RICE RATOONING - IRRI books - International Rice Research Institute

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INHERITANCE OF RATOONING ABILITY IN CHINESE VARIETIES 243Table 3. The comparison of h 2 in ratooning ability of the recriprocals of different parents.NParent Ratooning ability (%)h 2NTaster parentShu-Fong No. 1 (11)Ai-Nan-Zaoto betestedNormalReciprocalNormalReciprocalTai-Guao-Dao Shong-Zao-Xian Hon-Mei-ZaoXuan No. 26–64.54 ± 30.92 65.56 ± 14.74 70.75 ± 14.07F = 0.76F = 1.49** F = 1.55**12.21 ± 25.94 23.01 ± 19.10 41.82 ± 17.00F = 1.06F = 1.134 F = 1.264**76.41 ± 14.07F = 1.618**13.01 ± 21.52F = 1.070*Significant at 5% level. **Significant at 1% level.1.55 ± 21.93F = 1.34738.52 ± 20.69F = 1.239*57.03 ± 16.049F = 1.399**interaction. Using Mather and Jinks’ (4) procedures, six generations of each crosscombination and its reciprocals were used to estimate the genetic parameters andcomparisons were made between corresponding estimates of these parametersobtained from reciprocal crosses. Various components of genic effects in thereciprocal crosses have been estimated as in Table 4. This indicates that1) the additive [d] in crosses with Ai-Nan-Zao are all negative and highlysignificant, which shows that Ai-Nan-Zao will decrease ratooning ability;2) Shu-Fong No. 1 (11) mated with Tai-Guao-Dao-Xuan. Shong-Zao-XianNo. 26 or Hon-Mei-Zao shows additive effects [d] which are extremelysignificant except in Shu-Fong No. 1 (11)/ Hon-Mei-Zao;3) the crosses produced by parents possessing a certain degree of ratooningability show different genic effects [m], [h], [i], [j], and [l], among filialgenerations from different parents of and between the reciprocals of thesame parents.Cytoplasmic effects and nucleocytoplasmic interaction in ratooning abilityTo understand further how the cytoplasm affects the various components of geniceffect in ratooning ability, the difference between the reciprocals in the variouscomponents of heredity is estimated from the data in Table 4 by the formula of 1/2[reciprocal 2 minus normal (l)], and listed in Table 5.In the column of component of heredity in Table 5,1/2 (m 2 -m 1 ) is equal to themean of differences between the reciprocals in average genic effects, that is, thecytoplasmic effects. 1/2([d] 2 -[d] l ) equals the mean of difference, which subtractsnormal additive [d]l from the reciprocal one [d]2. As 1/2([d] 2 - [d] 1 ) is equal to zero,there seems to be no additive-cytoplasm interaction in the crosses under investigation.1/2([h 2N - [h] 1 ) equals the interaction of dominance with the cytoplasm. l/2([i] 2-[i] 1 , 1/2([j] 2 - [j] l , 1/2([1] 2 - [1] 1 ) are the interactions of additive/additive,additive/ dominance, and dominance/ dominance with the cytoplasm, respectively.Results are obtained by T testing. Tai-Guao-Dao-Xuan’s cytoplasmic effect appearsto be positive for Shu-Fong No. 1 (11) and negative for Ai-Nan-Zao, and they are allhighly significant. Shong-Zao-Xian No. 26 shows extremely significant negativeeffect for Shu-Fong No. l(11), while Hon-Mei-Zao shows no significant cytoplasmiceffect for Shu-Fong No. 1(11) but some cytoplasmic effects for Ai-Nan-Zao.
244 RICE RATOONINGTable 4. The genic effects of ratooning ability in rice varieties.HereditycomponentGenic effectParent[m] [d] [h] [i] [j] [l]Shu-Fong No. 1 0.27±3.16(11)/Tal-Guao-Dao-XuanTai-Guao-Dao- 11.21±4.56**XuanShu-Fong No. 1 (11)Ai-Nan-Zao/Tai- 9.0 ± 1.9**Guao-Dao-XuanTai-Guao-Dao- 3.80 ± 2.11**Xuan/Ai-Nan-ZaoShu-Fong No, 1 15.30 ± 2.50*(11)/ShongZao-Xian No. 26Shong-Zao-Xian 7.83 ± 2.35**No. 26/Shu-Fong No. 1(11)Ai-Nan-Zao/ 6.10 ± 1.36*Shong-Zao-XianNo. 26Shong-Zao-Xian –No. 26/Ai-Nan-ZaoShu-Fong No. 1 10.43 ± 1.95*(11)/Hon-Mei-ZaoHon-Mei-Zao/ 8.73 ± 1.85**Shu-Fong No, 1(11)Ai-Nan-Zao/ 5.14 ± 2.07*Hon-Mei-ZaoHon-Mei-Zao/ 7.94 ± 1.80**Ai-Nan-Zao2.54 ± 0.352.54 ± 0.35**-5.58 ± 0.40**-5.60 ± 0.40**5.90 ± 0.60**5.86 ± 0.59**-1.15 ± 0.24**1.15 ± 0.24**0.58 ± 0.400.58 ± 0.40-3.51 ± 0.30**-3.51 ± 0.30**22.79 ± 8.40–-0.22 ± 4.88–-27.24 ± 6.15**-10.04 ± 5.91-7.22 ± 5.16–-1.05 ± 4.690.11 ± 4.521.26 ± 5.35-6.70 ± 4.408.00 ± 2.82 -11.91 ± 2.50-2.94 ± 4.54 -12.97 ± 3.13-1.58 ± 1.94 3.05 ± 1.43*3.70 ± 2.07 3.80 ± 1.64*-9.18 ± 2.14** -2.30 ± 1.85-1.72 ± 7.28 -7.47 ± 1.87-4.82 ± 1.84. 0.19 ± 1.65––-2.18 ± 1.91 -2.98 ± 1.35-0.48 ± 1.80 1.16 ± 1.34-0.48 ± 2.20 -0.34 ± 1.60-3.28 ± 1.78 -0.26 ± 1.33-8.87 ± 5.53–1.73 ± 3.046–27.61 ± 3.9117.01 ± 3.9023.01 ± 3.38–1.02 ± 2.883.38 ± 2.84-0.96 ± 3.433.24 ± 2.72*Significant at the 5% level. **Significant at the 1% level.Table 5. Difference between reciprocals in genic ratooning effects.Heredity componentDifference1/2 (m 2 - m 1 ) 1/2 ([d] 2-Parent[d] 1)1/2 ([h] 2-[h] 1)1/2 ([i] 2-[i] 1)1/2 ([j] 2-[i] 1)1/2 ([l] 2-[l] 1)Shu-Fong No. 1 (11) 5.47±1.39** 0– -5.47±1.37** -0.53±1.00–/Tai-Guao-Dao-XuanAi-Nan-Zao/Tai- -2.62±0.72**Guao-Dao-XuanShu-Fong No. 1 (11)/-3.73±0.86**Shong-Zao-Xian00–8.60±2.13**2.62±0.71**3.73±0.83**0.36±0.54-2.59±0.66**–-5.30±1.58**No. 26Ai-Nan-Zao/Shong- –0––––Zao-Xian No. 26Shu-Fong No. 1 (11)/ 0.85±0.67Hon-Mei-Zao0 0.58±1.63 0.85±0.66 2.67±0.47** 1.18±1.01Ai-Nan-Zao/ 1.40±0.69* 0±1.73* -1.40±0.71 0.04±0.51 2.10±1.09Hon-Mei-Zao*Significant at the 5% level. **Significant at the 1% level.The interaction of nucleocytoplasm is clear in Table 5. For the crosses withTai-Guao-Dao-Xuan, the difference between reciprocals in [h] [1] cannot beestimated because there was no reciprocal hybrid F 1 ’ in 1981. But the interaction of[i] with the cytoplasm appears to be extremely significant. For Shu-Fong No.l(11)/Shong-Zao-Xian No. 26, the interaction of [h] and [i] with the cytoplasmappears to be significantly positive and that of [j] and [l] significantly negative. For
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RICERATOONING1988INTERNATIONAL RICE
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ContentsForewordWelcome 1OverviewRi
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Genetics and varietal improvementIn
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2 RICE RATOONINGthe main crop. Harv
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4 RICE RATOONINGTable 1. Area, prod
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6 RICE RATOONINGTable 2. Rice varie
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8 RICE RATOONING1. Effect of spacin
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10 RICE RATOONINGHowever, no signif
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12 RICE RATOONINGrelating to seed v
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14 RICE RATOONING5. Cultivars that
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Economic perspectivesof rice ratoon
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ECONOMIC PERSPECTIVES OF RICE RATOO
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32 RICE RATOONINGla) Developmental
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34 RICE RATOONINGCutting heightStub
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36 RICE RATOONINGEarly flooding enc
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38 RICE RATOONING2. Factors affecti
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40 RICE RATOONING27. Nair, N.R., an
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42 RICE RATOONING1. Changes in till
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44 RICE RATOONINGTable 2. Character
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46 RICE RATOONING9. International R
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48 RICE RATOONINGplot size is 6 row
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50 RICE RATOONINGimproved ratooning
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52 RICE RATOONINGTable 6. Simple co
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Utilization of rice ratooningby far
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RICE RATOONING IN RIO DE JANEIRO 57
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RICE RATOONING IN RIO DE JANEIRO 59
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Rice ratooningin the Dominican Repu
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RICE RATOONING IN THE DOMINICAN REP
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89111306514772Special points Refere
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72 RICE RATOONINGANDHRA PRADESHBasu
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74 RICE RATOONINGrice observed at t
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76 RICE RATOONINGTAMIL NADUBalasubr
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78 RICE RATOONING19. Reddy, T.G., M
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80 RICE RATOONING1. Rice-growing re
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82 RICE RATOONING2. High cutting he
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84 RICE RATOONINGTable 3. Yield tri
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Rice ratoon crop managementin the h
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RICE RATOON CROP MANAGEMENT IN KARN
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23123722821721922222421423122421722
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98 RICE RATOONING1. The Tungabhadra
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100 RICE RATOONINGthe results of po
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102 RICE RATOONINGTable 4. Effect o
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Ratoon rice researchin Karnataka, I
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RATOON RICE RESEARCH IN KARNATAKA 1
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RATOON RICE RESEARCH IN KARNATAKA 1
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112 RICE RATOONINGTable 1. Area and
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114 RICE RATOONINGonly 7.5-49.7% of
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116 RICE RATOONINGTable 5. Relation
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Scope for rice ratoon croppingin th
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RATOON CROPPING IN NORTHEASTERN IND
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Scope for rice ratoon croppingin th
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RATOON CROPPING IN CENTRAL AND NORT
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RATOON CROPPING IN CENTRAL AND NORT
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Potential of rice ratooningin Madag
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RICE RATOONING IN MADAGASCAR 131a.
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RICE RATOONING IN MADAGASCAR 133Tab
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Potential for rice ratooningin east
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RICE RATOONING IN EASTERN INDIA 137
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Ratooning in Bangladesh:prospects a
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RATOONING IN BANGLADESH 145RATOON C
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RATOONING IN BANGLADESH 147Table 4.
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RATOONING IN BANGLADESH 149OTHER FA
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152 RICE RATOONINGTable 1. Hybrid s
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154 RICE RATOONINGThe studies sugge
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156 RICE RATOONINGVARIETIES AND CUL
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158 RICE RATOONINGspikelet primordi
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160 RICE RATOONINGTable 5. Effect o
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Agronomic principles and practiceso
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AGRONOMIC PRINCIPLES AND PRACTICES
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Rice ratooning: breeding,agronomic
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BREEDING, AGRONOMIC PRACTICES, AND
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188 RICE RATOONINGwas the most effe
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190 RICE RATOONINGRESULTSMain crop
Page 199 and 200: 192 RICE RATOONINGRatoon tiller reg
Page 201 and 202: 194 RICE RATOONING9. Rister, M. E.,
Page 203 and 204: 196 RICE RATOONINGExcept for rice w
Page 205 and 206: 198 RICE RATOONINGInsect survivorsh
Page 207 and 208: 200 RICE RATOONING1. Stem borer occ
Page 209 and 210: 202 RICE RATOONING3. Population dyn
Page 211 and 212: 204 RICE RATOONING2, 3). Microvelia
Page 213 and 214: 206 RICE RATOONINGplant chemicals a
Page 215 and 216: 208 RICE RATOONING17. Krishnamurthy
Page 217 and 218: 210 RICE RATOONING1. Yellow dwarf c
Page 219 and 220: 212 RICE RATOONING3. The effect of
Page 221 and 222: 214 RICE RATOONINGAlthough the inte
Page 223 and 224: 216 RICE RATOONINGTable 6. Sheath b
Page 226 and 227: Yellow dwarf disease in ratoon rice
Page 228 and 229: YELLOW DWARF DISEASE IN RATOON RICE
Page 230 and 231: YELLOW DWARF DISEASE IN RATOON RICE
Page 232: YELLOW DWARF DISEASE IN RATOON RICE
Page 235 and 236: 228 RICE RATOONINGTable 1. Estimate
Page 237 and 238: Main crop a Ratoon crop b53.956.155
Page 240 and 241: Disease and insect pestsand their c
Page 242 and 243: DISEASE AND INSECT PESTS IN RICE RA
Page 244 and 245: DISEASE AND INSECT PESTS IN RICE RA
Page 246 and 247: Inheritance of ratooning abilityin
Page 248 and 249: INHERITANCE OF RATOONING ABILITY IN
Page 252: INHERITANCE OF RATOONING ABILITY IN
Page 255 and 256: 248 RICE RATOONINGShould the season
Page 257 and 258: 250 RICE RATOONINGYield and yield-c
Page 259 and 260: 252 RICE RATOONINGMain-crop photosy
Page 261 and 262: 254 RICE RATOONINGShort-termGiven t
Page 264 and 265: Commercial ratoon rice productionin
Page 266 and 267: COMMERCIAL RATOON RICE PRODUCTION I
Page 268 and 269: COMMERCIAL RATOON RICE PRODUCTION I
Page 270: COMMERCIAL RATOON RICE PRODUCTION I
Page 273 and 274: 0.180.200.490.250.160.270.390.350.3
Page 275 and 276: 268 RICE RATOONING1. Path analysis
Page 277 and 278: 270 RICE RATOONINGRecommendationsVa
Page 280 and 281: ParticipantsT. AhmedRice Experiment
Page 282 and 283: Varietal indexA200, 221Achra 108/1,
Page 284 and 285: VARIETAL INDEX 277IR2061-465-1, 12I
Page 286: VARIETAL INDEX 279RU7502006, 49, 51
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