.0 20.0 5.1 7.3 

ABCH-1065 0.0 8.9 0.0 3.3 3.0 0.0 5.0 0.0 4.9 2.9 2.6 

NCEH-34 0.0 18.5 0.0 3.7 5.5 0.0 13.8 0.0 9.3 3.2 5.2 

NAMCOT-612 BG II 0.0 8.1 0.0 5.3 3.4 0.0 8.8 0.0 5.7 4.7 3.8 


Overall mean 

Coimbatore 

Srivilliputhr 

LAM 

Dharwad 

Aruppukottai 

!" # 

Overall mean

Mean Seed Cotton Yield 

38 

Under irrigated unprotected conditions, out of 23 Bt test hybrids evaluated, six 

test Bt hybrid entries recorded higher seed cotton yield ranging from 2057 to 2137 Kg/ha 

as compared to the Bt Check hybrid RCH 2 Bt, which recorded a mean seed cotton yield 

of 1846 kg/ha (Table 23). 

Table 23. Seed cotton yield (kg/ha) in irrigated locations under unprotected conditions 

Entry Coimbatore Srivilliputhr Mean (I) 

% Inc. over 


ACH 177-2 1327 2946 2137 16 

Monsoon Bt 1127 3128 2128 15 

UPLHH-5 Bt 972 3222 2097 14 

VICH 5 Bt 725 3440 2083 13 

JK-Indra Bt 1466 2685 2076 12 

SP 504 B2 (Dhanno) 1219 2894 2057 11 

RCH 2 Bt (Bt check) 1049 2642 1846 0 

PCH 2270 Bt 2 1219 2444 1832 -1 

GK-217 BG II 1096 2504 1800 -2 

Bunny (Non-Bt check) 957 2625 1791 -3 

ANKUR-5642 BGII 687 2876 1782 -3 

Tulasi 7 BGII 1111 2426 1769 -4 

NCEH-34 849 2564 1707 -8 

NCS 854 Bt2 1281 2070 1676 -9 

PRCH 505 BG II 1265 1889 1577 -15 

ZCH-50072 694 2451 1573 -15 

NSPL-405 BG II 849 2255 1552 -16 

VBCH-1506 BGII 191 2868 1530 -17 

LC (Hybrid Check) 1065 1898 1482 -20 

KCH-707 BG II 741 2054 1398 -24 

VBCH-1505 BG II 1250 -- 1250 -32 

SBCH 292 756 1680 1218 -34 

340 – 2 Bt 926 1490 1208 -35 

NAMCOT-612 BG II 1065 1308 1187 -36 

VCH-603 BG II 756 1058 907 -51 

ABCH-1065 818 --- 818 -56 

CD @ 5% 590 

CV % 6 

!" #

Rainfed 

39 

Among the 23 Bt test hybrids evaluated under rainfed situation, several hybrids 

exhibited superiority in yield (11 to 101 %) over the Bt check hybrid (Table 24). 

Table 24. Seed cotton yield (kg/ha) in rainfed locations under unprotected conditions 

Entry LAM 

% Inc. over 

Aruppukottai Mean (RF) 


340 – 2 Bt 2506 1180 1843 101 

LC (Hybrid Check) 1755 1485 1620 76 

ACH 177-2 1718 1417 1568 71 

GK-217 BG II 1580 1494 1537 67 

Tulasi 7 BGII 1478 1540 1509 64 

Bunny (Non-Bt check) 1801 1192 1497 63 

ABCH-1065 1224 1575 1400 52 

NSPL-405 BG II 1409 1351 1380 50 

NCS 854 Bt2 1409 1283 1346 46 

JK-Indra Bt 1489 1164 1327 44 


SBCH 292 1325 1238 1282 39 

VCH-603 BG II 1178 1367 1273 38 

PCH 2270 Bt 2 1441 1078 1260 37 

PRCH 505 BG II 1097 1416 1257 37 

NCEH-34 1270 1203 1237 35 

Monsoon Bt 1339 1118 1229 34 

SP 504 B2 (Dhanno) 1233 1217 1225 33 


ZCH-50072 910 1335 1123 22 

KCH-707 BG II 956 1277 1117 21 

NAMCOT-612 BG II 947 1181 1064 16 

ANKUR-5642 BGII 970 1069 1020 11 


VBCH-1505 BG II 369 1419 894 -3 

VBCH-1506 BGII 249 1056 653 -29 

CD @ 5% 912 

CV % 29 

!" #

40 

PATHOLOGICAL EVALUATION 

The pathological observations like incidence of major diseases Bacterial leaf blight, 

alternaria leaf spot, grey mildew, myrothecium leaf spot and other diseases like 

Helminthosporium leaf spot, Colletotrichum boll rot were recorded under natural 

conditions and are presented centre-wise. 

Lam, Guntur: In general, bacterial blight and grey mildew were the diseases that were 

noticed in the test and check hybrids. Most of the test hybrids recorded moderate 

incidence of the diseases with the few like ZCH 50072, 340-2 Bt, NSPL 405 BG II, 

NCEH 34 recording lesser incidence of the diseases. 

Warangal: Mild incidence of bacterial blight and grey mildew were noticed with Bt and 

non Bt hybrids recording equally less level of incidence. However, Colletotrichum boll 

rot could be noticed at less than ten per cent in bolls of both Bt and non Bt hybrids. 

Similarly, mild incidence of Tobacco Streak Virus with chlorotic mottles could be 

noticed in both Bt and non Bt hybrids. 

Coimbatore: No incidence of Alternaria leaf spot, bacterial blight or grey mildew could 

be noticed among the Bt hybrids tested. However, very less incidence of seedling rot 

could be seen with incidence grade being one in most of the hybrids with appearance 

showing 30 days after sowing in all test and check hybrids. 

Srivilliputhur: Initiation of bacterial blight disease was noticed in infestor row of 

susceptible check, while mild incidence with grade I being noticed in certain test hybrids 

and check hybrids from 90 days after sowing stage. Most of the test hybrids did not show 

any disease symptom due to Myrothecium leaf spot, while very few hybrids like JK Indra 

Bt, Bunny and Ankur 5642 BG II, UPLHH 5 Bt, PRCH 505 BG II, local check hybrid 

registered mild incidence at later stages of growth. 

Aruppukottai: None of the test entries showed the incidence of bacterial leaf blight, 

grey mildew and Cercospora leaf spot upto 45 days after sowing. Lower level of disease 

incidence of Cercospora and grey mildew was noticed after 120 days after sowing in 

most of the hybrids including check hybrids. 

Beemarayangudi: Alternaria leaf spot, bacterial blight and rust were noticed only during 

later stages of growth with both Bt test hybrids and check hybrids reporting similar levels 

of grade of infection. Leaf reddening has also been observed in most of the Bt test 

hybrids at 150 days after sowing stage. 

!" #

Germination and Final Plant Stand 

41 

TRIAL – SET ‘B’ 

Both germination and plant stand at harvest was satisfactory in all the entries except 

GK-205 BG II under both irrigated and rainfed situations (Table 25). 

Table 25. Germination (%) and Plant Stand in Set ‘B’ under ETL based protection 

Entry 

Coimbatore 

Germination % 

Aruppukottai 

Overall mean 

Stand at harvest (number of plants) 

NCEH- 29 92.8 94.0 93.4 57.0 48.7 50.3 59.7 53.9 

ABCH-1020 89.4 94.0 91.7 58.0 48.3 49.7 59.7 53.9 

KDCHH 9632 BG II 83.9 100.0 91.9 59.0 47.7 49.7 59.0 53.8 


PRCH 504 BG II 90.0 99.0 94.5 57.0 48.3 53.3 60.0 54.7 

NSPL -999 BG II 91.7 96.0 93.8 59.0 47.0 55.0 58.3 54.8 


SBCH 284 91.7 95.0 93.3 59.0 49.3 52.3 59.0 54.9 


KCH-135 Bt II 86.7 100.0 93.3 59.0 47.7 48.3 59.0 53.5 

VCH-602 BG II 80.6 96.0 88.3 57.0 46.7 48.3 58.7 52.7 


Tulasi 118 BGII 81.1 92.0 86.6 60.0 47.7 52.0 59.0 54.7 


GK-205 BG II 71.7 46.0 58.8 54.0 36.7 44.0 59.7 48.6 


ANKUR-10122 BGII 85.6 98.0 91.8 60.0 45.3 48.7 59.0 53.3 

JKCH-2245 Bt 93.3 90.0 91.7 60.0 48.0 52.3 59.7 55.0 


ACH 155-2 94.4 99.0 96.7 60.0 48.3 56.7 60.0 56.3 

NCS 207 Bt 2 83.9 93.0 88.4 59.0 47.0 53.7 59.7 54.8 

NAMCOT-607 BG II 95.0 98.0 96.5 59.0 46.7 52.0 59.0 54.2 

SP 1037 B2 92.2 96.0 94.1 58.0 46.0 55.7 59.3 54.7 

GBCH 04 92.8 92.0 92.4 59.0 46.7 55.7 60.0 55.3 

MLCH- 318 BGII 90.6 94.0 92.3 57.0 47.0 54.3 60.0 54.6 

RCH- 596 BGII 85.6 93.0 89.3 59.0 48.7 50.0 59.0 54.2 

Siruguppa 

B'gudi 

Coimbatore 

LAM 

!" # 

Overall mean

Boll Weight 

42 

Mean boll weight of the Bt hybrids ranged from 4.3 to 5.6 g over different locations 

(Table 26). Among all the hybrids tested, the highest boll weight was recorded in 

UPLHH 12 Bt (5.6g). 

Table 26. Boll weight (g) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

NCEH- 29 4.1 5.3 5.9 5.7 5.5 5.7 3.8 4.9 6.0 3.6 5.0 5.3 4.8 

ABCH-1020 4.5 5.1 5.0 6.5 5.7 5.7 3.7 4.3 6.0 3.5 5.0 5.4 4.7 

KDCHH 9632 BG II 4.5 5.4 6.0 5.9 6.0 4.9 4.7 4.9 6.0 3.9 5.2 5.6 4.9 


PRCH 504 BG II 4.3 5.9 5.7 6.3 5.9 6.5 3.8 4.9 6.0 3.6 5.3 5.6 5.0 

NSPL -999 BG II 4.9 5.6 5.7 6.8 5.8 5.0 3.5 6.3 6.3 3.8 5.4 5.8 5.0 


SBCH 284 4.4 5.4 5.7 5.8 6.2 5.4 4.4 4.6 5.8 3.7 5.1 5.5 4.8 


KCH-135 Bt II 4.0 5.1 5.5 6.4 5.0 6.1 3.8 4.3 5.4 3.6 4.9 5.2 4.6 

VCH-602 BG II 4.3 5.8 5.8 6.5 5.9 5.5 3.7 4.9 6.3 3.7 5.2 5.7 4.8 


Tulasi 118 BGII 4.7 5.7 5.9 6.3 5.5 4.6 3.6 6.1 6.0 4.0 5.2 5.6 4.9 


GK-205 BG II 3.5 4.5 4.9 5.9 4.6 6.2 3.6 3.4 5.3 3.8 4.6 4.7 4.4 


ANKUR-10122 BGII 4.5 5.4 5.0 5.8 5.2 5.5 3.5 5.2 5.3 3.6 4.9 5.2 4.6 

JKCH-2245 Bt 4.3 4.9 5.3 5.5 5.4 6.0 3.2 4.3 5.1 3.0 4.7 5.1 4.3 


ACH 155-2 4.5 5.1 5.0 6.4 5.1 5.2 3.6 5.2 5.4 3.5 4.9 5.2 4.6 

NCS 207 Bt 2 5.8 6.0 6.1 6.7 6.4 5.2 3.7 5.3 5.8 3.6 5.5 6.2 4.7 

NAMCOT-607 BG II 3.8 4.5 4.4 4.9 5.5 5.2 3.3 3.5 4.8 3.2 4.3 4.6 4.0 

SP 1037 B2 4.5 5.1 5.7 6.2 6.0 5.2 3.1 4.8 5.7 3.7 5.0 5.5 4.5 

GBCH 04 4.1 5.7 5.8 6.3 6.0 4.6 3.8 4.6 5.6 3.3 5.0 5.6 4.4 

MLCH- 318 BGII 3.7 4.6 3.9 6.9 4.9 6.0 3.2 4.2 4.6 3.1 4.5 4.8 4.2 

RCH- 596 BGII 4.7 5.4 5.6 6.5 5.5 4.6 3.1 4.9 5.8 3.3 5.0 5.5 4.4 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Ginning Outturn (%) 

The overall ginning outturn ranged from 32.8 to 38.1 % (table 27). 

Table 27. Ginning outturn in Set ‘B’ under ETL based protection 

Entry 

W arang al 

S iru gu pp a 

Raich ur 

Coim b ato re 

43 

S rivilliputh r 

NCEH- 29 31.3 32.7 35.0 30.3 35.4 34.2 34.0 31.0 35.1 35.1 33.4 32.9 33.9 

ABCH-1020 28.9 35.1 34.0 30.2 35.7 34.3 30.0 29.0 35.1 35.8 32.8 32.8 32.8 

KDCHH 9632 BG II 31.9 32.3 36.0 31.5 35.8 34.8 30.0 32.0 37.9 37.9 34.0 33.5 34.5 


PRCH 504 BG II 36.4 31.2 36.0 33.9 37.2 34.0 32.0 36.0 37.8 38.0 35.2 34.9 35.5 

NSPL -999 BG II 34.1 34.6 38.0 34.1 37.4 35.0 34.0 36.0 37.8 37.1 35.8 35.6 36.0 


SBCH 284 33.9 36.6 39.0 37.4 39.0 34.0 32.0 33.0 39.7 32.5 35.7 37.2 34.2 



VCH-602 BG II 38.3 37.5 42.0 35.5 36.7 35.1 38.0 38.0 38.7 34.0 37.4 38.0 36.8 


Tulasi 118 BGII 37.7 35.5 39.0 35.5 35.1 37.1 32.0 43.0 37.3 36.5 36.9 36.6 37.2 


GK-205 BG II 38.4 35.4 40.0 33.3 37.1 35.9 35.0 42.0 35.7 33.5 36.6 36.8 36.4 


ANKUR-10122 BGII 32.2 34.1 38.0 32.9 36.0 35.3 32.0 30.0 36.3 33.3 34.0 34.6 33.4 



ACH 155-2 34.7 36.8 40.0 34.5 35.5 36.0 34.0 36.0 36.9 37.7 36.2 36.3 36.1 


NAMCOT-607 BG II 35.0 38.1 39.0 35.9 36.7 34.6 34.0 34.0 39.3 33.0 36.0 36.9 35.0 

SP 1037 B2 36.7 36.3 36.0 33.5 37.3 35.0 35.0 38.0 38.3 33.2 35.9 36.0 35.9 

GBCH 04 40.3 35.9 37.0 33.9 35.8 34.9 34.0 43.0 39.1 36.0 37.0 36.6 37.4 

MLCH- 318 BGII 36.1 34.6 36.0 33.9 37.4 34.4 33.0 37.0 37.7 34.4 35.4 35.6 35.3 

RCH- 596 BGII 38.5 33.0 35.0 30.3 35.6 36.0 29.0 41.0 34.4 33.2 34.6 34.5 34.7 

L AM 

Nand yal 

Ad ilabad 

Dh arw ad 

Aru pp ukottai 

O verall m ean 

!" # 

M ean (I) 

M ean (RF )

Lint Index 

44 

The lint index varied from 5.5 g (JKCH 2245 Bt and MLCH 318 BG II) to 6.8 g 

(VCH 602 BG II) in Set ‘B’ (Table 28). 

Table 28. Lint Index (g) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

NCEH- 29 4.6 5.4 6.8 5.5 6.9 6.0 6.7 5.1 6.5 5.1 5.9 5.8 5.9 

ABCH-1020 4.7 6.2 6.8 5.7 8.2 5.7 6.3 4.8 6.5 6.7 6.2 6.3 6.0 

KDCHH 9632 BG II 5.1 5.6 6.9 5.9 6.7 5.3 5.4 4.4 7.3 7.0 6.0 6.1 5.9 


PRCH 504 BG II 4.5 5.7 7.0 6.3 6.6 5.2 6.3 4.6 6.7 4.8 5.8 6.0 5.5 

NSPL -999 BG II 4.7 5.8 7.3 6.8 6.9 5.4 6.3 5.3 7.3 7.9 6.4 6.3 6.4 


SBCH 284 4.8 6.1 7.5 6.9 7.9 4.8 6.4 4.8 7.3 4.6 6.1 6.6 5.6 



VCH-602 BG II 5.5 7.0 8.9 7.8 7.4 5.7 6.6 5.1 7.6 6.1 6.8 7.3 6.2 


Tulasi 118 BGII 5.2 6.3 7.1 6.6 7.6 6.0 4.7 5.7 7.1 5.7 6.2 6.5 5.8 


GK-205 BG II 4.8 6.0 7.6 7.0 7.4 5.7 6.6 5.3 6.7 5.1 6.2 6.6 5.9 


ANKUR-10122 BGII 3.7 5.8 6.9 6.3 6.4 5.4 6.5 3.7 6.3 4.9 5.6 5.8 5.4 



ACH 155-2 4.5 5.8 6.5 6.5 6.5 5.3 6.7 5.2 6.4 7.2 6.1 6.0 6.2 


NAMCOT-607 BG II 5.2 5.5 7.2 6.3 6.4 5.8 5.5 3.4 6.5 5.3 5.7 6.1 5.3 

SP 1037 B2 4.8 6.0 6.4 6.6 7.9 5.2 6.4 4.9 7.5 4.5 6.0 6.3 5.7 

GBCH 04 4.4 6.5 6.6 6.5 7.0 4.9 6.6 5.0 7.1 6.1 6.1 6.2 5.9 

MLCH- 318 BGII 4.5 5.3 5.6 6.4 6.2 5.1 5.4 4.4 6.1 5.7 5.5 5.6 5.3 

RCH- 596 BGII 5.0 6.2 7.3 6.3 7.1 5.5 6.4 5.5 6.3 5.3 6.1 6.4 5.8 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

Seed Index 

The seed index ranged between 9.7 and 12.3 g (Table 29) in Set ‘B’. 

Table 29. Seed Index (g) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

S iruguppa 

Raichur 

Coim batore 

45 

S rivilliputhr 

NCEH- 29 10.2 11.2 12.7 12.6 12.0 12.6 12.8 11.1 12.0 9.9 11.7 11.7 11.7 

ABCH-1020 11.6 11.5 12.8 13.1 13.1 11.9 12.4 11.6 12.0 12.5 12.3 12.4 12.1 

KDCHH 9632 BG II 10.8 11.6 12.3 13.0 11.9 10.2 10.7 8.9 12.0 11.9 11.3 11.9 10.7 


PRCH 504 BG II 7.8 12.5 12.4 12.4 10.9 8.7 10.3 8.0 11.0 8.1 10.2 11.2 9.2 

NSPL -999 BG II 9.0 11.0 11.8 13.1 12.1 9.4 12.1 9.1 12.0 13.3 11.3 11.4 11.2 


SBCH 284 9.3 10.5 11.8 11.6 12.2 10.2 12.7 9.5 11.0 10.0 10.9 11.1 10.7 



VCH-602 BG II 8.8 11.7 12.3 14.2 12.2 10.5 10.5 8.0 12.0 12.3 11.3 11.8 10.7 


Tulasi 118 BGII 8.7 11.5 11.2 12.0 12.8 10.3 10.3 7.5 12.0 9.9 10.6 11.2 10.0 


GK-205 BG II 7.8 10.8 11.4 14.0 11.9 11.9 10.5 7.2 12.0 10.5 10.8 11.2 10.4 


ANKUR-10122 BGII 7.8 11.3 11.3 12.9 11.5 10.2 12.5 8.6 11.0 10.3 10.7 10.9 10.5 



ACH 155-2 8.5 10.0 9.5 12.2 11.0 9.2 10.5 6.5 11.0 11.1 10.0 10.3 9.7 


NAMCOT-607 BG II 9.6 8.9 11.2 11.3 10.5 9.3 9.6 6.6 10.0 10.1 9.7 10.3 9.1 

SP 1037 B2 8.2 10.5 11.4 13.1 12.1 8.8 11.6 7.9 12.0 8.5 10.4 11.0 9.7 

GBCH 04 6.5 11.6 11.3 12.7 11.9 9.6 12.5 6.4 11.0 10.2 10.4 10.8 9.9 

MLCH- 318 BGII 7.9 10.1 10.0 12.6 10.8 9.3 11.3 7.4 10.0 10.3 10.0 10.3 9.7 

RCH- 596 BGII 7.9 12.5 13.6 14.4 12.1 9.6 12.6 7.8 12.0 10.0 11.2 12.1 10.4 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall m ean 

!" # 

M ean (I) 

M ean (RF)

Mean Seed Cotton Yield under ETL Based Plant Protection 

46 

Under irrigated conditions, the seed cotton yield ranged between 1516 kg/ha 

(GK 205 BG II) and 2752 kg/ha (ACH 155-2). Nineteen test hybrids recorded higher 

seed cotton yield over RCH 2 Bt check hybrid ranging from 5 to 32 % (Table 30). 

Table 30. Mean seed cotton yield under irrigated conditions in Set ‘B’ under ETL 


Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coimbatore 

Srivilliputhr 

Mean 

(I) 

!" # 

% Inc. 

over 

RCH 

2Bt 

ACH 155-2 2210 2697 3448 1765 3203 3186 2752 32 

VICH 15 Bt 1475 3169 3502 1430 2747 3603 2654 28 

JKCH-2245 Bt 1682 3375 3469 1827 2573 2904 2638 27 

NCS 207 Bt 2 1820 3961 3425 1108 2567 2785 2611 26 

KDCHH 9632 BG II 1343 3387 3426 1853 2386 3143 2590 25 

NSPL -999 BG II 1580 2780 2964 1094 3496 3557 2579 24 

PCH 105 Bt 2 2012 2683 3271 1541 2433 3233 2529 22 

Tulasi 118 BGII 1898 2770 3178 1315 3242 2708 2518 21 

PRCH 504 BG II 1762 2806 3181 1387 2848 3066 2508 21 

NAMCOT-607 BG II 1622 3156 2866 1381 2841 2805 2445 18 

KCH-135 Bt II 1632 2820 2818 1392 2714 2847 2370 14 

ANKUR-10122 BGII 1425 2655 2990 1781 2664 2600 2353 13 

113 – 2 Bt 1445 2594 3150 1377 2460 2994 2337 12 

SP 1037 B2 1373 2638 2876 1412 2741 2742 2297 11 

RCH- 596 BGII 1355 2879 3418 1357 1893 2732 2272 9 

VCH-602 BG II 1091 3221 2614 1146 2306 2928 2218 7 

UPLHH-12 Bt 1312 2698 2732 1446 2179 2936 2217 7 

ABCH-1020 1656 2699 2906 1143 2446 2214 2177 5 

MLCH- 318 BGII 1329 2968 2818 1157 2466 2315 2176 5 


NCEH- 29 1410 2501 2797 972 1744 1952 1896 -9 

GBCH 04 1021 1970 2307 778 2313 2793 1864 -10 

SBCH 284 1188 2058 2159 750 2018 2850 1837 -12 



GK-205 BG II 758 1437 2546 761 1665 1932 1516 -27 

CD @ 5% 407 519 450 231 

CV % 16 12 11 5

47 

Under rainfed conditions, the highest seed cotton yield was recorded in KDCHH 9632 

BG II (2311 kg/ha) with 24 % yield increase over RCH 2 Bt check hybrid which recorded 

a mean yield of 1864 kg/ha (Table 31). Several other hybrids also registered yield 

increase of 1 to 24 over RCH 2 Bt including local check hybrids. 

Table 31. Mean seed cotton yield under rainfed conditions in Set ‘B’ under ETL 


Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean 

(RF) 

!" # 

% Inc. 

over 


KDCHH 9632 BG II 3255 2388 1545 2995 1372 2311 24 

NCS 207 Bt 2 3402 2020 2245 2426 1443 2307 24 

ACH 155-2 2492 2128 2121 2770 2009 2304 24 


NSPL -999 BG II 2806 2307 1895 2478 1852 2268 22 



SP 1037 B2 3028 2160 1699 2204 1571 2132 14 

ABCH-1020 3039 1795 2338 2140 1195 2101 13 

KCH-135 Bt II 3147 1998 1472 2275 1548 2088 12 

MLCH- 318 BGII 2546 2208 2060 2248 1363 2085 12 

JKCH-2245 Bt 3053 2043 1689 1966 1556 2061 11 

Tulasi 118 BGII 2644 1968 1637 2057 1992 2060 10 

PRCH 504 BG II 2779 1852 1812 2241 1433 2024 9 

NAMCOT-607 BG II 2575 1988 1606 2394 1497 2012 8 



ANKUR-10122 BGII 3041 1853 1812 1374 1542 1924 3 

NCEH- 29 2660 2282 1493 1863 1103 1880 1 


RCH- 596 BGII 2583 1746 1627 1856 1443 1851 -1 

VCH-602 BG II 2659 1470 1174 2140 1567 1802 -3 


SBCH 284 1921 1597 1267 1759 1519 1613 -13 

GK-205 BG II 2283 1723 855 1532 1475 1573 -16 

GBCH 04 2299 1144 1019 1578 1236 1455 -22 

CD @ 5% 376 825 429 564 638 

CV % 8 9 16 16 10

Lint yield under ETL based protection 

48 

Under irrigated condition, lint yield ranged between 618 kg/ha (GK 205 BG II) and 1121 

kg/ha (VICH 15 Bt). The Bt check hybrid was observed to have 780 kg/ha of lint yield 

(Table 32). 

Table 32. Mean lint yield (kg/ha) in irrigated centres in Set ‘B’ under ETL based 

protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

Mean (I) 

!" # 

% Inc. over 

RCH 2 BT 


ACH 155-2 767 992 1379 1106 1131 1075 38 

NSPL -999 BG II 539 962 1126 1195 1328 1030 32 


Tulasi 118 BGII 716 984 1239 1152 950 1008 29 


NAMCOT-607 BG II 568 1204 1118 1021 1029 988 27 


PRCH 504 BG II 641 974 1145 966 1140 973 25 



KDCHH 9632 BG II 428 1090 1233 751 1123 925 19 

VCH-602 BG II 418 1212 1098 819 1073 924 18 

SP 1037 B2 504 960 1035 918 1024 888 14 

ANKUR-10122 BGII 459 906 1136 877 935 863 11 

MLCH- 318 BGII 480 1027 1014 836 866 845 8 

RCH- 596 BGII 522 951 1196 573 973 843 8 



SBCH 284 403 752 842 754 1113 773 -1 

ABCH-1020 479 865 988 737 792 772 -1 

GBCH 04 411 706 854 782 1003 751 -4 

NCEH- 29 441 816 979 529 691 691 -11 



GK-205 BG II 291 510 1018 554 718 618 -21 

CD @ 5% 185 172 113 

CV % 12 13 7

49 

Under rainfed conditions also, the highest lint yield of 858 kg/ha was recorded in 

VICH 15 Bt with 34 % yield increase over RCH 2 Bt (Table 33). Only four test hybrids 

recorded lesser lint yield than RCH 2 Bt. Notably local check hybrid also registered 

higher lint yield over RCH 2 Bt. 

Table 33. Mean lint yield (kg/ha) in rainfed centres in Set ‘B’ under ETL based 

protection 

Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean 

(RF) 

!" # 

% Inc. 

over 



ACH 155-2 896 724 770 1021 757 834 30 



NSPL -999 BG II 981 785 681 936 687 814 27 

KDCHH 9632 BG II 1132 716 494 1135 520 800 25 


SP 1037 B2 1060 756 684 844 522 773 21 

Tulasi 118 BGII 980 630 703 768 727 761 19 

MLCH- 318 BGII 874 729 760 848 469 736 15 

PRCH 504 BG II 1016 593 652 847 545 730 14 




NAMCOT-607 BG II 891 676 545 941 494 710 11 


ABCH-1020 1043 538 677 752 428 688 8 

VCH-602 BG II 931 559 445 828 533 659 3 

ANKUR-10122 BGII 1073 593 543 499 513 644 1 

RCH- 596 BGII 929 506 665 638 479 644 1 


NCEH- 29 911 776 462 653 387 638 0 


GK-205 BG II 820 603 389 547 494 571 -11 

SBCH 284 652 511 417 699 494 555 -13 

GBCH 04 803 389 438 617 445 538 -16


50 

Fibre quality was evaluated in seven locations and data on 2.5 % span length (mm), 

uniformity ratio, micronaire and bundle strength is furnished in Tables 34 to 37. Most of 

the hybrids had around 30 mm of fibre length (Table 34). 

Table 34. 2.5% Span Length (mm) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

NCEH- 29 30.6 31.8 33.7 33.1 33.3 33.5 31.5 32.5 32.3 32.8 

ABCH-1020 29.2 31.6 33.4 33.2 31.6 31.8 30.7 31.6 31.9 31.3 

KDCHH 9632 BG II 26.5 28.2 30.0 30.5 28.0 26.8 28.1 28.3 28.8 27.6 


PRCH 504 BG II 31.4 30.2 33.8 33.4 32.6 30.7 31.3 31.9 32.2 31.5 

NSPL -999 BG II 31.1 31.2 32.4 32.7 30.2 29.1 30.1 31.0 31.8 29.8 


SBCH 284 27.4 27.1 29.3 29.8 27.3 26.1 26.9 27.7 28.4 26.7 


KCH-135 Bt II 31.6 32.2 32.7 32.8 32.2 29.0 30.2 31.5 32.3 30.5 

VCH-602 BG II 29.7 31.6 32.0 34.7 29.8 29.4 30.5 31.1 32.0 29.9 


Tulasi 118 BGII 29.6 29.5 32.5 33.6 31.9 29.4 30.0 30.9 31.3 30.4 


GK-205 BG II 27.4 29.3 30.9 30.4 28.1 26.8 29.2 28.9 29.5 28.0 


ANKUR-10122 BGII 31.7 32.1 33.8 33.3 31.4 28.2 31.4 31.7 32.7 30.3 

JKCH-2245 Bt 30.6 31.4 31.6 32.5 32.2 29.8 30.5 31.2 31.5 30.8 


ACH 155-2 24.4 29.1 31.1 31.5 27.4 24.7 27.4 27.9 29.0 26.5 

NCS 207 Bt 2 29.7 32.1 32.5 33.0 30.4 32.4 29.4 31.3 31.8 30.7 

NAMCOT-607 BG II 27.7 29.3 31.1 30.7 28.9 26.2 28.5 28.9 29.7 27.9 

SP 1037 B2 28.7 29.6 32.5 31.6 29.8 30.3 28.5 30.1 30.6 29.5 

GBCH 04 28.0 29.4 31.0 31.4 29.9 28.2 28.6 29.5 30.0 28.9 

MLCH- 318 BGII 27.7 28.3 32.1 29.6 28.2 25.9 30.5 28.9 29.4 28.2 

RCH- 596 BGII 30.2 31.8 34.0 34.0 32.4 31.9 27.1 31.6 32.5 30.5 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

There was not much variation in uniformity ratio between the hybrids tested in the trial 

Set ‘B’ (Table 35). 

Table 35. Uniformity Ratio in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

51 

NCEH- 29 51.0 49.0 51.7 47.0 47.4 48.0 49.0 49.7 47.7 

ABCH-1020 49.0 49.0 50.3 48.0 48.8 48.0 48.9 49.1 48.4 

KDCHH 9632 BG II 49.0 48.0 51.3 50.0 50.1 50.0 49.7 49.6 50.1 


PRCH 504 BG II 49.0 51.0 49.3 47.0 48.0 49.0 48.9 49.1 48.5 

NSPL -999 BG II 51.0 50.0 51.7 50.0 52.6 49.0 50.7 50.7 50.8 

PCH 105 Bt 2 51.0 49.0 52.0 50.0 50.7 51.0 50.6 50.5 50.8 

SBCH 284 51.0 51.0 52.0 51.0 51.8 50.0 51.1 51.3 50.9 

UPLHH-12 Bt 51.0 50.0 51.7 50.0 51.6 51.0 50.9 50.7 51.3 

KCH-135 Bt II 47.0 47.0 51.0 48.0 47.4 46.0 47.7 48.3 46.7 

VCH-602 BG II 49.0 47.0 52.3 50.0 48.4 51.0 49.6 49.6 49.7 

113 – 2 Bt 51.0 49.0 51.3 50.0 51.7 51.0 50.7 50.3 51.3 

Tulasi 118 BGII 50.0 49.0 51.7 48.0 46.8 50.0 49.2 49.7 48.4 


GK-205 BG II 49.0 50.0 52.0 50.0 51.4 50.0 50.4 50.3 50.7 

VICH 15 Bt 51.0 50.0 53.0 51.0 50.9 49.0 50.8 51.3 50.0 

ANKUR-10122 BGII 50.0 50.0 51.0 50.0 50.1 47.0 49.7 50.3 48.6 

JKCH-2245 Bt 48.0 47.0 51.0 49.0 47.6 49.0 48.6 48.8 48.3 


ACH 155-2 51.0 51.0 51.7 50.0 51.7 51.0 51.1 50.9 51.3 

NCS 207 Bt 2 48.0 47.0 49.7 49.0 49.3 50.0 48.8 48.4 49.6 

NAMCOT-607 BG II 47.0 47.0 49.3 48.0 47.7 47.0 47.7 47.8 47.3 

SP 1037 B2 48.0 49.0 52.0 50.0 50.4 49.0 49.7 49.8 49.7 

GBCH 04 48.0 50.0 51.3 50.0 49.3 51.0 49.9 49.8 50.2 

MLCH- 318 BGII 50.0 50.0 52.0 49.0 50.8 51.0 50.5 50.3 50.9 

RCH- 596 BGII 47.0 51.0 50.7 48.0 49.3 50.0 49.3 49.2 49.6 

Srivilliputhr 

LAM 

Adilabad 

Overall mean 

!" # 

Mean (I) 

Mean (RF)

52 

In trial with Set ‘B’ of hybrids, the micronaire value varied from 3.8 and 4.5 (Table 36). 

Table 36. Micronaire (µg/tex) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

NCEH- 29 3.4 4.0 3.8 4.5 4.7 4.5 4.1 4.1 3.9 4.4 

ABCH-1020 3.5 4.2 3.9 3.9 4.0 3.9 3.4 3.8 3.9 3.7 

KDCHH 9632 BG II 3.3 4.4 3.9 4.6 4.7 4.5 4.1 4.2 4.1 4.4 


PRCH 504 BG II 3.3 4.8 4.2 4.7 3.7 4.2 3.7 4.1 4.3 3.9 

NSPL -999 BG II 3.8 4.7 4.8 4.8 4.7 4.7 4.0 4.5 4.5 4.4 


SBCH 284 3.1 4.4 4.4 4.8 3.8 4.2 3.3 4.0 4.2 3.8 



VCH-602 BG II 3.2 3.8 4.6 4.4 4.5 4.4 3.5 4.1 4.0 4.1 


Tulasi 118 BGII 3.5 4.3 4.6 4.6 4.3 4.4 3.7 4.2 4.3 4.1 


GK-205 BG II 2.8 4.2 4.5 4.8 4.8 4.6 3.6 4.2 4.1 4.3 


ANKUR-10122 BGII 3.0 4.2 4.2 4.4 3.9 4.1 3.7 3.9 4.0 3.9 



ACH 155-2 3.3 4.3 4.3 4.8 4.3 5.2 3.5 4.2 4.2 4.3 


NAMCOT-607 BG II 3.9 4.4 4.8 5.0 4.6 4.8 3.5 4.4 4.5 4.3 

SP 1037 B2 3.3 4.5 4.5 4.7 4.7 4.4 4.3 4.3 4.3 4.5 

GBCH 04 3.2 4.3 4.3 4.5 3.8 4.9 3.3 4.0 4.1 4.0 

MLCH- 318 BGII 3.6 4.3 4.7 4.6 4.6 4.6 4.0 4.3 4.3 4.4 

RCH- 596 BGII 3.2 4.3 4.3 4.5 4.3 4.1 4.3 4.1 4.1 4.2

53 

The highest bundle strength of 22.9 g/tex was recorded in PCH 105 Bt 2, Ankur 10122 

BG II and Bunny (Table 37). The lowest strength was observed in NAMCOT-607 BG II 

(20.1 g/tex). Eleven test hybrids were found better than Bt check hybrid. 

Table 37. Bundle Strength (g/tex) in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall 

mean 

!" # 

Mean 

(I) 

Mean 

(RF) 

NCEH- 29 21.8 22.5 23.7 21.6 22.7 20.6 21.2 22.0 22.4 21.5 

ABCH-1020 21.0 22.5 22.9 21.6 24.0 23.6 21.7 22.5 22.0 23.1 

KDCHH 9632 BG II 20.8 21.3 22.6 21.1 22.7 21.7 20.4 21.5 21.4 21.6 


PRCH 504 BG II 22.2 23.1 21.5 22.4 24.2 22.0 22.6 22.6 22.3 22.9 

NSPL -999 BG II 21.9 23.5 21.7 22.2 21.9 23.5 21.6 22.3 22.3 22.3 


SBCH 284 20.9 20.7 19.8 20.9 22.0 22.8 21.1 21.2 20.6 22.0 



VCH-602 BG II 20.8 21.8 20.0 21.4 21.6 20.6 22.1 21.2 21.0 21.4 


Tulasi 118 BGII 21.3 22.1 21.6 23.3 22.0 21.4 22.3 22.0 22.1 21.9 


GK-205 BG II 20.6 20.7 21.1 21.5 22.0 20.1 21.9 21.1 21.0 21.3 


ANKUR-10122 BGII 22.0 23.0 23.1 23.8 23.7 23.1 21.8 22.9 23.0 22.9 



ACH 155-2 20.8 22.0 21.2 22.2 23.1 22.2 21.7 21.9 21.6 22.3 


NAMCOT-607 BG II 19.1 20.1 20.1 20.2 20.6 20.0 20.9 20.1 19.9 20.5 

SP 1037 B2 21.7 20.1 21.9 22.7 21.7 23.1 21.5 21.8 21.6 22.1 

GBCH 04 20.5 21.8 20.8 21.2 22.2 20.4 23.0 21.4 21.1 21.9 

MLCH- 318 BGII 20.8 21.3 22.1 23.0 23.1 23.6 22.4 22.3 21.8 23.0 

RCH- 596 BGII 21.9 22.9 22.5 22.5 23.0 22.4 21.3 22.4 22.5 22.2

ETL Based Entomological Evaluation 

Sucking pests 

54 

Sucking pests like jassids, white fly, thrips and aphids were recorded in different entries 

of Set ‘B’ on weekly basis and the mean data is furnished in Tables 38 to 41. Test 

hybrids KDCHH 9632 BG II (2.7) and MLCH 318 BG II (2.5) had lesser incidence of 

jassids as compared to Bt check (4.2). 

Table 38. Jassid / plant in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coimbatore 

LAM 

Dharwad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

NCEH- 29 6.8 1.4 12.3 1.3 1.9 1.1 2.1 3.8 4.7 1.6 

ABCH-1020 4.4 1.3 13.5 2.7 1.7 1.3 3.5 4.1 4.7 2.4 

KDCHH 9632 BG II 2.2 2.3 6.2 2.0 1.6 1.1 3.7 2.7 2.8 2.4 


PRCH 504 BG II 4.8 0.5 9.3 1.1 1.8 1.1 3.9 3.2 3.5 2.5 

NSPL -999 BG II 2.4 1.7 11.3 1.0 1.6 1.1 2.9 3.2 3.6 2.0 


SBCH 284 4.2 1.3 27.0 2.9 1.9 2.3 3.2 6.1 7.5 2.8 



VCH-602 BG II 4.8 1.1 19.0 2.0 1.4 1.3 2.4 4.6 5.7 1.8 


Tulasi 118 BGII 10.2 1.5 16.0 2.2 1.5 0.1 3.4 5.0 6.3 1.8 


GK-205 BG II 8.6 1.0 7.8 1.5 1.5 0.8 3.7 3.6 4.1 2.3 


ANKUR-10122 BGII 4.4 1.5 7.0 2.0 1.5 2.3 2.5 3.0 3.3 2.4 



ACH 155-2 5.6 1.5 6.3 1.0 1.6 1.4 3.1 2.9 3.2 2.3 


NAMCOT-607 BG II 3.4 2.6 15.0 3.7 1.2 2.8 3.0 4.5 5.2 2.9 

SP 1037 B2 4.8 1.8 20.0 2.9 2.0 2.8 3.9 5.5 6.3 3.4 

GBCH 04 11.2 2.3 13.7 3.1 1.4 2.2 3.1 5.3 6.3 2.7 

MLCH- 318 BGII 3.8 1.3 8.0 1.3 1.2 0.4 1.4 2.5 3.1 0.9 

RCH- 596 BGII 4.6 1.5 7.8 3.5 1.7 1.2 2.3 3.2 3.8 1.8

55 

White fly population per plant in test hybrids viz., NSPL 999 BG II, SP 1037 B2 and 

GBCH 04 were less (1.0) as compared to RCH 2 Bt (1.6). 

Table 39. Whitefly / plant in Set ‘B’ under ETL based protection 

Entry Warangal Siruguppa Coimbatore LAM Overall 

mean 

Mean 

(I) 

Mean 

(RF) 

NCEH- 29 5.8 0.6 0.0 0.1 1.6 2.1 0.1 

ABCH-1020 4.4 1.1 0.0 0.2 1.4 1.8 0.2 

KDCHH 9632 BG II 4.2 1.3 0.1 0.9 1.6 1.9 0.9 


PRCH 504 BG II 2.8 0.4 0.0 1.0 1.1 1.1 1.0 

NSPL -999 BG II 3.4 0.3 0.0 0.3 1.0 1.2 0.3 


SBCH 284 4.2 0.3 0.0 0.5 1.2 1.5 0.5 


KCH-135 Bt II 3.2 1.2 0.0 0.2 1.1 1.5 0.2 

VCH-602 BG II 4.6 0.4 0.0 0.3 1.3 1.7 0.3 


Tulasi 118 BGII 4.8 0.2 0.0 0.4 1.3 1.7 0.4 


GK-205 BG II 4.6 1.3 0.0 0.6 1.6 2.0 0.6 


ANKUR-10122 BGII 3.4 1.1 0.0 0.5 1.2 1.5 0.5 

JKCH-2245 Bt 3.2 0.4 0.1 0.8 1.1 1.2 0.8 


ACH 155-2 6.2 1.3 0.0 0.0 1.9 2.5 0.0 

NCS 207 Bt 2 4.8 1.1 0.1 0.1 1.5 2.0 0.1 

NAMCOT-607 BG II 4.4 1.3 0.0 0.6 1.6 1.9 0.6 

SP 1037 B2 3.2 0.5 0.0 0.4 1.0 1.2 0.4 

GBCH 04 2.4 1.2 0.0 0.2 1.0 1.2 0.2 

MLCH- 318 BGII 4.4 0.5 0.0 0.2 1.3 1.6 0.2 

RCH- 596 BGII 3.6 1.2 0.1 0.1 1.2 1.6 0.1 

!" #

56 

As far as thrips incidence per plant is concerned, the test hybrid 113-2 Bt registered lesser 

population (4.5) as compared to Bt check hybrid (7.2). 

Table 40. Thrips / plant in Set ‘B’ under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coim batore 

LAM 

Dharwad 

Overall 

mean 

!" # 

Mean 

(I) 

Mean 

(RF) 

NCEH- 29 22.4 9.9 1.7 13.3 0.2 0.1 10.5 8.3 9.5 5.3 

ABCH-1020 16.4 6.8 1.5 7.8 0.0 0.3 8.4 5.9 6.5 4.3 

KDCHH 9632 BG II 12.6 8.1 0.7 14.2 0.1 0.1 9.2 6.4 7.1 4.6 


PRCH 504 BG II 18.4 8.5 1.2 9.5 0.0 0.3 8.5 6.6 7.5 4.4 

NSPL -999 BG II 26.6 7.1 2.0 7.7 0.1 0.2 10.3 7.7 8.7 5.3 


SBCH 284 14.2 6.7 1.0 8.7 0.1 0.3 7.5 5.5 6.1 3.9 



VCH-602 BG II 12.2 4.8 0.8 12.2 0.1 0.2 11.5 6.0 6.0 5.9 


Tulasi 118 BGII 18.4 9.2 1.7 8.9 0.1 0.2 9.3 6.8 7.7 4.7 


GK-205 BG II 32.8 5.1 1.5 2.8 0.1 0.1 10.0 7.5 8.5 5.1 


ANKUR-10122 BGII 24.6 7.2 1.0 10.8 0.1 0.0 9.8 7.6 8.7 4.9 



ACH 155-2 22.4 11.6 1.7 8.2 0.0 0.3 8.2 7.5 8.8 4.2 


NAMCOT-607 BG II 14.2 8.5 2.5 5.4 0.2 0.9 9.5 5.9 6.1 5.2 

SP 1037 B2 8.4 9.6 1.5 5.8 0.0 0.2 10.1 5.1 5.1 5.1 

GBCH 04 32.6 5.3 1.7 5.9 0.1 0.1 6.3 7.4 9.1 3.2 

MLCH- 318 BGII 8.4 11.5 1.7 8.4 0.0 0.0 7.9 5.4 6.0 3.9 

RCH- 596 BGII 20.8 6.6 0.8 13.1 0.0 0.0 6.1 6.8 8.3 3.1

57 

With regard to number of aphids per plant, the test hybrid SP 1037 B2 have recorded 

lesser population of 4.5 as against 7.2 noted in RCH 2 Bt. 

Table 41. Aphid / plant in Set ‘B’ under ETL based protection 

Entry B'gudi Coimbatore LAM Dharwad Overall Mean 

mean (I) 

Mean 

(RF) 

NCEH- 29 5.7 7.0 1.9 1.2 3.9 6.4 1.5 

ABCH-1020 4.2 9.6 2.7 1.4 4.5 6.9 2.0 

KDCHH 9632 BG II 4.3 9.0 1.2 0.7 3.8 6.6 1.0 


PRCH 504 BG II 4.5 22.1 2.3 1.0 7.5 13.3 1.7 

NSPL -999 BG II 3.8 7.0 3.2 0.4 3.6 5.4 1.8 


SBCH 284 2.5 10.3 2.8 0.9 4.1 6.4 1.9 



VCH-602 BG II 6.3 14.7 3.0 0.1 6.0 10.5 1.6 


Tulasi 118 BGII 4.1 14.1 2.4 0.6 5.3 9.1 1.5 


GK-205 BG II 9.9 13.7 1.1 0.8 6.4 11.8 0.9 


ANKUR-10122 BGII 3.5 13.2 3.1 0.7 5.1 8.4 1.9 



ACH 155-2 2.9 13.0 1.8 1.5 4.8 8.0 1.7 


NAMCOT-607 BG II 6.0 12.6 1.7 0.9 5.3 9.3 1.3 

SP 1037 B2 3.3 8.6 0.5 0.4 3.2 5.9 0.4 

GBCH 04 2.3 17.2 1.5 1.0 5.5 9.7 1.3 

MLCH- 318 BGII 6.1 8.6 1.3 1.0 4.2 7.4 1.1 

RCH- 596 BGII 2.9 11.8 1.4 0.7 4.2 7.4 1.1 

!" #

Percent Square damage 

58 

In general, the percent square damage due to bollworms was considerably low in Bt test 

hybrids as compared to non-Bt check hybrids, except GBCH 04 and SBCH 284 which 

recorded higher level of damage (Table 42). 

Table 42. % Square Damage by Bollworm in Set ‘B’ under ETL based protection 

Entry 

Warang 

Raichur 

al 

Coimb 

atore 

LAM Dharwad Overall Mean Mean 

mean (I) (RF) 

NCEH- 29 0.0 1.5 0.0 0.0 7.7 1.8 0.5 3.8 

ABCH-1020 0.0 1.0 0.0 0.0 7.7 1.7 0.3 3.9 

KDCHH 9632 BG II 0.0 2.8 0.5 0.0 2.4 1.1 1.1 1.2 


PRCH 504 BG II 0.0 0.3 0.3 0.0 6.7 1.5 0.2 3.4 

NSPL -999 BG II 0.0 0.5 0.0 0.0 5.2 1.1 0.2 2.6 


SBCH 284 0.0 23.7 0.0 0.0 1.7 5.1 7.9 0.9 


KCH-135 Bt II 0.0 0.7 0.1 0.0 4.4 1.0 0.3 2.2 

VCH-602 BG II 0.0 1.6 0.2 0.0 3.6 1.1 0.6 1.8 


Tulasi 118 BGII 0.0 0.6 0.0 0.0 3.3 0.8 0.2 1.7 


GK-205 BG II 0.0 0.4 0.0 0.0 5.0 1.1 0.1 2.5 


ANKUR-10122 BGII 0.0 1.4 0.0 0.0 9.9 2.3 0.5 5.0 

JKCH-2245 Bt 3.1 0.2 0.0 0.0 7.8 2.2 1.1 3.9 


ACH 155-2 0.0 0.1 0.0 0.0 7.3 1.5 0.0 3.7 

NCS 207 Bt 2 0.0 0.5 0.0 0.0 4.3 1.0 0.2 2.1 

NAMCOT-607 BG II 0.8 1.2 0.0 0.0 5.5 1.5 0.7 2.8 

SP 1037 B2 1.8 0.8 0.0 0.0 2.9 1.1 0.9 1.5 

GBCH 04 0.0 19.6 0.0 0.0 6.1 5.1 6.5 3.0 

MLCH- 318 BGII 2.2 0.4 0.0 0.0 6.5 1.8 0.9 3.2 

RCH- 596 BGII 0.0 1.0 0.0 0.0 10.6 2.3 0.3 5.3 

!" #

Pink boll worm damage 

59 

There was not much variation in pink bollworm damage and number per 20 green bolls 

(Table 43) and very low incidence was noticed even in non Bt hybrids. 

Table 43. Pink Bollworm in Set ‘B’ under ETL based protection 

Damage in green bolls (%) Larvae / 20 green bolls 

Entry 

Waran Coimbat 

gal ore 

LAM 

Overall 

mean 

B'gudi LAM 

Overall 

mean 

NCEH- 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

ABCH-1020 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

KDCHH 9632 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


PRCH 504 BG II 1.1 0.0 0.0 0.4 0.0 0.0 0.0 

NSPL -999 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


SBCH 284 0.0 0.0 0.0 0.0 0.0 0.0 0.0 



VCH-602 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


Tulasi 118 BGII 0.0 1.7 0.0 0.6 0.3 0.0 0.2 


GK-205 BG II 0.9 0.0 0.0 0.3 0.0 0.0 0.0 


ANKUR-10122 BGII 0.0 0.0 0.0 0.0 0.0 0.0 0.0 



ACH 155-2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 


NAMCOT-607 BG II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

SP 1037 B2 0.6 0.0 0.0 0.2 0.0 0.0 0.0 

GBCH 04 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

MLCH- 318 BGII 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

RCH- 596 BGII 0.0 0.0 0.0 0.0 0.0 0.0 0.0 

!" #


60 

There was not much difference between open boll damage in most of the hybrids (Table 

44). High level of damage was recorded in Dharwad and Beemarayangudi, whereas, low 

level of damage was recorded in other centres. 

Table 44. Open boll damage (%) in Set ‘B’ under ETL based protection 

Entry 

Siruguppa 

Open boll damage (%) 

B'gudi 

Coimbatore 

LAM 

Overall 

mean 

Siruguppa 

B'gudi 

Locule damage (%) 

Coimbatore 

LAM 

!" # 

Dharwad 

Overall 

mean 

NCEH- 29 1.9 1.7 0.7 0.0 1.1 4.5 13.7 0.0 0.0 21.7 8.0 

ABCH-1020 2.4 3.9 0.0 0.0 1.6 2.9 12.9 0.0 0.0 22.6 7.7 

KDCHH 9632 BG II 4.1 2.4 1.0 0.0 1.9 4.1 11.3 0.0 0.0 15.8 6.2 


PRCH 504 BG II 1.4 2.9 0.0 0.0 1.1 3.1 12.1 0.0 0.0 6.5 4.3 

NSPL -999 BG II 3.1 1.4 0.0 0.0 1.1 11.6 14.5 0.0 0.0 8.6 6.9 


SBCH 284 3.7 3.4 1.0 0.0 2.0 12.0 12.6 0.0 0.0 8.3 6.6 


KCH-135 Bt II 2.7 2.1 0.3 0.0 1.3 4.6 11.9 0.0 0.0 10.9 5.5 

VCH-602 BG II 3.1 2.0 0.0 0.0 1.3 3.2 14.1 0.0 0.0 16.2 6.7 


Tulasi 118 BGII 3.7 4.4 0.3 0.0 2.1 11.0 8.7 0.2 0.0 15.9 7.1 


GK-205 BG II 0.4 0.5 0.0 0.0 0.2 3.3 10.8 0.0 0.0 11.7 5.1 


ANKUR-10122 BGII 2.1 0.9 1.7 0.0 1.2 5.6 10.6 0.0 0.0 14.2 6.1 

JKCH-2245 Bt 3.4 0.0 0.0 0.0 0.9 4.3 14.7 0.0 0.0 11.2 6.1 


ACH 155-2 1.6 2.3 1.0 0.0 1.2 2.9 8.0 0.0 0.0 18.6 5.9 

NCS 207 Bt 2 2.1 3.1 1.3 0.0 1.6 8.3 9.3 0.0 0.0 16.8 6.9 

NAMCOT-607 BG II 1.9 0.0 1.0 0.0 0.7 6.5 9.8 0.0 0.0 17.1 6.7 

SP 1037 B2 3.9 2.4 0.0 0.0 1.6 9.5 7.4 0.0 0.0 11.4 5.7 

GBCH 04 2.6 5.1 0.7 0.0 2.1 2.8 8.0 0.0 0.0 17.5 5.7 

MLCH- 318 BGII 1.5 1.6 1.0 0.0 1.0 2.9 15.9 0.0 0.0 19.8 7.7 

RCH- 596 BGII 3.0 0.0 0.3 0.0 0.8 3.2 12.6 0.0 0.0 24.5 8.1

61 


Germination and Plant Stand 

Under unprotected conditions, poor germination and plant stand at harvest was noticed in 

NCEH 29 and lack of germination was reported in GK 205 BG II was reported at 

Coimbatore (Table 45). In other entries, satisfactory germination and plant stand was 

recorded. 

Table 45. Germination and Plant Stand under Unprotected condition in Set ‘B’ 


Entry 

Coimbat Srivillip 

ore uthr 

LAM 

Overall 

mean 

Coimba 

tore 

LAM 

Overall 

mean 

NCEH- 29 50.0 80.0 87.2 72.4 15.0 25.3 20.2 

ABCH-1020 80.0 85.0 89.5 84.8 24.0 26.0 25.0 

KDCHH 9632 BG II 93.0 91.7 77.8 87.5 28.0 22.0 25.0 


PRCH 504 BG II 80.0 90.0 83.5 84.5 24.0 24.0 24.0 

NSPL -999 BG II 73.0 80.0 88.6 80.5 22.0 25.3 23.7 


SBCH 284 87.0 76.7 90.5 84.7 26.0 25.7 25.8 



VCH-602 BG II 80.0 71.7 90.0 80.6 24.0 26.0 25.0 


Tulasi 118 BGII 73.0 90.0 91.6 84.9 22.0 26.3 24.2 


GK-205 BG II 0.0 35.0 90.7 41.9 0.0 26.3 13.2 


ANKUR-10122 BGII 70.0 81.7 85.7 79.1 21.0 24.3 22.7 



ACH 155-2 87.0 78.3 81.2 82.2 26.0 23.3 24.7 


NAMCOT-607 BG II 67.0 93.3 85.3 81.9 20.0 25.0 22.5 

SP 1037 B2 73.0 95.0 90.5 86.2 22.0 26.0 24.0 

GBCH 04 70.0 83.3 95.3 82.9 21.0 27.3 24.2 

MLCH- 318 BGII 60.0 85.0 96.2 80.4 18.0 29.0 23.5 

RCH- 596 BGII 73.0 96.7 80.9 83.5 22.0 24.0 23.0 

!" #


62 

The non Bt check hybrids recorded the highest open boll damage in both boll basis and 

locule basis (Table 46). 

Table 46. Open Boll Damage under Unprotected condition in Set ‘B’ 

Entry 

Coim batore 

Open boll damage (%) Locule damage (%) 

Srivilliputhr 

LAM 

Aruppukottai 

Overall 

mean 

Coim batore 

Srivilliputhr 

LAM 

Dharwad 

!" # 

Aruppukottai 

Overall 

mean 

NCEH- 29 1.0 10.2 0.0 5.1 4.1 0.0 8.8 0.0 21.4 4.7 7.0 

ABCH-1020 0.0 18.9 0.0 5.2 6.0 0.0 6.6 0.0 19.1 4.8 6.1 

KDCHH 9632 BG II 0.0 23.6 0.0 3.4 6.7 0.0 11.3 0.0 8.8 3.0 4.6 


PRCH 504 BG II 0.0 10.8 0.0 3.3 3.5 0.0 7.7 0.0 3.8 2.9 2.9 

NSPL -999 BG II 0.0 27.0 0.0 2.4 7.4 0.0 15.0 0.0 9.3 2.0 5.3 


SBCH 284 0.5 27.4 0.0 4.9 8.2 0.0 16.3 0.0 7.8 4.5 5.7 


KCH-135 Bt II 1.0 14.6 0.0 3.8 4.8 0.5 7.5 0.0 15.0 3.5 5.3 

VCH-602 BG II 0.0 16.3 0.0 5.1 5.3 0.0 6.3 0.0 6.7 4.7 3.5 


Tulasi 118 BGII 1.5 12.9 0.0 2.7 4.3 0.0 6.4 0.0 6.9 2.4 3.1 


GK-205 BG II 0.0 12.1 0.0 3.8 4.0 0.0 7.9 0.0 3.9 3.3 3.0 


ANKUR-10122 BGII 0.0 9.7 0.0 3.5 3.3 0.0 7.7 0.0 5.4 3.0 3.2 

JKCH-2245 Bt 1.5 12.3 0.0 4.6 4.6 0.0 5.2 0.0 8.4 4.2 3.6 


ACH 155-2 0.0 12.2 0.0 2.2 3.6 0.0 10.3 0.0 9.6 1.9 4.4 

NCS 207 Bt 2 0.0 10.4 0.0 2.8 3.3 0.0 7.8 0.0 5.1 2.5 3.1 

NAMCOT-607 BG II 0.0 14.4 0.0 5.2 4.9 0.0 8.8 0.0 8.7 4.8 4.4 

SP 1037 B2 0.0 11.9 0.0 1.8 3.4 0.0 7.7 0.0 8.8 1.4 3.6 

GBCH 04 0.0 13.3 0.0 4.2 4.4 0.5 10.1 0.0 6.8 3.6 4.2 

MLCH- 318 BGII 0.0 13.3 0.0 4.6 4.5 0.0 8.8 0.0 6.6 4.2 3.9 

RCH- 596 BGII 0.0 13.4 0.0 4.5 4.5 0.0 8.8 0.0 8.3 4.0 4.2

Mean Seed Cotton Yield 

63 

Under unprotected conditions, seed cotton yield was recorded in Coimbatore and 

Srivilliputhur in irrigated situation and the data is furnished in Table 47. The highest 

seed cotton yield of 2305 kg/ha was reported in UPLHH 12 Bt with 50 % yield increase 

over RCH 2 Bt. 

Table 47. Seed cotton yield (kg/ha) in irrigated locations under unprotected 

conditions in Set ‘B’ 


% Inc. over 



PRCH 504 BG II 1281 2729 2005 30 

KDCHH 9632 BG II 1096 2600 1848 20 

JKCH-2245 Bt 941 2676 1809 17 

Tulasi 118 BGII 849 2738 1794 16 

PCH 105 Bt 2 833 2478 1656 7 


ABCH-1020 648 2486 1567 1 


NCS 207 Bt 2 941 2148 1545 0 

NSPL -999 BG II 802 2279 1541 -1 

ANKUR-10122 BGII 694 2313 1504 -3 

MLCH- 318 BGII 895 2045 1470 -5 

GK-205 BG II 1464 1464 -6 


ACH 155-2 772 2070 1421 -9 

VCH-602 BG II 895 1938 1417 -9 

KCH-135 Bt II 787 2036 1412 -9 

GBCH 04 525 2295 1410 -9 

NAMCOT-607 BG II 602 2166 1384 -11 


RCH- 596 BGII 648 2054 1351 -13 

SP 1037 B2 772 1776 1274 -18 


SBCH 284 525 1941 1233 -21 

NCEH- 29 

CD @ 5% 

CV % 

355 2097 1226 -22 

!" #

64 

Yield data was recorded in Lam and Aruppukottai and the data is furnished in Table 48. 

The highest yield was noted in ACH 155-2 (1954 kg/ha) with 78 yield increase over RCH 

2 Bt (1095 kg/ha). 

Table 48. Seed cotton yield (kg/ha) in rainfed locations under unprotected 

conditions in Set ‘B’ 

Entry LAM Aruppukottai Mean (RF) 

% Inc. over 


ACH 155-2 1811 2096 1954 78 


KDCHH 9632 BG II 1441 1769 1605 47 

NSPL -999 BG II 1247 1773 1510 38 


JKCH-2245 Bt 1806 986 1396 27 

KCH-135 Bt II 1455 1272 1364 25 

NAMCOT-607 BG II 1570 1053 1312 20 

MLCH- 318 BGII 1649 933 1291 18 

NCS 207 Bt 2 1478 1087 1283 17 

PRCH 504 BG II 1570 969 1270 16 

Tulasi 118 BGII 1071 1443 1257 15 

ANKUR-10122 BGII 1626 885 1256 15 


ABCH-1020 535 1831 1183 8 

RCH- 596 BGII 1048 1239 1144 4 


NCEH- 29 646 1531 1089 -1 


SP 1037 B2 1187 856 1022 -7 

GBCH 04 632 1399 1016 -7 

GK-205 BG II 900 1050 975 -11 

PCH 105 Bt 2 1002 871 937 -14 


VCH-602 BG II 646 1097 872 -20 

SBCH 284 609 999 804 -27 

!" #

65 


The pathological observations like incidence of major diseases Bacterial leaf blight, 

alternaria leaf spot, grey mildew, myrothecium leaf spot and other diseases like 

Helminthosporium leaf spot, Colletotrichum boll rot were recorded under natural 

conditions and are presented centre-wise. 

Lam, Guntur: In general, bacterial blight and grey mildew were the diseases that were 

noticed in the test and check hybrids. Most of the test hybrids recorded moderate 

incidence of the diseases with the few like SBCH 284, UPLHH 12 recording lesser 

incidence of the diseases. 

Warangal: Mild incidence of bacterial blight and grey mildew were noticed with Bt and 

non Bt hybrids recording equally less level of incidence. However, Colletotrichum boll 

rot could be noticed at less than ten per cent in bolls of both Bt and non Bt hybrids. 

Similarly, mild incidence of Tobacco Streak Virus with chlorotic mottles could be 

noticed in both Bt and non Bt hybrids. 

Coimbatore: No incidence of Alternaria leaf spot, bacterial blight or grey mildew could 

be noticed among the Bt hybrids tested. However, very less incidence of seedling rot 

could be seen with incidence grade being one in most of the hybrids with appearance 

showing 30 days after sowing in all test and check hybrids. 

Srivilliputhur: Initiation of bacterial blight disease was noticed in infestor row of 

susceptible check, while mild incidence with grade I being noticed in certain test hybrids 

and check hybrids from 90 days after sowing stage. Most of the test hybrids did not show 

any disease symptom due to Myrothecium leaf spot, while very few hybrids like KDCHH 

9632 BG II, Tulasi 118 BG II, NAMCOT 607 BG II, SP 1037 B2, MLCH 318 BG II and 

local check registered lower incidence at later stages of growth. 

Aruppukottai: None of the test entries showed the incidence of bacterial leaf blight, 

grey mildew and Cercospora leaf spot upto 45 days after sowing. Lower level of disease 

incidence of Cercospora and grey mildew was noticed after 120 days after sowing in 

most of the hybrids including check hybrids with test entries like VICH 15 Bt, MLCH 

318 BG II, RCH 596 BG II recording very less disease incidence. 

Beemarayangudi: Alternaria leaf spot, bacterial blight and rust were noticed only during 

later stages of growth with both Bt test hybrids and check hybrids reporting similar levels 

of grade of infection. Leaf reddening has also been observed in most of the Bt test 

hybrids at 150 days after sowing stage. 

!" #

INTRA HIRSUTUM HYBRID TRIAL 

66 

SECOND YEAR TRIALS (2007-08) 

In continuation of previous year (2006-07) trial evaluation of intra-hirsutum Bt 

cotton hybrids, second year evaluation of test hybrids (submitted for evaluation by 

AICCIP) was carried out. The following list shows the details of the hybrids submitted 

by firms for second year evaluation. 

S. No. Name of the Hybrid Name of the Company 

1. Akka BG II Ankur Seeds Pvt. Limited 

2. Ankur Jai Bt Ankur Seeds Pvt. Limited 

3. BCHH 322-2 BG II Bioseed India Research Pvt. Limited 

4. Brahma BG II Emergent Genetics India Pvt. Ltd 

5. JK Gowri Bt (ET 1) JK Agri Genetics Limited 

6. KDCHH 441 BG II Krishidhan Seeds 

7. NCEH 13 Bt (FG) Nath Seeds 

8. Tulasi 9 BG II Tulasi Seeds Pvt. Limited 

The evaluation trial was carried out as per standard established procedure adopted 

for evaluation of Bt test hybrids in earlier years like inclusion of Bt and non-Bt check 

hybrids besides local check hybrid, ETL based plant protection and other entomological 

and pathological observations etc. The data received from evaluation centres have been 

compiled and presented below. 

In general, germination percentage and plant stand at harvest were comparable to check 

hybrids (Table 49). 

Table 49. Germination (%) and Plant Stand under ETL based protection 

Coimbat 

ore 

Aruppuk 

ottai 

Overall 

mean 

B'gudi Coimbat 

Germination % Stand at harvest (number of plants) 

Entry 

ore 

LAM 

Overall 

mean 

JK Gowri Bt (ET 1) 84.4 94.0 89.2 43.7 38.3 58.7 46.9 

Akka BG II 88.3 98.0 93.2 47.7 50.0 56.3 51.3 


KDCHH 441 BG II 92.2 100.0 96.1 44.7 50.3 57.7 50.9 

Ankur Jai Bt 92.8 99.0 95.9 48.3 53.0 59.3 53.6 


NCEH 13 Bt (FG) 86.1 100.0 93.1 48.7 44.0 58.0 50.2 

Tulasi 9 BG II 88.9 98.0 93.4 45.7 47.0 59.3 50.7 

Brahma BG II 86.1 94.0 90.1 43.3 43.0 58.7 48.3 


BCHH 322-2 BG II 86.7 96.0 91.3 43.0 51.3 59.3 51.2 

!" #

67 

The overall mean boll weight in test hybrids was higher than the Bt check hybrid with the 

mean boll weight being more in irrigated conditions as compared to rainfed conditions 

(Table 50). 

Table 50. Boll weight (g) under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

JK Gowri Bt (ET 1) 4.4 5.4 4.8 5.9 5.0 4.6 3.9 4.5 5.6 4.1 4.8 5.1 4.5 

Akka BG II 4.8 5.3 4.9 6.9 5.3 5.0 3.8 4.9 6.0 3.7 5.1 5.5 4.7 


KDCHH 441 BG II 4.5 5.4 6.0 6.4 6.1 5.5 3.9 4.7 5.8 4.0 5.2 5.7 4.8 

Ankur Jai Bt 4.5 6.0 6.3 6.9 6.2 4.7 3.9 4.4 6.1 3.6 5.3 6.0 4.5 


NCEH 13 Bt (FG) 4.1 5.7 5.4 5.9 4.0 5.4 3.8 4.9 5.1 3.8 4.8 5.0 4.6 

Tulasi 9 BG II 4.7 6.1 5.6 6.8 6.0 5.3 4.3 5.0 5.9 4.1 5.4 5.8 4.9 

Brahma BG II 5.6 6.6 5.8 6.9 6.2 5.5 3.7 5.4 6.4 3.6 5.6 6.2 4.9 


BCHH 322-2 BG II 5.1 6.1 4.8 6.4 6.1 4.0 4.1 5.2 5.6 3.6 5.1 5.7 4.5 

The mean ginning outturn ranged between 32.9 and 37.0 % with Tulasi 9 BG II and 

NCEH 13 Bt (FG) registering higher values in many locations (Table 51). 

Table 51. Ginning outturn under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 


Akka BG II 35.7 30.8 35.0 33.3 37.0 34.9 31.0 36.0 35.3 35.3 34.4 34.3 34.5 


KDCHH 441 BG II 30.4 30.3 35.0 33.2 34.5 35.8 30.0 27.0 34.6 38.5 32.9 32.7 33.2 




Tulasi 9 BG II 37.5 34.3 39.0 35.3 36.6 36.0 32.0 38.0 42.0 38.9 37.0 36.5 37.4 

Brahma BG II 33.5 32.8 37.0 36.3 37.6 35.9 37.0 33.0 36.7 36.3 35.6 35.4 35.8 


BCHH 322-2 BG II 34.3 32.9 36.0 35.1 38.2 34.9 32.0 34.0 38.0 36.8 35.2 35.3 35.1

68 

The mean lint index varied between 5.6 and 6.7 under irrigated conditions, while it was 

from 5.7 to 6.5 under rainfed situations (Table 52). 

Table 52. Lint Index (g) under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coim batore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall 

mean 

!" # 

Mean 

(I) 


Akka BG II 5.2 5.4 6.4 6.2 7.1 5.2 5.5 5.3 6.0 6.4 5.9 6.0 5.7 


KDCHH 441 BG II 4.0 5.1 7.2 5.4 6.5 5.9 4.7 3.3 6.4 8.6 5.7 5.6 5.8 




Tulasi 9 BG II 4.6 6.2 7.5 6.8 6.5 5.6 5.4 4.5 8.0 7.7 6.3 6.3 6.2 

Brahma BG II 4.7 5.7 6.9 6.8 7.0 6.2 6.5 5.2 5.8 6.5 6.1 6.2 6.0 


BCHH 322-2 BG II 5.4 6.5 6.7 6.4 6.5 4.9 6.7 5.7 7.4 6.3 6.3 6.3 6.2 

The mean seed index ranged between 10.7 and 12.6 g under irrigated conditions, while it 

was from 10.1 to 11.8 g in rainfed location (Table 53). 

Table 53. Seed Index (g) under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 

Mean 

(RF) 


Akka BG II 9.3 12.1 12.0 12.5 12.2 10.2 10.5 9.0 11.0 11.5 11.0 11.6 10.4 


KDCHH 441 BG II 9.1 11.6 13.5 11.0 12.2 11.9 10.8 8.8 12.0 13.0 11.4 11.5 11.3 




Tulasi 9 BG II 7.7 11.8 11.7 12.6 11.2 9.9 11.6 7.0 11.0 12.5 10.7 11.0 10.4 

Brahma BG II 9.3 11.8 11.8 12.0 11.3 11.0 11.3 10.5 10.0 11.5 11.0 11.2 10.8 


BCHH 322-2 BG II 10.3 13.3 12.0 11.9 10.8 8.7 12.3 10.8 12.0 10.9 11.3 11.7 10.9

69 

The mean seed cotton yield registered by test hybrids under ETL based plant protection is 

furnished in Tables 54 and 55. Under irrigated conditions, six hybrids were found 

superior to Bt check hybrid with 4 to 20 % yield increase and the highest seed cotton 

yield was recorded in BCHH 322-2 BG II (2854 kg/ha). 

Table 54. Mean seed cotton yield under irrigated conditions under ETL based 

protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coimbatore 

Srivilliputhr 

Mean (I) 

% Inc 

over RCH 


BCHH 322-2 BG II 2155 3475 3038 2454 2969 3032 2854 20 

Ankur Jai Bt 2067 3315 3221 1868 2969 2924 2727 14 

KDCHH 441 BG II 1550 3028 3513 2117 2586 3230 2671 12 

Tulasi 9 BG II 1626 2628 3853 1282 3018 3321 2621 10 

Akka BG II 1781 3329 2929 1265 2996 3011 2552 7 

Brahma BG II 1527 2953 3192 1818 3099 2337 2488 4 



NCEH 13 Bt (FG) 1501 2687 2879 757 1981 1983 1965 -18 

JK Gowri Bt (ET 1) 1510 2444 2646 836 1753 1586 1796 -25 


CD @ 5% 473 547 510 227 

CV % 16 12 12 5 

Under rainfed situations, all the test hybrids except NCEH 13 Bt (FG) registered higher 

yield over Bt check hybrid RCH 2 Bt (1898 kg/ha) as furnished in Table 55. 

Table 55. Mean seed cotton yield under rainfed conditions under ETL based 

protection 

Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean 

(RF) 

!" # 

% Inc. 

over 

RCH 2 

Bt 

KDCHH 441 BG II 3428 2429 1843 2205 2011 2383 26 

Tulasi 9 BG II 3276 2209 1957 2133 2067 2328 23 

JK Gowri Bt (ET 1) 3102 2476 1709 2264 1764 2263 19 

Ankur Jai Bt 2635 2106 1926 2316 1970 2191 15 

Brahma BG II 3320 2211 1977 1900 1311 2144 13 

Akka BG II 2728 2066 2080 2226 1466 2113 11 

BCHH 322-2 BG II 2598 2075 2142 1617 1319 1950 3 



NCEH 13 Bt (FG) 2490 2046 1730 1248 1359 1775 -6 


CD @ 5% 258 709 303 595 122 

CV % 5 7 10 19 5

70 

As compared to lint yield of Bt check hybrid RCH 2 Bt (936 kg/ha), four hybrids 

exhibited higher lint yield to a tune of 3 to 13 % under irrigated condition (Table 56). 

Table 56. Mean lint yield (kg/ha) in irrigated centres under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

Coimbatore 

Srivilliputhr 

Mean (I) 

% Inc. 

over RCH 


Tulasi 9 BG II 610 901 1503 1070 1217 1060 13 

BCHH 322-2 BG II 739 1144 1094 1040 1157 1035 11 


Akka BG II 636 1022 1025 1000 1115 960 3 


Brahma BG II 512 967 1181 1125 877 932 0 

KDCHH 441 BG II 471 917 1230 858 1113 918 -2 



JK Gowri Bt (ET 1) 503 791 900 585 591 674 -28 


Under rainfed situation, all the test hybrids except NECH 13 Bt (FG) produced higher lint 

yield than the Bt check hybrid (Table 57). 

Table 57. Mean lint yield (kg/ha) in rainfed centres under ETL based protection 

Entry 

LAM 

Nandyal 

Adilabad 

Dharwad 

Aruppukottai 

Mean 

(RF) 

!" # 

% Inc. 

over RCH 


Tulasi 9 BG II 1180 707 743 896 804 866 32 

KDCHH 441 BG II 1227 729 497 763 773 798 22 

JK Gowri Bt (ET 1) 1076 842 546 853 643 792 21 

Brahma BG II 1190 818 652 698 476 767 17 


Akka BG II 953 640 748 785 517 729 11 

BCHH 322-2 BG II 906 664 727 615 486 680 4 




Bunny (Non-Bt check) 1093 354 668 455 555 625 -5

Fibre quality 

71 

Fibre quality attributes did not reveal any major variation in test hybrids as compared to 

Bt check hybrid, except that of NCEH 13 Bt (FG) which recorded lower micronaire value 

especially under rainfed conditions and JK Gowri Bt (ET 1) registered noticeably higher 

micronaire value under irrigated conditions (Tables 58 – 61). 

Table 58. 2.5% Span Length (mm) under ETL based protection 

Entry 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

JK Gowri Bt (ET 1) 27.8 28.1 28.6 26.8 28.6 29.1 28.2 28.2 28.1 

Akka BG II 33.3 32.9 35.8 33.2 30.9 32.9 33.2 34.0 32.3 


KDCHH 441 BG II 28.6 29.0 30.3 28.2 28.9 27.7 28.8 29.3 28.3 

Ankur Jai Bt 31.2 33.3 32.7 32.6 30.9 29.7 31.7 32.4 31.1 


NCEH 13 Bt (FG) 30.8 32.3 31.7 31.8 30.9 30.0 31.2 31.6 30.9 

Tulasi 9 BG II 30.3 32.9 32.1 30.4 28.6 29.1 30.6 31.8 29.4 

Brahma BG II 31.5 33.3 32.0 30.0 31.1 33.0 31.8 32.3 31.4 


BCHH 322-2 BG II 31.8 30.5 32.7 30.6 28.6 30.1 30.7 31.7 29.8 

Table 59. Uniformity Ratio under ETL based protection 

Entry 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Adilabad 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 

JK Gowri Bt (ET 1) 51.0 52.3 52.0 50.8 49.0 51.0 51.8 49.9 

Akka BG II 49.0 48.7 47.0 45.8 50.0 48.1 48.2 47.9 


KDCHH 441 BG II 48.0 51.3 50.0 49.0 50.0 49.7 49.8 49.5 

Ankur Jai Bt 47.0 49.3 48.0 48.4 49.0 48.4 48.1 48.7 


NCEH 13 Bt (FG) 50.0 51.7 49.0 49.5 50.0 50.0 50.2 49.7 

Tulasi 9 BG II 50.0 49.0 47.0 49.7 49.0 48.9 48.7 49.3 

Brahma BG II 49.0 49.7 49.0 49.5 50.0 49.4 49.2 49.7 


BCHH 322-2 BG II 50.0 51.0 48.0 48.7 50.0 49.5 49.7 49.3

72 

Table 60. Micronaire (µg/tex) under ETL based protection 

Entry 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 


Akka BG II 4.3 4.6 4.4 4.0 4.3 4.2 4.3 4.4 4.2 


KDCHH 441 BG II 4.3 4.4 5.1 4.9 4.5 3.8 4.5 4.6 4.4 




Tulasi 9 BG II 4.6 4.3 4.6 4.4 4.3 4.0 4.4 4.5 4.3 

Brahma BG II 4.3 4.3 4.3 4.2 4.5 3.9 4.3 4.3 4.2 


BCHH 322-2 BG II 4.4 4.6 4.4 4.1 4.2 4.2 4.3 4.5 4.2 

Table 61. Bundle Strength (g/tex) under ETL based protection 

Entry 

Siruguppa 

Coimbatore 

Srivilliputhr 

LAM 

Nandyal 

Adilabad 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 


Akka BG II 23.5 21.6 23.6 23.9 22.3 22.1 22.8 22.9 22.8 


KDCHH 441 BG II 21.4 20.1 20.1 21.9 22.8 20.5 21.1 20.5 21.7 




Tulasi 9 BG II 22.2 19.8 22.5 23.4 21.1 22.7 22.0 21.5 22.4 

Brahma BG II 22.4 21.0 22.8 22.9 22.5 23.4 22.5 22.1 22.9 


BCHH 322-2 BG II 22.3 21.2 21.3 23.2 22.3 22.3 22.1 21.6 22.6

73 

ENTOMOLOGICAL EVALUATION 

EVALUATION UNDER ETL BASED PLANT PROTECTION 

Weekly observations were recorded on sucking pest incidences and the mean data on 

Jassids (Table 62), whitefly (Table 63), Thrips (Table 64) and Aphids (Table 65) did not 

exhibit much variation between incidence on Bt hybrids and Non Bt check hybrids. 

Table 62. Jassid / plant under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coimbatore 

LAM 

Dharwad 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 

JK Gowri Bt (ET 1) 3.4 6.4 9.9 3.4 1.6 8.4 3.2 5.2 4.9 5.8 

Akka BG II 5.6 4.1 9.1 2.4 1.7 2.7 4.4 4.3 4.6 3.5 


KDCHH 441 BG II 4.6 4.5 18.3 0.9 1.8 2.1 2.3 4.9 6.0 2.2 

Ankur Jai Bt 10.4 4.5 18.8 1.1 1.6 4.7 2.5 6.2 7.3 3.6 


NCEH 13 Bt (FG) 3.2 6.5 14.9 1.9 1.4 2.5 2.9 4.8 5.6 2.7 

Tulasi 9 BG II 4.4 6.3 14.7 3.2 1.7 4.0 3.0 5.3 6.1 3.5 

Brahma BG II 3.2 4.1 14.2 3.2 1.6 3.2 3.1 4.7 5.3 3.2 


BCHH 322-2 BG II 4.4 4.3 11.2 2.4 1.8 2.1 3.1 4.2 4.8 2.6 

Table 63. Whitefly / plant under ETL based protection 

Entry 

Warangal 

Siruguppa 

Coimbatore 

LAM 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 


Akka BG II 5.8 3.5 0.1 0.5 2.5 3.1 0.5 


KDCHH 441 BG II 4.2 3.3 0.0 0.7 2.1 2.5 0.7 




Tulasi 9 BG II 3.2 2.8 0.0 0.0 1.5 2.0 0.0 

Brahma BG II 2.8 3.7 0.0 0.5 1.7 2.2 0.5 


BCHH 322-2 BG II 4.8 3.4 0.1 0.3 2.1 2.8 0.3 

!" #

74 

Table 64. Thrips / plant under ETL based protection 

Entry 

Warangal 

Siruguppa 

Raichur 

B'gudi 

Coimbatore 

LAM 

Dharwad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

JK Gowri Bt (ET 1) 14.2 3.3 1.7 9.2 0.1 1.4 6.5 5.2 5.7 3.9 

Akka BG II 32.6 2.9 0.7 16.3 0.0 1.9 8.4 9.0 10.5 5.2 


KDCHH 441 BG II 14.8 4.2 1.7 21.6 0.2 1.7 7.3 7.3 8.5 4.5 

Ankur Jai Bt 20.4 2.3 0.6 23.5 0.0 1.7 11.9 8.6 9.3 6.8 


NCEH 13 Bt (FG) 12.6 3.3 1.2 3.9 0.3 3.5 9.3 4.9 4.3 6.4 

Tulasi 9 BG II 8.4 2.7 2.7 6.9 0.1 2.7 8.5 4.6 4.1 5.6 

Brahma BG II 18.8 3.1 2.0 12.6 0.0 2.4 12.6 7.4 7.3 7.5 


BCHH 322-2 BG II 18.2 3.3 1.2 16.9 0.1 2.6 9.7 7.4 7.9 6.1 

Table 65. Aphid / plant under ETL based protection 

Entry 

B'gudi 

Coimbatore 

LAM 

Dharwad 

Overall 

mean 

Mean 

(I) 

Mean 

(RF) 


Akka BG II 2.8 14.4 2.9 1.5 5.4 8.6 2.2 


KDCHH 441 BG II 1.7 18.0 2.5 0.8 5.7 9.8 1.6 




Tulasi 9 BG II 1.2 14.2 1.1 0.8 4.3 7.7 1.0 

Brahma BG II 2.9 16.1 1.1 0.9 5.2 9.5 1.0 


BCHH 322-2 BG II 0.6 10.2 4.6 1.0 4.1 5.4 2.8

75 

As regards square damage by bollworms, there was higher damage in non-Bt hybrids as 

compared to Bt test hybrids under irrigated conditions (Table 66). Under rainfed 

conditions, higher level of square damage was reported at Dharwad uniformly in all the 

hybrids. However, at Lam, there was no damage to squares observed. 

Table 66. % Square Damage by Bollworm under ETL based protection 

Entry 

Warangal 

Raichur 

Coimbatore 

LAM 

Dharwad 

Overall 

mean 

Mean 

(I) 

!" # 

Mean 

(RF) 

JK Gowri Bt (ET 1) 0.0 0.0 0.0 0.0 17.1 3.4 0.0 8.6 

Akka BG II 0.0 0.7 0.0 0.0 16.0 3.3 0.2 8.0 


KDCHH 441 BG II 0.0 0.0 0.3 0.0 15.2 3.1 0.1 7.6 

Ankur Jai Bt 0.0 0.3 0.0 0.0 22.7 4.6 0.1 11.3 


NCEH 13 Bt (FG) 0.0 0.0 0.0 0.0 17.0 3.4 0.0 8.5 

Tulasi 9 BG II 2.1 0.3 0.6 0.0 10.1 2.6 1.0 5.1 

Brahma BG II 0.0 0.2 0.0 0.0 18.3 3.7 0.1 9.2 


BCHH 322-2 BG II 0.0 0.0 0.0 0.0 11.5 2.3 0.0 5.7 

Pink Bollworm under ETL based protection 

No incidence of pink bollworm was reported at Coimbatore and Lam where the data was 

recorded in green bolls. 


Very less damage to open boll on both boll as well as locule basis by bollworms was 

reported at Coimbatore and Lam (Table 67). However, at Siruguppa, Beemarayangudi 

and at Dharwad, higher damage was reported. 

Table 67. Open boll damage (%) under ETL based protection 

Entry 

Siruguppa 


B'gudi 

Coimbatore 

LAM 

Overall 

mean 

Siruguppa 

B'gudi 


Coimbatore 

LAM 

Dharwad 

Overall 

mean 

JK Gowri Bt (ET 1) 14.1 7.2 0.0 0.0 5.3 7.0 10.1 0.0 0.0 10.6 5.5 

Akka BG II 7.2 2.7 0.0 0.0 2.5 2.7 12.6 0.0 0.0 10.4 5.1 


KDCHH 441 BG II 8.0 1.7 0.0 0.0 2.4 10.3 12.0 0.0 0.0 15.2 7.5 

Ankur Jai Bt 7.4 5.3 0.7 0.0 3.3 3.2 12.2 0.0 0.0 16.2 6.3 


NCEH 13 Bt (FG) 12.9 3.8 0.0 0.0 4.2 9.3 9.6 0.0 0.0 14.4 6.7 

Tulasi 9 BG II 11.8 5.5 0.2 0.0 4.4 3.7 11.0 0.0 0.0 17.0 6.3 

Brahma BG II 8.2 4.7 0.0 0.0 3.2 5.6 11.9 0.0 0.0 23.1 8.1 


BCHH 322-2 BG II 6.7 6.9 0.0 0.0 3.4 3.4 10.3 0.0 0.0 17.5 6.2

76 


Under unprotected condition, germination and plant stand at harvest was satisfactory for 

all the hybrids tested in the trial (Table 68). 

Table 68. Germination and Plant Stand under Unprotected condition 

Entry 

Coimbatore 

Germination (%) Stand at harvest (No. of plants) 

Srivilliputhr 

LAM 

Overall 

mean 

Coimbatore 

LAM 

Overall 

mean 


Akka BG II 77.0 93.3 90.2 86.8 23.0 26.0 24.5 


KDCHH 441 BG II 93.0 92.2 89.6 91.6 28.0 27.0 27.5 




Tulasi 9 BG II 93.0 86.7 95.3 91.7 28.0 28.0 28.0 

Brahma BG II 77.0 84.4 84.4 81.9 23.0 25.3 24.2 


BCHH 322-2 BG II 77.0 94.4 85.2 85.5 23.0 26.0 24.5 

At Coimbatore and at Lam, very minimal damage to open boll was reported due to 

bollworms (Table 69). In contrast, higher level of damage was observed at Srivilliputhur, 

Aruppukottai and at Dharwad and there was not much variation between the hybrids. 

Table 69. Open Boll Damage – Boll basis (%) under Unprotected condition 

Entry 

Coimbatore 


Srivilliputhr 

LAM 

Aruppukottai 

Overall 

mean 

Coimbatore 

Srivilliputhr 

LAM 

Dharwad 

Aruppukottai 

!" # 

Overall 

mean 

JK Gowri Bt (ET 1) 0.0 8.9 0.0 8.6 4.4 0.0 10.2 0.0 10.9 8.4 5.9 

Akka BG II 0.0 18.7 0.0 8.9 6.9 0.0 22.9 0.0 7.8 8.5 7.9 


KDCHH 441 BG II 0.0 18.7 0.0 3.2 5.5 0.0 25.5 0.0 6.7 2.9 7.0 

Ankur Jai Bt 1.5 10.4 0.0 6.7 4.7 0.0 10.1 0.0 4.9 6.3 4.3 


NCEH 13 Bt (FG) 0.0 18.4 0.0 6.7 6.3 0.0 21.0 0.0 11.0 6.2 7.6 

Tulasi 9 BG II 0.0 17.2 0.0 6.6 6.0 0.0 11.8 0.0 11.3 6.2 5.9 

Brahma BG II 0.0 17.2 0.0 5.8 5.8 0.0 20.0 0.0 9.7 5.4 7.0 


BCHH 322-2 BG II 0.5 8.0 0.0 4.2 3.2 0.0 10.8 0.0 9.8 3.8 4.9

Seed cotton yield 

77 

The mean seed cotton yield recorded under unprotected conditions was the highest in 

KDCHH 441 BG II (1514 kg/ha) followed by Tulasi 9 BG II (1464 kg/ha) in irrigated 

situation whereas the Bt check hybrid registered a mean yield of 924 kg/ha (Table 70). 

All the test hybrids were superior in yield to RCH 2 Bt. 

Table 70. Seed cotton yield (kg/ha) in irrigated locations under unprotected 

conditions 


% Inc. over 


KDCHH 441 BG II 988 2040 1514 64 

Tulasi 9 BG II 787 2141 1464 58 


Brahma BG II 725 2091 1408 52 

Akka BG II 741 1794 1268 37 

Bunny (Non-Bt check) 586 1866 1226 33 

BCHH 322-2 BG II 556 1686 1121 21 

Ankur Jai Bt 1065 1143 1104 19 

JK Gowri Bt (ET 1) 494 1561 1028 11 

NCEH 13 Bt (FG) 417 1498 958 4 


Under rainfed situations, the highest seed cotton yield of 1717 kg/ha was noted in 

Tulasi 9 BG II with 21 % yield increase over RCH 2 Bt (1416 kg/ha) and four other 

hybrids also registered higher yield to a tune of 9 to 16 % over RCH 2 Bt (Table 71). 

Table 71. Seed cotton yield (kg/ha) in rainfed locations under unprotected 

conditions 

Entry LAM Aruppukottai Mean (RF) % Inc. over RCH 2 Bt 

Tulasi 9 BG II 1293 2141 1717 21 


Brahma BG II 1325 1936 1631 15 


KDCHH 441 BG II 1074 2015 1545 9 



BCHH 322-2 BG II 1164 1305 1235 -13 


Akka BG II 1025 1371 1198 -15 

JK Gowri Bt (ET 1) 674 1333 1004 -29 

!" #

78 

COMBINED REPORT OF INTRA HIRSUTUM HYBRID TRIALS 

(2006-07 & 2007-08) 

As listed in the second year evaluation trial, eight Bt cotton hybrids were evaluated for 

two successive years during 2006-07 and 2007-08 in South Zone. These hybrids were 

evaluated at six irrigated centres of AICCIP and five rainfed centres. The check Bt 

hybrids was RCH 2 Bt and non-Bt check hybrid was Bunny and local check hybrids. 

IRRIGATED LOCATIONS 

Germination and plant stand was good at both the years of evaluation in all the test 

entries and check hybrids (Table 72) 

Table 72. Germination Percentage and Plant Stand under protected & irrigated 

condition 

Entry 

Germination % 

Stand at harvest (number of 

plants) 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 91.7 88.3 90.0 54.0 48.8 51.4 

Ankur Jai Bt 94.2 92.8 93.5 56.0 50.7 53.3 

BCHH 322-2 BG II 86.1 86.7 86.4 48.5 47.2 47.8 

Brahma BG II 96.9 86.1 91.5 57.2 43.2 50.2 


JK Gowri Bt (ET 1) 93.6 84.4 89.0 55.7 41.0 48.4 

KDCHH 441 BG II 94.2 92.2 93.2 55.8 47.5 51.7 


NCEH 13 Bt (FG) 95.0 86.1 90.6 56.0 46.3 51.2 


Tulasi 9 BG II 93.6 88.9 91.2 55.7 46.3 51.0 

The mean boll weight ranged between 4.7 and 5.9 g while the mean ginning outturn 

ranged from 35.1 to 37.4 % over two years (Table 73). 

Table 73. Boll weight (g) and Ginning Outturn (%) under protected & irrigated 

condition 

Entry 

Mean boll weight (g) Mean Ginning Out Turn (%) 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 4.8 5.5 5.1 36.3 34.3 35.3 


BCHH 322-2 BG II 5.2 5.7 5.4 37.5 35.3 36.4 

Brahma BG II 5.6 6.2 5.9 37.4 35.4 36.4 



KDCHH 441 BG II 4.3 5.7 5.0 38.8 32.7 35.7 




Tulasi 9 BG II 5.3 5.8 5.6 37.1 36.5 36.8 

!" #

79 

Over two years average, the lint index ranged from 5.7 to 6.7 g while the seed index 

varied from 10.3 to 11.9 g (Table 74). 

Table 74. Lint index (g) and Seed Index (g) under protected & irrigated condition 

Entry 

Lint index Seed index (g) 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 6.5 6.0 6.3 11.2 11.6 11.4 


BCHH 322-2 BG II 6.4 6.3 6.4 10.7 11.7 11.2 

Brahma BG II 6.5 6.2 6.4 10.8 11.2 11.0 



KDCHH 441 BG II 5.8 5.6 5.7 9.2 11.5 10.3 




Tulasi 9 BG II 6.5 6.3 6.4 10.8 11.0 10.9 

Combined mean of seed cotton yield indicated the superiority of all the test hybrids over 

RCH 2 Bt except NCEH 13 Bt (FG) and JK Gowri Bt (Table 75). The test hybrid 

Brahma BG II was the best with 2524 kg/ha registering 12 % yield increase over RCH 2 

Bt. Five other test hybrids were superior to Bt check with 4 to 11 % yield increase. 

Table 75. Seed cotton yield (kg/ha) under protected & irrigated condition 

Entry 

Seed cotton yield (kg/ha) % Inc. over RCH 


2006-07 2007-08 Mean 

Brahma BG II 2560 2488 2524 12 


BCHH 322-2 BG II 2010 2854 2432 8 

Tulasi 9 BG II 2169 2621 2395 7 

Akka BG II 2205 2552 2378 6 

KDCHH 441 BG II 2009 2671 2340 4 


NCEH 13 Bt (FG) 2068 1965 2016 -10 




!" #

80 

Several hybrids were found superior to check hybrids in terms of fibre length (Table 76) 

but there was not much variation in micronaire value evident over the year. 

Table 76. 2.5% Span length (mm) and Micronaire under protected & irrigated 

condition 

Entry 

2.5% span length (mm) Micronaire value 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 33.5 34.0 33.7 4.3 4.4 4.4 


BCHH 322-2 BG II 33.8 31.7 32.7 4.5 4.5 4.5 

Brahma BG II 31.9 32.3 32.1 4.5 4.3 4.4 



KDCHH 441 BG II 29.4 29.3 29.4 4.2 4.6 4.4 




Tulasi 9 BG II 31.5 31.8 31.6 5.0 4.5 4.8 

Not much variation across the hybrid and across the year was observed for both fibre 

strength and uniformity ratio (Table 77). Several hybrids were superior to Bt check 

hybrid in terms of fibre strength and as high as 23.3 g/tex was noted in Akka BG II. 

Table 77. Fibre Strength (g/tex) and Uniformity ratio under protected & irrigated 

condition 

Entry 

Strength (g/tex) 

Uniformity ratio 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 23.6 22.9 23.3 48.3 48.2 48.3 


BCHH 322-2 BG II 22.5 21.6 22.0 48.7 49.7 49.2 

Brahma BG II 22.6 22.1 22.3 49.5 49.2 49.4 



KDCHH 441 BG II 21.1 20.5 20.8 47.7 49.8 48.7 




Tulasi 9 BG II 21.7 21.5 21.6 48.2 48.7 48.4 

!" #

81 

For sucking pest like jassids, white fly, thrips and aphid per plant, not much variation was 

noticed between Bt and non Bt hybrids (Tables 78 & 79). However, incidence of pest 

like aphids varied across the year. 

Table 78. Number of Jassids / plant and White flies / plant under irrigated protected 

condition 

Entry 

Jassid/ plant Whitefly/ plant 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 4.2 4.6 4.4 1.2 3.1 2.2 


BCHH 322-2 BG II 3.7 4.8 4.3 1.3 2.8 2.0 

Brahma BG II 3.5 5.3 4.4 1.5 2.2 1.8 



KDCHH 441 BG II 4.6 6.0 5.3 1.1 2.5 1.8 




Tulasi 9 BG II 3.9 6.1 5.0 0.8 2.0 1.4 

Table 79. Number of Thrips / plant and Aphids / plant under protected & irrigated 

condition 

Entry 

Thrips/ plant Aphid/plant 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 3.8 10.5 7.1 23.0 8.6 15.8 


BCHH 322-2 BG II 3.6 7.9 5.8 22.9 5.4 14.1 

Brahma BG II 3.7 7.3 5.5 29.3 9.5 19.4 



KDCHH 441 BG II 4.0 8.5 6.2 28.4 9.8 19.1 




Tulasi 9 BG II 3.6 4.1 3.9 18.5 7.7 13.1 

!" #

82 

Under irrigated conditions, non Bt hybrids registered more number of pink bollworm and 

higher damage to green bolls and squares as against Bt hybrids (Table 80). 

Table 80. Pink boll worm damage in green bolls (%), Number of Pink boll worm 

larvae / 20 bolls and Per cent square damage under protected & 

irrigated condition 

Entry 


% square damage by 

Bollworms 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 6.9 0.0 3.5 0.7 0.0 0.4 1.4 0.2 0.8 


BCHH 322-2 BG II 5.3 0.0 2.6 1.0 0.0 0.5 1.7 0.0 0.8 

Brahma BG II 4.2 0.0 2.1 0.8 0.0 0.4 1.4 0.1 0.7 



KDCHH 441 BG II 6.4 0.0 3.2 0.8 0.0 0.4 1.0 0.1 0.5 




Tulasi 9 BG II 6.9 0.0 3.5 0.7 0.0 0.4 1.5 1.0 1.3 

The mean data pertaining to open boll damage due to bollworms in terms of boll basis 

and locule basis is furnished in Table 81. All the Bt hybrids were superior to non Bt 

hybrids in terms of boll damage except JK Gowri Bt (ET 1). 

Table 81. Open boll damage (%) - Boll and locule basis under protected & irrigated 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 6.0 3.3 4.7 5.6 5.1 5.4 


BCHH 322-2 BG II 5.4 4.5 5.0 3.5 4.5 4.0 

Brahma BG II 5.1 4.3 4.7 6.0 5.8 5.9 



KDCHH 441 BG II 5.8 3.2 4.5 6.2 7.4 6.8 




Tulasi 9 BG II 4.5 5.8 5.2 8.5 4.9 6.7 

!" #

83 

Under unprotected condition, however, on boll basis several Bt entries showed either 

equal or higher damage as that of non Bt check hybrid (Table 82). On locule basis, all 

the hybrids except KDCHH 441 BG II had lesser damage due to bollworms. 

Table 82. Open boll damage (%) - Boll and locule basis under unprotected & 

irrigated condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 6.8 9.4 8.1 6.8 11.5 9.1 


BCHH 322-2 BG II 5.2 4.3 4.8 5.2 5.4 5.3 

Brahma BG II 14.5 8.6 11.5 18.5 10.0 14.2 



KDCHH 441 BG II 13.8 9.3 11.6 17.2 12.7 15.0 




Tulasi 9 BG II 4.9 8.6 6.8 11.0 5.9 8.4 

Under unprotected condition, the highest mean seed cotton yield over the two year was 

recorded in the hybrid Tulasi 9 BG II (1511 kg/ha) with 26 yield increase over RCH 2 Bt 

(1195 kg/ha). The test hybrid NCEH 13 Bt performed poorly recording the lowest yield 

of 1072 kg/ha. 

Table 83. Mean seed cotton yield (kg/ha) under unprotected & irrigated condition 

Entry 

Seed cotton yield (kg/ha) 

2006-07 2007-08 Mean 

% Inc. over RCH 2 Bt 

Tulasi 9 BG II 1557 1464 1511 26 


Akka BG II 1494 1268 1381 16 


JK Gowri Bt (ET 1) 1447 1028 1237 4 

Brahma BG II 1055 1408 1232 3 

BCHH 322-2 BG II 1342 1121 1231 3 


KDCHH 441 BG II 738 1514 1126 -6 


NCEH 13 Bt (FG) 1186 958 1072 -10 

!" #

84 

COMBINED REPORT OF RAINFED LOCATIONS (2006-07 & 2007-08) 

As observed in irrigated locations, in rainfed locations also, there was satisfactory 

germination of all the hybrids and proper plant stand was maintained (Table 84). 

Table 84. Germination Percentage and Plant Stand under protected & rainfed 

condition 

Entry 

Germination % 


plants) 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 94.8 98.0 96.4 54.2 56.3 55.3 


BCHH 322-2 BG II 77.6 96.0 86.8 46.9 59.3 53.1 

Brahma BG II 95.2 94.0 94.6 54.3 58.7 56.5 



KDCHH 441 BG II 94.1 100.0 97.0 53.8 57.7 55.7 




Tulasi 9 BG II 92.0 98.0 95.0 53.1 59.3 56.2 

For boll weight, Brahma BG II was the best hybrid (5.0 g) and for ginning outturn Tulasi 

9 BG II registered highest value of 36.7 % (Table 85). 

Table 85. Boll weight (g) and Ginning Outturn (%) under protected & rainfed 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 4.5 4.7 4.6 34.4 34.5 34.5 


BCHH 322-2 BG II 4.9 4.5 4.7 35.8 35.1 35.5 

Brahma BG II 5.0 4.9 5.0 35.7 35.8 35.7 



KDCHH 441 BG II 4.4 4.8 4.6 36.8 33.2 35.0 




Tulasi 9 BG II 4.6 4.9 4.8 36.1 37.4 36.7 

!" #

For both lint index and seed index, there was not much variation between the years and 

between the hybrids (Table 86). 

Table 86. Lint index (g) and Seed Index (g) under protected & rainfed condition 

Entry 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 5.7 5.7 5.7 10.3 10.4 10.3 


BCHH 322-2 BG II 5.6 6.2 5.9 10.0 10.9 10.5 

Brahma BG II 5.5 6.0 5.8 10.5 10.8 10.7 



KDCHH 441 BG II 5.6 5.8 5.7 9.7 11.3 10.5 




Tulasi 9 BG II 6.3 6.2 6.2 9.9 10.4 10.2 

85 


The mean seed cotton yield recorded over the two years is furnished in Table 87. The 

test hybrid KDCHH 441 BG II was found to be the best recording 2296 kg/ha under 

rainfed locations with 17 % yield increase over the Bt check hybrid. Only NCEH 13 Bt 

was found to record lower yield than Bt check hybrid and all the test hybrids were 

superior to non Bt check hybrids. 

Table 87. Seed cotton yield (kg/ha) under protected & rainfed condition 

Entry 


2006-07 2007-08 Mean 

% Inc. over 


KDCHH 441 BG II 2209 2383 2296 16.7 

Tulasi 9 BG II 2095 2328 2212 12.4 

Ankur Jai Bt 2167 2191 2179 10.8 

Brahma BG II 2129 2144 2136 8.6 

Akka BG II 2112 2113 2113 7.4 

JK Gowri Bt (ET 1) 1897 2263 2080 5.8 

BCHH 322-2 BG II 2000 1950 1975 0.4 

RCH 2 Bt (Bt check) 2037 1898 1967 0.0 

NCEH 13 Bt (FG) 2158 1775 1966 0.0 

Bunny (Non-Bt check) 1961 1748 1854 -5.7 

LC (Hybrid Check) 1814 1810 1812 -7.9 

!" #

86 

Fibre quality evaluation over the two years are furnished in Tables 88 and 89. For fibre 

length some test hybrids like Akka BG II and Ankur Jai Bt were found superior and for 

fibre strength Brahma BG II was the best with 22.8 g/tex. 

Table 88. 2.5% Span length (mm) and Micronaire under protected & rainfed 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 33.4 32.3 32.8 4.6 4.2 4.4 


BCHH 322-2 BG II 33.0 29.8 31.4 4.3 4.2 4.2 

Brahma BG II 31.7 31.4 31.5 4.3 4.2 4.3 



KDCHH 441 BG II 27.9 28.3 28.1 4.5 4.4 4.5 




Tulasi 9 BG II 31.7 29.4 30.5 4.5 4.3 4.4 

Table 89. Fibre Strength (g/tex) and Uniformity ratio under protected & rainfed 

condition 

Entry 

Strength (g/tex) 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 21.7 22.8 22.2 47.5 47.9 47.7 


BCHH 322-2 BG II 22.6 22.6 22.6 46.7 49.3 48.0 

Brahma BG II 22.7 22.9 22.8 47.5 49.7 48.6 



KDCHH 441 BG II 19.0 21.7 20.3 47.6 49.5 48.5 




Tulasi 9 BG II 20.5 22.4 21.4 48.6 49.3 49.0 

!" #

87 

All the test hybrids and check hybrids showed equal reaction to sucking pests like jassids, 

white fly, thrips and aphids per plant (Tables 90 & 91). 

Table 90. Number of Jassids / plant and White flies / plant under rainfed protected 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 2.1 3.5 2.8 0.9 0.5 0.7 


BCHH 322-2 BG II 2.9 2.6 2.7 0.7 0.3 0.5 

Brahma BG II 2.0 3.2 2.6 0.9 0.5 0.7 



KDCHH 441 BG II 2.2 2.2 2.2 1.0 0.7 0.8 




Tulasi 9 BG II 2.4 3.5 2.9 0.8 0.0 0.4 

Table 91. Number of Thrips / plant and Aphids / plant under protected & rainfed 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 15.3 5.2 10.2 1.2 2.2 1.7 


BCHH 322-2 BG II 15.3 6.1 10.7 1.6 2.8 2.2 

Brahma BG II 15.1 7.5 11.3 2.8 1.0 1.9 



KDCHH 441 BG II 12.8 4.5 8.7 1.2 1.6 1.4 




Tulasi 9 BG II 13.2 5.6 9.4 2.1 1.0 1.5 

!" #

88 

For pink boll worm damage and number in green bolls, all the test hybrids recorded less 

damage except JK Gowri Bt (ET 1). For square damage, highest damage of 6.8 % was 

noted in JK Gowri Bt (ET 1) followed by Ankur Jai Bt (6.4 %) while other hybrids 

showed lesser damage (Table 92). 


larvae / 20 bolls and Per cent square damage under protected & rainfed 

condition 

Entry 



Bollworms 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 8.3 0.0 4.2 0.7 0.0 0.4 2.5 8.0 5.3 


BCHH 322-2 BG II 12.5 0.0 6.3 0.4 0.0 0.2 2.3 5.7 4.0 

Brahma BG II 16.7 0.0 8.3 1.3 0.0 0.7 1.9 9.2 5.5 



KDCHH 441 BG II 7.5 0.0 3.7 3.0 0.0 1.5 1.6 7.6 4.6 




Tulasi 9 BG II 14.2 0.0 7.1 0.1 0.0 0.0 1.4 5.1 3.2 

Combined mean of open boll damage on both boll and locule basis is furnished in 

Table 93. Comparatively, less damage was recorded in the current year as compared to 

last year on both boll and locule basis. Some Bt hybrids have recorded higher damage as 

compared to non Bt check hybrid. 

Table 93. Open boll damage (%) - Boll and locule basis under protected & rainfed 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 11.9 0.0 6.0 11.5 5.2 8.3 


BCHH 322-2 BG II 13.9 0.0 7.0 13.0 8.7 10.9 

Brahma BG II 12.4 0.0 6.2 12.4 11.5 12.0 



KDCHH 441 BG II 12.6 0.0 6.3 9.7 7.6 8.6 




Tulasi 9 BG II 8.9 0.0 4.5 7.9 8.5 8.2 

!" #

89 

Under unprotected conditions, however, higher boll damage was recorded in the current 

year on both boll basis and locule basis (Table 94). In this case also, some Bt hybrids 

registered higher boll damage as compared to non Bt check hybrid. 

Table 94. Open boll damage (%) - Boll and locule basis under unprotected & 

rainfed condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 

Akka BG II 3.2 4.5 3.8 2.7 5.4 4.1 


BCHH 322-2 BG II 8.3 2.1 5.2 3.3 4.5 3.9 

Brahma BG II 15.2 2.9 9.0 3.6 5.0 4.3 



KDCHH 441 BG II 8.0 1.6 4.8 7.5 3.2 5.3 




Tulasi 9 BG II 6.4 3.3 4.9 4.5 5.8 5.2 

Under unprotected rainfed situations, the highest mean seed cotton yield of 1555 kg/ha 

was observed with 13 % yield increase over RCH 2 Bt. All the Bt hybrids were superior 

to non Bt check hybrid Bunny. 

Table 95. Mean seed cotton yield (kg/ha) under unprotected & rainfed condition 

Entry 


2006-07 2007-08 Mean 

% Inc. over 


Tulasi 9 BG II 1392 1717 1555 13 




KDCHH 441 BG II 1300 1545 1422 3 

Brahma BG II 1145 1631 1388 1 


BCHH 322-2 BG II 1398 1235 1316 -4 

Akka BG II 1430 1198 1314 -4 



!" #

90 

EVALUATION OF INTERSPECIFIC (G. HIRSUTUM X G. BARBADENSE) 

HYBRIDS 

Trial entries 

In the first year trial, nine interspecific hybrids (hirsutum x barbadense) were 

evaluated along with MRC 6918 as Bt check hybrid and DCH 32 as non Bt check hybrid. 

The list of test hybrids and the sponsoring company is furnished here below. 

S. No. Name of the hybrid Name of the Company 

1. SP 911 B2 (Minerva) Bayer Bioscience Pvt. Limited. 

2. MLBCH-6 BGII Emergent Genetics India Pvt. Ltd. 

3. GBCH 03 Green Gold Seeds Ltd. 

4. JKCHB 5 Bt J. K. Agri Genetics Ltd. 

5. JKCHB-229 Bt J. K. Agri Genetics Ltd. 

6. KDCHB 407 BGII Krishidhan seeds Ltd. 

7. NCEH-23 Nath Seeds Ltd. 

8. RCHB- 720 BG II Rasi Seed Co. Ltd. 

9. ZCH-50007 Zuari Seeds Ltd 

Trial Locations 

The trial was conducted at four different locations: 

1. Agricultural Research Station, Amravati, Lam, Acharya N. G. Ranga Agricultural 

University, Andhra Pradesh, 

2. Agricultural Research Station, Dharwad, University of Agricultural Sciences, 

Karnataka, 

3. Agricultural Research Station, Beemarayangudi, University of Agricultural 

Sciences, Karnataka, and 

4. Cotton Research Station, Tamil Nadu Agricultural University, Coimbatore. 

Trial Details 

No.of Entries : 9 + 2 check 

No.of Rows : Yield Trial : 5 Rows 

: Screening trials : 2 Rows 

Row length : 6 m 

Spacing: : 120 x 60 cm 

No.of Replications : Four 

Design : Randomized Block Design 

Fertilizers : As per recommendations 

Germination and Plant stand 

!" #

91 

Desirable germination was recorded and good plant stand was maintained in all the 

hybrids as furnished in the Table 96. 

Table 96. Germination and Plant stand under ETL based protection 

Entry 

Germination (%) Plant stand at harvest 

Coimbatore B'gudi Coimbatore LAM Mean 

MLBCH-6 BGII 85.0 46.7 57.0 58.7 54.1 

MRC 6918 Bt (Bt Check) 85.6 47.0 55.7 59.7 54.1 

SP 911 B2 (Minerva) 87.2 41.3 49.7 59.3 50.1 

KDCHB 407 BGII 86.1 48.7 52.0 59.0 53.2 

JKCHB-229 Bt 89.4 48.0 53.7 60.0 53.9 

ZCH-50007 89.4 47.3 57.7 59.0 54.7 

NCEH-23 88.3 45.7 58.7 60.0 54.8 

JKCHB 5 Bt 90.6 44.7 57.7 59.7 54.0 

DCH 32 (Non Bt Check) 91.1 47.3 57.7 59.7 54.9 

RCHB- 720 BG II 86.7 48.0 57.3 59.3 54.9 

GBCH 03 90.6 46.3 56.0 59.3 53.9 

Boll weight 

The mean boll weight ranged from 3.6 g to 4.4 g in the hybrids (Table 97). All the test 

hybrids were better than the Bt check hybrid. 

Table 97. Mean boll weight under ETL based protection 

Entry Coimbatore LAM Dharwad Mean 

MLBCH-6 BGII 4.8 4.0 4.2 4.3 

MRC 6918 Bt (Bt Check) 4.4 3.5 2.9 3.6 

SP 911 B2 (Minerva) 4.4 3.7 3.9 4.0 

KDCHB 407 BGII 4.6 3.5 4.1 4.0 

JKCHB-229 Bt 4.6 3.6 3.5 3.9 

ZCH-50007 4.6 3.8 4.2 4.2 

NCEH-23 4.5 4.0 3.9 4.2 

JKCHB 5 Bt 4.6 3.9 3.5 4.0 

DCH 32 (Non Bt Check) 4.8 4.0 3.8 4.2 

RCHB- 720 BG II 4.7 4.1 4.3 4.4 

GBCH 03 4.9 3.4 4.0 4.1 

!" #

Ginning out turn 

92 

The ginning outturn data was recorded in Dharwad, Coimbatore and Lam and the mean 

data varied between 31.5 and 34.0 % (Table 98). Six test hybrids were better than the Bt 

check hybrid. 

Table 98. Ginning Outturn (%) under ETL based protection 


MLBCH-6 BGII 31.3 30.8 33.3 31.8 


SP 911 B2 (Minerva) 32.6 33.5 34.9 33.6 

KDCHB 407 BGII 32.5 35.3 34.3 34.0 


ZCH-50007 32.1 33.6 33.9 33.2 

NCEH-23 32.8 33.7 33.6 33.4 



RCHB- 720 BG II 31.1 32.5 31.0 31.5 

GBCH 03 33.6 33.8 34.6 34.0 

Lint Index 

The lint index ranged from 5.7 to 6.4 g in the hybrids (Table 99). All the test hybrids 

recorded higher lint index as compared to Bt check hybrid. 



MLBCH-6 BGII 6.1 5.3 6.0 5.8 


SP 911 B2 (Minerva) 6.3 5.2 5.9 5.8 

KDCHB 407 BGII 6.0 5.3 5.8 5.7 


ZCH-50007 6.1 5.1 6.2 5.8 

NCEH-23 6.4 4.9 6.1 5.8 



RCHB- 720 BG II 6.8 6.4 4.9 6.0 

GBCH 03 7.0 5.2 6.9 6.4 

!" #

Seed Index 

93 

The range of seed index in hybrids was between 11.3 and 13.6 g (Table 100). Six test 

hybrids were better than the Bt check hybrid. 



MLBCH-6 BGII 13.3 11.2 12.0 12.2 


SP 911 B2 (Minerva) 13.0 10.0 11.0 11.3 

KDCHB 407 BGII 12.4 11.1 11.0 11.5 


ZCH-50007 12.9 9.9 12.0 11.6 

NCEH-23 13.0 11.0 12.0 12.0 



RCHB- 720 BG II 15.0 13.9 11.0 13.3 

GBCH 03 13.8 10.2 13.0 12.3 

MEAN SEED COTTON YIELD UNDER ETL BASED PLANT PROTECTION 

The data on mean seed cotton yield indicated that the test hybrid JKCHB 5 Bt was the 

best one recording 2880 kg/ha with 31 % more yield than MRC 6918 Bt and 60 % higher 

yield than DCH 32 (Table 101). GBCH 03 and ZCH 50007 recorded lesser yield than the 

Bt check hybrid but higher yield over Non-Bt check hybrid DCH 32. 

Table 101. Seed Cotton yield (kg/ha) under ETL based protection 

Entry 

Coimbatore 

LAM 

Dharwad 

Mean 

% Inc. over 

MRC 6918 

(Bt check) 

!" # 

% Inc. 

over 

DCH 32 

(Non-Bt 

check) 

JKCHB 5 Bt 2667 2867 3107 2880 31 60 

JKCHB-229 Bt 2503 2782 2638 2641 20 47 

MLBCH-6 BGII 2644 2537 2599 2593 18 44 

KDCHB 407 BGII 2560 2618 2605 2594 18 44 

NCEH-23 2255 2784 2802 2613 18 45 

SP 911 B2 (Minerva) 2907 1993 2754 2551 16 42 

RCHB- 720 BG II 2116 2409 2241 2255 2 25 

MRC 6918 Bt (Bt Check) 2329 1887 2404 2206 0 23 

GBCH 03 2139 1829 1853 1940 -12 8 

ZCH-50007 1593 2141 2034 1923 -13 7 

DCH 32 (Non Bt Check) 1588 1742 2070 1800 -18 0 

CD @ 5% 483 405 447 

CV % 12 10 11

Lint Yield 

94 

For lint yield also the test hybrid JKCHB 5 Bt was the best (972 kg/ha) 

(Table 102). In this case also, all the other test hybrids showed yield superiority over non 

Bt check hybrid. 

Table 102. Lint yield (kg/ha) under ETL based protection 


JKCHB 5 Bt 863 1022 1030 972 

KDCHB 407 BGII 833 923 895 884 

NCEH-23 740 938 940 873 

SP 911 B2 (Minerva) 948 667 961 859 

JKCHB-229 Bt 778 902 879 853 

MLBCH-6 BGII 828 769 865 821 

MRC 6918 Bt (Bt Check) 741 648 797 728 

RCHB- 720 BG II 663 782 694 713 

GBCH 03 718 618 641 659 

ZCH-50007 512 718 689 640 

DCH 32 (Non Bt Check) 519 572 730 607 

Fibre quality Evaluation 

The fibre length ranged between 33.3 mm and 36.8 mm and micronaire ranged between 

3.1 and 3.5 (Table 103). 

Table 103. Fibre length and Micronaire under ETL based protection 

Entry 

2.5% span length (mm) Micronaire 

Coimbatore LAM Mean Coimbatore LAM Mean 

MLBCH-6 BGII 35.0 33.5 34.2 3.8 3.0 3.4 

MRC 6918 Bt (Bt Check) 35.4 32.2 33.8 3.5 3.1 3.3 

SP 911 B2 (Minerva) 34.4 32.2 33.3 3.9 3.1 3.5 

KDCHB 407 BGII 34.4 32.2 33.3 3.7 3.2 3.4 

JKCHB-229 Bt 37.1 35.1 36.1 3.6 3.1 3.4 

ZCH-50007 35.0 34.2 34.6 3.7 2.6 3.1 

NCEH-23 34.9 33.5 34.2 3.6 2.9 3.3 

JKCHB 5 Bt 38.0 35.1 36.6 3.6 3.4 3.5 

DCH 32 (Non Bt Check) 37.2 36.4 36.8 3.8 3.1 3.5 

RCHB- 720 BG II 37.6 34.3 36.0 3.4 2.8 3.1 

GBCH 03 35.7 33.1 34.4 3.9 2.6 3.3 

!" #

95 

Several test hybrids registered bundle strength of more than 26 g/tex (Table 104) and 

there was not much variation in uniformity ratio. 

Table 104 . Bundle strength and Uniformity Ratio under ETL based protection 

Entry 

Bundle strength Uniformity ratio 


MLBCH-6 BGII 24.8 25.0 24.9 49.3 46.8 48.1 


SP 911 B2 (Minerva) 23.5 24.2 23.8 51.7 47.5 49.6 

KDCHB 407 BGII 24.4 24.4 24.4 50.7 47.0 48.8 


ZCH-50007 28.4 27.4 27.9 51.3 48.0 49.7 

NCEH-23 22.9 24.4 23.7 47.7 47.9 47.8 



RCHB- 720 BG II 27.0 26.2 26.6 49.0 47.3 48.1 

GBCH 03 25.8 25.5 25.7 49.0 46.7 47.9 


EVALUATION UNDER PLANT PROTECTION (ETL BASED) 

Sucking pests (Jassids, Whitefly, Thrips and Aphids population) 

The mean number of jassids (Table 105), white flies (Table 106), Thrips (Table 107) and 

Aphids (Table 108) per plant recorded in the hybrids indicated not much variation 

between Bt and non Bt hybrid. 

Table 105. Number of Jassids / plant under ETL based protection 

Entry B'gudi Coimbatore LAM Dharwad Mean 

MLBCH-6 BGII 3.8 2.9 2.0 3.3 3.0 


SP 911 B2 (Minerva) 1.3 2.5 2.7 3.8 2.6 

KDCHB 407 BGII 4.3 3.6 2.6 5.9 4.1 


ZCH-50007 4.7 3.4 5.1 4.8 4.5 

NCEH-23 1.4 3.0 2.3 3.0 2.4 



RCHB- 720 BG II 1.3 3.6 2.1 4.1 2.8 

GBCH 03 2.7 4.4 7.2 5.4 4.9 

!" #

Table 106. Number of white flies / plant under ETL based protection 

Entry Coimbatore LAM Mean 

MLBCH-6 BGII 0.0 0.6 0.3 

MRC 6918 Bt (Bt Check) 0.0 0.5 0.2 

SP 911 B2 (Minerva) 0.1 0.3 0.2 

KDCHB 407 BGII 0.1 0.5 0.3 

JKCHB-229 Bt 0.1 0.4 0.3 

ZCH-50007 0.1 0.3 0.2 

NCEH-23 0.0 0.6 0.3 

JKCHB 5 Bt 0.1 0.4 0.3 

DCH 32 (Non Bt Check) 0.1 0.5 0.3 

RCHB- 720 BG II 0.1 0.5 0.3 

GBCH 03 0.0 0.5 0.3 

Table 107. Number of thrips / plant under ETL based protection 

96 


MLBCH-6 BGII 9.4 0.1 1.2 7.5 4.6 


SP 911 B2 (Minerva) 12.1 0.1 0.5 13.3 6.5 

KDCHB 407 BGII 9.9 0.5 0.3 28.1 9.7 


ZCH-50007 13.5 0.0 0.4 11.5 6.3 

NCEH-23 5.4 0.1 0.5 10.3 4.1 



RCHB- 720 BG II 13.9 0.0 1.1 7.2 5.5 

GBCH 03 13.2 0.0 0.1 9.1 5.6 

Table 108. Number of aphids / plant under ETL based protection 


MLBCH-6 BGII 5.0 11.6 1.9 0.2 4.7 


SP 911 B2 (Minerva) 3.6 12.6 1.7 1.3 4.8 

KDCHB 407 BGII 3.2 22.0 1.4 0.0 6.7 


ZCH-50007 2.3 12.7 3.2 0.9 4.8 

NCEH-23 3.3 13.9 1.4 0.6 4.8 



RCHB- 720 BG II 3.7 10.9 2.3 2.2 4.8 

GBCH 03 3.0 11.0 1.6 0.8 4.1 

!" #

97 

No square damage was recorded at Coimbatore and Lam but at Dharwad damage was 

reported but there was not much difference between the Bt test hybrids and the non-Bt 

hybrid (Table 109). 

Table 109. Square damage (%) under ETL based protection 


MLBCH-6 BGII 0.0 0.0 5.0 1.7 


SP 911 B2 (Minerva) 0.0 0.0 3.4 1.1 

KDCHB 407 BGII 0.0 0.0 6.6 2.2 


ZCH-50007 0.0 0.0 3.7 1.2 

NCEH-23 0.0 0.0 6.1 2.0 



RCHB- 720 BG II 0.0 0.0 6.1 2.0 

GBCH 03 0.0 0.0 7.6 2.5 

Pink bollworm incidence was low at Coimbatore and Lam and the non Bt check hybrid 

DCH 32 recorded higher level of incidence and damage (Table 110). 

Table 110. Pink bollworm number and damage in green boll 

Pink bollworm / 20 green Pink bollworm damage in green 

Entry 

boll 

boll 

Coimbatore Lam Mean Coimbatore Lam Mean 

MLBCH-6 BGII 0.0 0.0 0.0 0.0 0.0 0.0 


SP 911 B2 (Minerva) 0.0 0.0 0.0 0.0 0.0 0.0 

KDCHB 407 BGII 0.5 0.0 0.3 2.5 0.0 1.3 


ZCH-50007 0.0 0.0 0.0 0.0 0.0 0.0 

NCEH-23 0.0 0.0 0.0 0.0 0.0 0.0 



RCHB- 720 BG II 0.0 0.0 0.0 0.0 0.0 0.0 

GBCH 03 0.0 0.0 0.0 0.0 0.0 0.0 

!" #

Open boll and Locule damage 

98 

Open boll damage was low at Coimbatore and Lam and there was moderate difference in 

the locule damage between the hybrids (5.4 – 10.0 %) (Table 111). 

Table 111. Open boll damage on boll and locule basis 

Entry 


B'gudi 

Coimbatore 

LAM 

Mean 

B'gudi 


MLBCH-6 BGII 0.0 0.0 0.0 0.0 15.6 0.0 0.0 6.1 5.4 

MRC 6918 Bt (Bt Check) 2.0 0.0 0.0 0.7 24.9 0.0 0.0 11.1 9.0 

SP 911 B2 (Minerva) 0.0 0.0 0.0 0.0 21.6 0.0 0.0 11.6 8.3 

KDCHB 407 BGII 1.0 0.0 0.0 0.3 18.0 0.5 0.0 20.4 9.7 

JKCHB-229 Bt 0.9 0.0 0.0 0.3 19.3 0.0 0.0 8.9 7.0 

ZCH-50007 2.7 0.3 0.0 1.0 20.3 0.0 0.0 14.6 8.7 

NCEH-23 0.0 0.0 0.0 0.0 20.8 0.0 0.0 11.1 8.0 

JKCHB 5 Bt 2.8 0.0 0.0 0.9 18.4 0.0 0.0 14.2 8.1 

DCH 32 (Non Bt Check) 1.0 0.2 0.0 0.4 23.1 2.0 0.0 11.7 9.2 

RCHB- 720 BG II 0.0 0.5 0.0 0.2 19.1 2.8 0.0 16.8 9.7 

Coimbatore 

LAM 

!" # 

Dharwad 

Mean 

GBCH 03 0.0 0.0 0.0 0.0 19.6 0.0 0.0 20.6 10.0 


Germination and plant stand were satisfactory at Coimbatore and Lam (Table 112). 

Table 112. Germination and plant stand under unprotected condition 

Entry 

Germination (%) 

Plant Stand 


MLBCH-6 BGII 90.0 91.2 90.6 27.0 28.3 27.7 


SP 911 B2 (Minerva) 77.0 85.2 81.1 23.0 26.0 24.5 

KDCHB 407 BGII 83.0 89.6 86.3 25.0 27.0 26.0 


ZCH-50007 90.0 97.9 94.0 27.0 26.0 26.5 

NCEH-23 83.0 90.2 86.6 25.0 26.0 25.5 



RCHB- 720 BG II 90.0 90.3 90.2 27.0 26.0 26.5 

GBCH 03 90.0 98.4 94.2 27.0 28.7 27.9

99 

At Coimbatore only JKCHB 5 Bt (1.0 %) and DCH 32 (1.5 %) registered open boll 

damage on boll basis (Table 113). On locule basis, lesser damage was recorded in SP 

911 B2 and KDCHB 407 BG II while other hybrids had considerably higher damage. 

Table 113. Open boll damage on boll basis and locule basis under unprotected 

condition 

Entry 

Boll basis 

Coimbatore Coimbatore 

Locule Basis 

Dharwad Mean 

MLBCH-6 BGII 0.0 0.0 21.0 10.5 


SP 911 B2 (Minerva) 0.0 0.0 6.1 3.0 

KDCHB 407 BGII 0.0 0.0 7.8 3.9 


ZCH-50007 0.0 0.0 13.1 6.6 

NCEH-23 0.0 0.5 18.6 9.6 



RCHB- 720 BG II 0.0 0.0 16.3 8.2 

GBCH 03 0.0 0.0 18.6 9.3 

All the test Bt hybrids recorded higher seed cotton yield than the Bt and non-Bt check 

hybrid, except ZCH 50007 and GBCH 03. The highest seed cotton yield of 1631 kg/ha 

was recorded in JKCHB 5 Bt with 32 % yield increase over MRC 6918 and 39 % 

increase over DCH 32 (Table 114). 

Table 114. Mean seed cotton yield (kg/ha) under unprotected condition 


% Inc. 

over 

MRC 

6918 

!" # 

% In. 

over 

DCH 32 

JKCHB 5 Bt 579 471 3844 1631 32 39 

JKCHB-229 Bt 1308 425 2798 1510 22 28 

MLBCH-6 BGII 255 309 3908 1491 21 27 

NCEH-23 255 397 3600 1417 15 21 

KDCHB 407 BGII 428 462 3259 1383 12 18 

SP 911 B2 (Minerva) 208 277 3646 1377 12 17 

RCHB- 720 BG II 208 231 3393 1277 4 9 



ZCH-50007 324 314 2759 1132 -8 -4 

GBCH 03 382 378 2440 1067 -14 -9 


There was very less incidence of diseases like Alternaria leaf spot, bacterial leaf blight 

and rust in interspecific hybrids at Beemarayangudi, Guntur and Coimbatore. Late 

season mild leaf reddening has been reported to occur in some interspecific hybrids in 

Beemarayangudi.

100 

SECOND YEAR TRIALS (2007-08) 

Interspecific hybrids as listed below were evaluated for the second year in succession. 

The trial was conducted along with DCH 32 as non Bt check hybrid and MRC 6918 as Bt 

check hybrid following the standard protocol. 

S. No. Name of the hybrid Name of the Company 

1. JK Chamundi Bt JK seeds 

2. MRC 7918 BG II Mahyco Seeds 

3. MRC 7929 BG II Mahyco Seeds 

4. NCHB 945 Bt Nuziveedu Seeds 

5. NCHB 940 Bt Nuziveedu Seeds 

Germination and plant stand was good in all the hybrids as furnished in the Table 115. 

Table 115. Germination and Plant stand under ETL based protection 

Entry 

Germination (%) Plant stand at harvest 

Coimbatore B'gudi Coimbatore LAM Mean 

NCHB 945 Bt 96.7 46.0 58.0 57.7 53.9 


MRC 7918 BG II 92.2 49.7 55.3 58.7 54.6 



MRC 7929 BG II 76.7 46.7 45.7 57.7 50.0 

JK Chamundi Bt 76.7 46.0 48.0 57.7 50.6 

The mean boll weight ranged from 3.8 g to 4.2 g in the hybrids (Table 116). 

Table 116. Mean boll weight under ETL based protection 


NCHB 945 Bt 4.8 3.4 3.7 3.9 


MRC 7918 BG II 4.7 3.5 3.7 4.0 



MRC 7929 BG II 4.4 4.0 3.6 4.0 

JK Chamundi Bt 4.3 3.4 3.9 3.8 

! 

!" #

101 

The ginning outturn data was recorded in Dharwad, Coimbatore and Lam and the mean 

data varied between 31.0 and 33.7 % (Table 117). 

Table 117. Ginning Outturn (%)under ETL based protection 




MRC 7918 BG II 28.4 32.7 32.0 31.0 



MRC 7929 BG II 30.3 31.9 31.4 31.2 


The lint index ranged from 5.3 to 5.9 g in the hybrids (Table 118). 





MRC 7918 BG II 5.6 4.7 5.7 5.3 



MRC 7929 BG II 6.4 5.6 5.5 5.9 


The range of seed index in hybrids was between 11.4 and 13.2 g (Table 119). 





MRC 7918 BG II 14.1 11.1 12.0 12.4 



MRC 7929 BG II 14.8 12.8 12.0 13.2 


!" #

102 

The highest seed cotton yield of 2414 kg/ha was recorded in MRC 7918 BGII with 18 % 

yield increase over MRC 6918 and 44 % increase over DCH 32 (Table 120). NCHB 940 

Bt and JK Chamundi Bt recorded lesser yield than the Bt check hybrid but higher yield 

over Non-Bt check hybrid DCH 32. 

Table 120. Seed Cotton yield (kg/ha) under ETL based protection 

Entry 

B'gudi 

Coimbatore 

LAM 

Dharwad 

Mean 

% Inc. 

over MRC 

6918 

!" # 

% In. 

over 

DCH 32 

MRC 7918 BG II 844 2431 3306 3076 2414 18 44 

NCHB 945 Bt 773 2615 2199 3699 2321 13 38 

MRC 7929 BG II 1363 2122 2858 2806 2287 12 36 

MRC 6918 Bt (Bt Check) 893 2579 1815 2917 2051 0 22 

NCHB 940 Bt 1007 2431 2045 2631 2028 -1 21 

JK Chamundi Bt 982 1955 2280 2744 1990 -3 18 

DCH 32 (Non Bt Check) 580 1528 1823 2792 1681 -18 0 

CD @ 5% 454 376 396 

CV % 11 9 8 

For lint yield the test hybrid NCHB 945 Bt was the best (909 kg/ha) (Table 121). 

Other test hybrids were poorer in lint yield over MRC 6918. 

Table 121. Lint yield (kg/ha) under ETL based protection 


% Inc. 

over 

MRC 

6918 

NCHB 945 Bt 800 719 1208 909 13 31 


MRC 7918 BG II 692 1071 986 916 14 32 


NCHB 940 Bt 735 678 933 782 -3 13 

MRC 7929 BG II 645 912 882 813 1 17 

JK Chamundi Bt 611 912 842 788 -2 14 

CD @ 5% 142 127 

CV % 12 9 

% Inc. 

over 

DCH 

32

Fibre quality Evaluation 

103 

The 2.5 % span length ranged between 33.0 mm and 36.1 mm and micronaire ranged 

between 2.9 and 3.5 (Table 122). 

Table 122. Fibre length and Micronaire under ETL based protection 

Entry 

2.5% span length (mm) Micronaire 


NCHB 945 Bt 35.1 31.3 33.2 4.0 3.0 3.5 


MRC 7918 BG II 37.0 34.4 35.7 3.5 3.0 3.2 



MRC 7929 BG II 37.0 34.9 35.9 3.8 2.9 3.3 

JK Chamundi Bt 35.5 35.1 35.3 3.8 2.9 3.3 

The bundle strength ranged from 23.0 to 26.2 g/tex (Table 123) and there was not much 

variation in uniformity ratio. 

Table 123. Bundle strength and Uniformity Ratio under ETL based protection 

Entry 

Bundle strength Uniformity ratio 




MRC 7918 BG II 25.2 25.4 25.3 49.0 47.1 48.1 



MRC 7929 BG II 21.8 24.3 23.0 50.5 46.1 48.3 


!" #

104 


EVALUATION UNDER PLANT PROTECTION (ETL BASED) 

The mean number of sucking pests namely jassids (Table 124), white flies (Table 125), 

Thrips (Table 126) and Aphids (Table 127) per plant recorded in the hybrids indicated 

not much variation between Bt and non Bt hybrid. 

Table 124. Number of Jassids / plant under ETL based protection 




MRC 7918 BG II 1.6 3.6 1.6 4.5 2.8 



MRC 7929 BG II 4.2 3.2 1.3 3.5 3.0 


Table 125. Number of white flies / plant under ETL based protection 

Entry Coimbatore LAM Mean 

NCHB 945 Bt 0.1 1.2 0.7 

MRC 6918 Bt (Bt Check) 0.0 0.7 0.3 

MRC 7918 BG II 0.1 1.2 0.6 

DCH 32 (Non Bt Check) 0.1 1.1 0.6 

NCHB 940 Bt 0.0 1.2 0.6 

MRC 7929 BG II 0.0 0.7 0.3 

JK Chamundi Bt 0.1 1.1 0.6 

Table 126. Number of thrips / plant under ETL based protection 




MRC 7918 BG II 14.5 0.3 0.4 12.8 7.0 



MRC 7929 BG II 14.9 0.3 0.1 8.3 5.9 


!" #

105 

Table 127. Number of aphids / plant under ETL based protection 




MRC 7918 BG II 2.5 14.7 0.6 3.3 5.3 



MRC 7929 BG II 3.1 16.7 0.6 1.4 5.4 


No square damage was recorded at Coimbatore and Lam but at Dharwad damage was 

reported and the non-Bt hybrid recorded higher square damage (Table 128). 

Table 128. Square damage (%) under ETL based protection 




MRC 7918 BG II 0.0 0.0 1.7 0.6 



MRC 7929 BG II 0.0 0.0 5.9 2.0 


No incidence of Pink bollworm was reported low at Coimbatore and Lam. No open boll 

damage and locule damage was reported at Coimbatore and Lam and there were little 

damage to boll as well as locule by bollworms at Beemarayangudi and at Dharwad 

(Table 129). 

Table 129. Open boll damage on boll and locule basis 

Entry 


B'gudi 

Coimbat 

ore 

LAM 

Mean 

B'gudi 


Coimbat 

ore 

NCHB 945 Bt 2.0 0.0 0.0 0.7 12.3 0.0 0.0 5.0 4.3 


MRC 7918 BG II 0.8 0.0 0.0 0.3 12.1 0.0 0.0 7.1 4.8 



MRC 7929 BG II 2.2 0.0 0.0 0.7 13.9 0.0 0.0 10.6 6.1 

LAM 

!" # 

Dharwad 

Mean 

JK Chamundi Bt 1.4 0.0 0.0 0.5 9.7 0.0 0.0 18.8 7.1

106 


Germination and plant stand were good in all hybrids at Coimbatore and Lam 

(Table 130). 

Table 130. Germination and plant stand under unprotected condition 

Entry 





MRC 7918 BG II 77.0 93.3 85.2 23.0 27.3 25.2 



MRC 7929 BG II 73.0 100.0 86.5 22.0 30.0 26.0 


At Coimbatore only MRC 7929 BG II (0.5 %) registered open boll damage on boll basis 

(Table 131) and there was no damage reported at Lam. On locule basis also there was no 

damage at Lam and lesser damage was recorded at Coimbatore. At Dharwad higher level 

of locule damage due to bollworms was reported. 

Table 131. Open boll damage on boll basis and locule basis under unprotected 

condition 

Entry 

Boll basis Locule Basis 

Coimbatore Lam Mean Coimbatore Lam Dharwad Mean 

NCHB 945 Bt 0.0 0.0 0.0 0.0 0.0 13.8 4.6 

MRC 6918 Bt (Bt Check) 0.0 0.0 0.0 0.0 0.0 15.1 5.0 

MRC 7918 BG II 0.0 0.0 0.0 0.5 0.0 8.8 3.1 

DCH 32 (Non Bt Check) 0.0 0.0 0.0 0.5 0.0 7.9 2.8 

NCHB 940 Bt 0.0 0.0 0.0 0.0 0.0 13.5 4.5 

MRC 7929 BG II 0.5 0.0 0.3 0.0 0.0 5.1 1.7 

JK Chamundi Bt 0.0 0.0 0.0 0.0 0.0 13.3 4.4 

!" #

107 

Under unprotected conditions, only JK Chamundi was found to record higher yield (2038 

kg/ha) over MRC 6918 with 5 % yield increase (Table 132) while other hybrids were 

inferior to MRC 6918 and the hybrids like MRC 7929 BG II, NCHB 940 Bt and NCHB 

945 Bt were lesser yielding than DCH 32. 



% Inc. 

over 

MRC 

6918 

!" # 

% In. 

over 

DCH 32 

JK Chamundi Bt 243 2194 3677 2038 5 8 


MRC 7918 BG II 718 1155 3833 1902 -2 1 


MRC 7929 BG II 359 1755 3116 1743 -10 -7 

NCHB 940 Bt 671 1039 3298 1669 -14 -11 

NCHB 945 Bt 382 619 3689 1563 -20 -17

108 

COMBINED REPORT OF TWO YEAR TRIALS 

(2006-07 & 2007-08) 

As indicated in the second year evaluation trial, five interspecific Bt cotton hybrids were 

evaluated for two successive years during 2006-07 and 2007-08 in South Zone. These 

hybrids were evaluated at four irrigated centres of AICCIP along with MRC 6918 as Bt 

check hybrid and DCH 32 as non-Bt check hybrid. 

During both the years, germination was good and hence proper plant stand was 

maintained till the harvest of the crop (Table 133). 

Table 133. Germination Percentage and Plant Stand under protected condition 

Entry 

Germination % 


plants) 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 97.8 92.2 95.0 58.8 54.6 56.7 

MRC 7929 BG II 90.6 76.7 83.6 57.2 50.0 53.6 



There was not much variation in boll weight between hybrids (Table 134) and it ranged 

from 3.7 to 4.0 g in test hybrids. The mean ginning outturn ranged between 30.7 and 

33.5 % among test hybrids. 

Table 134. Boll weight (g) and Ginning Outturn (%) under protected condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 3.8 4.0 3.9 30.3 31.0 30.7 

MRC 7929 BG II 3.9 4.0 4.0 31.0 31.2 31.1 



!" #

109 

Considering lint index and seed index, there was not much variation over the past two 

years as well as between hybrids (Table 135). 

Table 135. Lint index (g) and Seed Index (g) under protected condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 4.7 5.3 5.0 11.6 12.4 12.0 

MRC 7929 BG II 5.4 5.9 5.6 12.6 13.2 12.9 



Combined mean of seed cotton yield over the last two years indicated the yield 

superiority of all the test hybrids except JK Chamundi over the Bt check hybrid (Table 

136). The highest seed cotton yield of 2493 kg/ha was noted in the hybrid MRC 7918 

BG II with 35 % yield increase over MRC 6918 and 67 % increase over DCH 32. 

Table 136. Seed cotton yield (kg/ha) under protected condition 

Entry 


2006-07 2007-08 Mean 

% Inc. over 

MRC 6918 

% Inc. over 

DCH 32 

MRC 7918 BG II 2571 2414 2493 35 67 

MRC 7929 BG II 2377 2287 2332 27 56 

NCHB 945 Bt 1934 2321 2128 15 43 

NCHB 940 Bt 2007 2028 2018 9 35 

MRC 6918 Bt (Bt Check) 1635 2051 1843 0 24 

JK Chamundi Bt 1607 1990 1799 -2 21 

DCH 32 (Non Bt Check) 1301 1681 1491 -19 0 

!" #


110 

Most of the test hybrids had fibre length equivalent to the check hybrids except 

NCHB 940 Bt (33.6 mm) and NCHB 945 Bt (33.7 mm). For micronaire value, the test 

hybrids were on par with check hybrids (Table 137). 

Table 137. 2.5% Span length (mm) and Micronaire under protected condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 36.4 35.7 36.0 3.2 3.2 3.2 

MRC 7929 BG II 36.4 35.9 36.2 3.2 3.3 3.3 



For fibre strength, Bt check hybrid MRC 6918 was the best recording 26.3 g/tex (Table 

138) and there is not much variation evident in uniformity ratio. 

Table 138. Fibre Strength (g/tex) and Uniformity ratio under protected condition 

Entry 

Bundle Strength (g/tex) 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 25.5 25.3 25.4 47.3 48.1 47.7 

MRC 7929 BG II 24.5 23.0 23.7 47.0 48.3 47.6 



For sucking pest like jassids, white fly, thrips and aphid per plant, not much variation was 

noticed between Bt and non Bt hybrids (Tables 139 & 140). However, incidence of pest 

like aphids varied across the year. 

!" #

111 

Table 139. Number of Jassids / plant and White flies / plant under rainfed protected 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 2.5 2.8 2.7 0.1 0.6 0.4 

MRC 7929 BG II 2.5 3.0 2.8 0.1 0.3 0.2 



Table 140. Number of Thrips / plant and Aphids / plant under protected condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 7.1 7.0 7.0 33.0 5.3 19.2 

MRC 7929 BG II 4.3 5.9 5.1 14.7 5.4 10.1 



Non Bt check hybrid DCH 32 recorded higher square as well as green boll damage 

(Table 141) as compared to Bt hybrids. There is variation between the year for pest 

incidence. 


larvae / 20 bolls and Per cent square damage under protected condition 

Entry 



Bollworms 

2006-07 2007-08 Mean 2006-07 2007-08 Mean 2006-07 2007-08 Mean 


JK Chamundi Bt 1.7 0.0 0.8 0.2 0.0 0.1 0.2 0.8 0.5 


MRC 7918 BG II 0.8 0.0 0.4 0.2 0.0 0.1 0.7 0.6 0.6 

MRC 7929 BG II 0.8 0.0 0.4 0.2 0.0 0.1 0.6 2.0 1.3 



!" #

112 

Under protected condition, higher boll damage on both boll basis and locule basis was 

noticed in Bt hybrid JK Chamundi as compared to other Bt hybrids and even non Bt 

check hybrid DCH 32 (Table 142). 

Table 142. Open boll damage (%) - Boll and locule basis under protected condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 0.0 0.3 0.1 4.9 4.8 4.8 

MRC 7929 BG II 0.0 0.7 0.4 4.9 6.1 5.5 



Under unprotected condition, comparatively lesser damage due to bollworms was 

reported during the current year (Table 143). However, open boll damage was the 

maximum in NCHB 940 Bt (4.4 %) on boll basis and on locule basis the maximum 

damage was noted in JK Chamundi Bt (6.9 %). 

Table 143. Open boll damage (%) - Boll and locule basis under unprotected 

condition 

Entry 


2006-07 2007-08 Mean 2006-07 2007-08 Mean 




MRC 7918 BG II 4.8 0.0 2.4 5.8 3.1 4.4 

MRC 7929 BG II 3.2 0.3 1.7 5.5 1.7 3.6 



!" #

113 

The mean seed cotton yield under unprotected condition was highest in MRC 7918 BG II 

(1723 kg/ha) with 20 % yield superiority over MRC 6918 (1723 kg/ha) and 40 % 

increase over DCH 32 (1231 kg/ha). The hybrids NCHB 940 Bt and NCHB 945 Bt 

recorded lesser yield than MRC 6918 Bt but were superior to DCH 32. 


Entry 


% Inc. over 

MRC 6918 

2006-07 2007-08 Mean 

MRC 7918 BG II 1543 1902 1723 20 40 

MRC 7929 BG II 1264 1743 1504 5 22 

JK Chamundi Bt 929 2038 1483 3 20 

MRC 6918 Bt (Bt Check) 922 1945 1434 0 16 

NCHB 940 Bt 918 1669 1294 -10 5 

NCHB 945 Bt 981 1563 1272 -11 3 

DCH 32 (Non Bt Check) 581 1880 1231 -14 0 

**** 

!" # 

% Inc. over 

DCH 32

Bt Cotton Hybrids Evaluation Report – South Zone

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