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YELLOW DWARF DISEASE IN RATOON RICE 223Tabla 3. Yellow dwarf incidence in ratoon hybrid rices, 1985-86.Variety/selectionP203A/lntan MutantIR29723-243-3-2-1Wei-You 64IR46830A/13292-5-2MS 577A/lntan MahsuriP203A/lntan MahsuriIR21845-90-3A/IR5497A/Milyang 54Iri 356A/MilyangIR46828A/Milyang 54577A/lntan Mutant 1IR46831A/IR 54% incidence0.000.160.160.170.300.3 10.460.470.630.791.09CONTROLThe occurrence of yellow dwarf in the field was decreased to some extent by applyingcarbaryl (1-naphthyl N-methylcarbamate) or vamidothion (N-methyl O,O-dimethyltriolophosphoryl-5-thio-3-methyl-2-valeramide)twice during the rice nurseryperiod (29). Malathion, carbaryl dust, and other chemicals were used, usually soonafter transplanting, to kill overwintering insects (7, 27).Carbaryl (1-naphthyl N-methylcarbamate) when applied to soil at 3 kg ai/ hacontrolled Nephotettix spp. effectively (14). Seed treatment with carbofuran ormethomyl or phorate or propoxur protected rice seedlings from the leafhoppers(26, 45).Leafhopper mortality was higher in plots treated with phosphamidon (0.03%),carbofuran (0.04%), dimethoate (0.0125%), and demeton-S-methyl (0.025%) andyellow dwarf incidence was reduced from 5.80 to 0.94% (31).CONCLUSIONSIn recent years ratoon cropping of rice has been practiced in parts of Karnataka (20,23, 46). There is a great potential for adopting rice ratoon cropping in parts of thecountry. Yellow dwarf might become a limiting factor for raising a ratoon rice cropbecause the disease is predominant in the ratoon crop. Only tolerant varieties shouldbe recommended wherever ratooning is practiced. Also, resistant varieties shouldinvariably be used in future breeding programs to evolve resistant types suitable forratoon cropping.After the main crop is harvested, leafhoppers persist on the stubble. Becausethe initial inoculum is available, the disease spreads much faster in the ratoon crop.A week or 10 d after main crop harvest, it is important to spray the ratoon crop withinsecticides to kill leafhoppers to prevent further spread of the disease.
224 RICE RATOONINGREFERENCES CITED1. Abeygunawardena, D. V. W. 1969. The present status of virus diseases of rice in Ceylon. Pages 53-57in The virus diseases of the rice plant. Proceedings of a symposium at the International Rice ResearchInstitute, 25-28 April, 1967. The Johns Hopkins Press, Baltimore, Maryland.2. Babaguchi, K., and K. Hara. 1966. Infection period of the yellow dwarf virus of early growing riceplants [in Japanese]. Proc. Assoc. Plant Prot. Kyushu 12:20-25.3. Chen, C. C., and W. H. KO. 1975. Effect of yellow dwarf disease on the agronomic characters of riceplant. Plant Prot. Bull. Taiwan 17:250-262.4. Chen, C. C., and W. H. KO. 1976. Studies on the varietal resistance of rice plant to yellow dwarf. II.Screening test for varietal resistance to yellow dwarf in the rice plant. III. Types of yellow dwarfresistance [in Chinese]. Plant Prot. Bull. Taiwan 18:346-353.5. Chien, C. C. 1979. Occurrence and influence of rice diseases on yield in the first and second rice cropsin Taiwan. National Science Council, Taipei, Taiwan. p. 177-189.6. Chiu, S. M., M. H. Lin, and C. S. Huang. 1968. A screening test for rice varieties resistant to yellowdwarf disease [in Chinese]. J. Taiwan Agric. Res. 17:19-23.7. Enjoji, S. 1948. Experimental results in the control of rice yellow dwarf virus. Chiba Agric. Breed.Stn. Rep. (mimeo.)8. Hashioka, Y. 1952. Varietal resistance of rice to brownspot and yellow dwarf, studies on pathologicalbreeding of rice. VI [in Japanese]. Jpn. J. Breed. 2:14-16.9. Iida, T. T. 1969. Dwarf, yellow dwarf, stripe, and black-streaked dwarf diseases of rice. Pages 3-11 inThe virus diseases of the rice plant. Proceedings of a symposium at the International Rice ResearchInstitute, April, 1967. The Johns Hopkins Press, Baltimore, Maryland.10. Iida, T. T., and A. Shinkai. 1950. Transmission of rice yellow dwarf by green rice leaf hopper [inJapanese]. Phytopathol. Soc. Jpn. Ann. 14:113-114.11. International Rice Research Institute. 1972. Annual report for 1971. P.O. Box 933, Manila,Philippines. 238 p.12. International Rice Research Institute. 1973. Annual report for 1972. P.O. Box 933, Manila,Philippines. 246 p.13. Ishihara, T., and E. Kawase. 1968. Two new Malayan species of the genus Nephotettix (Hemiptera:Cicadellidae). Appl. Entomol. Zool. 3:119-123.14. John, V. T. 1966. Insecticide control of Nephotettix spp., the vectors of tungro and yellow dwarfdiseases of rice in the Philippines. Indian Phytopathol. 19:150-154.15. John, V. T. 1970. Yellowing diseases of paddy. Indian Farming 20(3):27-30.16. Kobayashi, S., Y. Kureha, and T. Shibamoto. 1975. On the importance of post transplantinginfection with rice yellow dwarf [in Japanese]. Proc. Kanto-Tosan Plant Prot. Soc. 22:20.17. Komori, N., and S. Takano. 1964. Varietal resistance of rice plants to rice yellow dwarf in field [inJapanese]. Proc. Kanto-Tosan Plant Prot. Soc. 11:12.18. Kurosawa, E. 1940. Yellow dwarf disease of rice occurring in Taiwan [in Japanese]. J. Plant Prot.27:161-166.19. Lim, G. S., and K. G. Goh. 1968. Leaf hopper transmission of a virus disease of rice locally known asPadi Jantan in Kiran, Malaysia. Malaysian Agric. J. 46:435-450.20. Mahadevappa, M. 1979. Ratoon cropping to increase rice production. UAS Tech. Ser. 26, Univ.Agric. Sci., Bangalore, India. 23 p.21. Maramorosch, K., B. Plavsic-Banjac, V. T. John, and S.P. Raychaudhuri. 1972. Etiology of riceyellow dwarf in India. Phytopathology 62:776.22. Mathew, J., and J. Abraham. 1977. Occurrence of rice yellow dwarf in Kerala. Agric. Res. J. Kerala15:172-173.23. Medappa, C. K., and M. Mahadevappa. 1976. A ratoon crop Intan paddy in Coorg is possible. Curr.Res. 5:148-149.24. Mishra, M. D., S.P. Raychaudhuri, T.R. Everett, and A. N. Basu. 1973. Possibilities of forecastingoutbreaks of tungro and yellow dwarf of rice in India and their control. Proc. Indian Natl. Sci. Acad.37B:352-356.25. Mitra, D. K., and V. T. John. 1973. Response of seedlings towards feeding by the rice leaf hopper,Nephotettix spp. vectors of rice tungro virus and yellow dwarf. Indian Phytopathol. 26:368-370.26. Mitra, D. K., S. P. Raychaudhuri, T.R. Everett, A. Ghosh, and F. R. Niazi. 1970. Control of ricegreen leaf hopper with insecticidal seed treatment and pre-transplanting seedling soak. J. Econ.Entomol. 63:1958-1961.27. Miyazawa, T., Y. Muroga, Y. Miyairi, and H. Ichikawa. 1961. Large scale cooperative control of riceyellow dwarf using helicopter [in Japanese]. Proc. Kanto-Tosan Plant Prot. Soc. 8:17.
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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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Page 180 and 181: AGRONOMIC PRINCIPLES AND PRACTICES
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Page 184 and 185: Rice ratooning: breeding,agronomic
Page 186 and 187: BREEDING, AGRONOMIC PRACTICES, AND
Page 192: BREEDING, AGRONOMIC PRACTICES, AND
Page 195 and 196: 188 RICE RATOONINGwas the most effe
Page 197 and 198: 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 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 250 and 251: INHERITANCE OF RATOONING ABILITY IN
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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
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Page 275 and 276: 268 RICE RATOONING1. Path analysis
Page 277 and 278: 270 RICE RATOONINGRecommendationsVa
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ParticipantsT. AhmedRice Experiment
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Varietal indexA200, 221Achra 108/1,
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VARIETAL INDEX 277IR2061-465-1, 12I
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VARIETAL INDEX 279RU7502006, 49, 51
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