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The Journal of Research ANGRAU

Contents of 41(1) 2013 - acharya ng ranga agricultural university

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YAMINI et al<br />

Table 3. Estimates <strong>of</strong> specific combining (Sca) effects for seven yield attributes in Chickpea<br />

S.<br />

No Cross D 50 F DM PH NB/P NP/P SY/P<br />

100<br />

SW<br />

1 NBeG -3 x JG-11 2.56 -1.77* 2.43* 1.81* -11.74** 3.42** 1.64<br />

2<br />

3<br />

NBeG-3 x ICCV05106 2.44 0.71 -0.52 -4.76** 7.15**<br />

NBeG-3 x MNK-1 -2.44 -1.77* -0.48 1.68* -4.44**<br />

-<br />

4.76**<br />

-<br />

11.79**<br />

-<br />

3.44** -4.88**<br />

4 NBeG-3 x ICCV 95333 1.26 0.75 -0.84 7.77** 31.99** 5.53** 0.6<br />

5 NBeG-3 x KAK-2 1.37 0.27 -1.19 2.05** 4.32** 0.82* 5.52**<br />

6 NBeG-3 x Vihar -3.85** -1.03 2.31* -0.43 3.64** 7.51** 1.27<br />

7 JG-11 x ICCV 05106 2.67 -0.47 1.14 5.53** 23.63** 5.67** 1.35<br />

8 JG-11 x MNK-1 6.11** 0.05 4.57** 1.04 -0.48 4.66** -2.15*<br />

9 JG-11 x ICCV95333 -3.52* 0.23 -4.83** -2.23** -7.2** -4.38** -4.89**<br />

10 JG-11 x KAK-2 -3.41* -1.25 1.55 2.02** 33.29** 6.1** -1.72<br />

11 JG-11 x Vihar -5.3** -1.55* -0.21 -0.06 30.05** 0.96** -0.77<br />

12 ICCV05106 x MNK-1 -2.33 1.86* 0.93 2.1** -0.36 0.66 1.33<br />

13<br />

ICCV05106 X ICCV 95333 -5.96** 0.05 2.87** 1.13 4.66** 0.06 5.85**<br />

14 ICCV05106 x KAK-2 -2.85* 0.9 -1.57 -3.62** -15.4** -0.21 1.83<br />

15 ICCV05106 x Vihar -2.41 -2.4** -0.3 7.63** 20.86** 8.78** -0.57<br />

16 MNK-1 x ICCV 95333 -0.52 -0.44 0.86 -3.08** 0.66 2.33** 4.77**<br />

17 MNK-1 x KAK-2 -3.41* -0.58 -4.61** 5.78** 11.51** 4.47** -6.82**<br />

18 MNK-1 x Vihar 1.7 -0.55 0.79 -5.53** -8.45** -3.95** 2.37*<br />

19 ICCV95333 x KAK-2 3.3* -1.07 1.6 3.69** 4.04** 4.61** 1.4<br />

20 ICCV 95333 x Vihar 1.74 -0.36 -3.35** 0.59 0.69 -0.64 -2.26*<br />

21 KAK-2 x Vihar 2.85* 0.16 2.92** -4.61** -6.99** 1.42 4.38**<br />

S.E <strong>of</strong> Sii-Sjj 1.64 0.83 1.12 0.82 1.19 0.42 1.23<br />

S.E <strong>of</strong> Sij-Sik 2.08 1.05 1.42 1.04 1.51 0.53 1.55<br />

S.E <strong>of</strong> Sij-Skl 1.94 0.98 1.33 0.98 1.41 0.49 1.45<br />

* Significant at Pd” 0.05, ** Significant at Pd” 0.01<br />

D 50 F= Days to 50% flowering, DM= Days to maturity, PH= Plant height, NB/P= Number <strong>of</strong> branches per<br />

plant, NP/P= Number <strong>of</strong> pods per plant, SY/P= Seed yield per plant, 100 SW=100 seed weight.<br />

JG-11 and Vihar exhibits highly significant positive<br />

gca effects indicating that they were good general<br />

combiners for seed yield. So, these parents can be<br />

exploited for the development <strong>of</strong> improved lines <strong>of</strong><br />

chickpea, because high gca effects are mostly due<br />

to additive gene effect or additive x additive<br />

interaction effects which are fixable (Griffing, 1956).<br />

<strong>The</strong> sca effect is an important criterion for<br />

the evaluation <strong>of</strong> hybrids. Among the various gene<br />

interactions contributing towards sca, the additive x<br />

additive type <strong>of</strong> gene interaction is fixable in<br />

segregating generations in self pollinated crops like<br />

chickpea. More over ultimate aim <strong>of</strong> a plant breeder<br />

is to develop potential homozygous lines through<br />

hybridization. <strong>The</strong> cross combinations with significant<br />

desirable sca effects along with mean performance<br />

and gca effects <strong>of</strong> the parents are listed in Table 3.<br />

JG-11 x Vihar had significant desirable sca effects<br />

for seed yield per plant and number <strong>of</strong> pods per plant<br />

81

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