RICE RATOONING - IRRI books - International Rice Research Institute

RICE RATOONING PRACTICES IN INDIA 77temperature areas (high and medium elevations), although good ratoon yields havealso been harvested in warmer climates.The ratoon-cropped area in the hill and transition belts of Karnataka isfluctuating; lack of appropriate varieties and production technology for specificsituations and lack of effort to transfer available technology are reasons which needresearch attention. Stray cattle, birds, and uncertainty of residual moisture due toperiodic droughts are problems faced by farmers who are otherwise inclined towardratoon crop production.Missing hills, uneven flowering, weed growth, inefficient water management,and errors in main plot selection have contributed to frequent low ratoon yields.Because ratoon crop production is relatively more complicated, it needs carefuldecisions at various stages. A great handicap is lack of awareness among farmers,extension workers, and administrators of the potential of the rice ratoon croppingsystem. It will be rewarding to intensify research under diverse climatic conditions toselect priority regions for this system. Economic viability analysis is also animportant prerequisite to introducing ratoon cropping of rice over a larger area.REFERENCES CITED1. Anonymous. 1943. A ratoon crop of paddy. Mysore Agric. J. 22(1):15.2. Anonymous. 1977. Promising mutants from popular Mahsuri. Rice Res. Newsl. CRRI, India3( 1): 1-2.3. Anonymous. 1985. Package of practices for high yield. Joint publication of the University ofAgricultural Sciences and State Government, Department of Agriculture, Bangalore, India.4. Das, G.R., and T. Ahmed. 1982. The performance of semidwarf varieties as ratoon crop after summerharvest. Oryza 19(3/4):159-161.5. Balasubramanian, B., Y.B. Morachan, and R. Kaliappa. 1970. Studies on ratooning in rice. I.Growth attributes and yield. Madras Agric. J. 57(11):565-570.6. Bardhan Roy, S.K., R. Ghosh, and J. Mondal. 1983. Comparison of photoperiod sensitive ratoonrice and normal sown aman rice. Int. Rice Res. Newsl. 8(5):22-23.7. Basavaraju, B., B.V. Jayakumar, and M. Mahadevappa. 1986. Ratoon crop performance of threerices. Int. Rice Res. Newsl. 11(1):27.8. Chatterjee, B.N., S. Bhattacharya, and P. Debnath. 1982. Ratooning of rice. Oryza 19(3/4):226-227.9. Karunakaran, K., M.B., Jalajakumari, and P. Sreedevi. 1983. Ratoon performance of some shortduration rice culture. Int. Rice Res. Newsl. 8(4):4.10. Mukerji, N.G., 1915. Handbook of Indian Agriculture. Spink Co., Ltd., Calcutta. 168 p.11. Mahadevappa, N.G. 1979. Ratoon cropping to increase rice production. Bangalore, UAS 23 p. (UASTech. Ser. 26).12. Medappa, C.K., and M. Mahadevappa. 1976. A ratoon crop Intan paddy in Coorg is possible. Curr.Res. 5: 148-149.13. Palchamy, A. and S. Kolandaswamy. 1982. Correlation and path coefficient study of ratoon ricevarieties Vaigai and Bhavani. Madras Agric. J. 69(10):693-694.14. Ramaiah, K. 1937. Rice in Madras — a popular handbook. 180 p.15. Ramaswamy, C., and L.D. Haws. 1970. Successive cropping of IR8 paddy with notes on ratooning.Madras Agric. J. 57(11):545-546.16. Reddy, R., and M.S. Pawar. 1959. Studies on ratooning in paddy. Andhra Agric. J. 6(2):70-72.17. Reddy, T.G., M. Mahadevappa, and K.R. Kulkarni. 1979. Ratoon cropping of rainfed rice. Int. RiceRes. Newsl. 4(5):25-26.18. Reddy, T.G., M. Mahadevappa, W. R. Coffman. 1986. Ratoon crop performance of some promisinggenotypes in rice ( Oryza sativa L.). Submitted to Oryza.