RICE RATOONING - IRRI books - International Rice Research Institute

RATOONING WITH RICE HYBRIDS 161and the ratoon crop yield was 1.8 t/ha (9.7 t/ha total), 25.9% higher than a singlecrop of hybrid rice. Zaishengyou was planted on 216 ha. The main crop yield was 8.2t/ha, the ratoon yield was 2.0 t/ha. Aiyou 1 was grown on 1,130 ha. The main cropyield was 7.9 t/ha, the ratoon yield was 1.7 t/ha.REFERENCES CITED1. Chauhan, J.S., B.S. Vergara, and F.S.S. Lopez. 1985. Rice ratooning. IRRI Res. Pap. Ser. 102. 19 p.2. Luo Wenzhi and Liu Qichang. 1979. Studies on rice ratooning and their utilization in China [inChinese]. Sichuan Agric. Sci. Tech. 1:52-62.3. Ren Changhu. 1982. Analysis on the correlated character in output structural factor of ratooning rice[in Chinese, English summary]. Southwestern Agric. Univ. 29-15.4. Sun Xiaohui, Tian Yanfa, and Ren Tianju. 1982. Studies on the effect of hybrid rice ratooning byapplying nitrogen fertilizer before the main crop harvest [in Chinese]. Sichuan Agric. Sci. Tech. 3:1-4.5. Yang Kaiqu. 1937. Initial report of studying on regenerative rice [in Chinese]. Agricultural College,Sichuan University.6. Yang Kaiqu. 1939. A study on correlation to major characters in ratoon varieties. J. Agric. Assoc.China 169:l-16.7. Yang Kaiqu. 1958. A study of regenerative rice [in Chinese, English summary]. Acta Agric. Sin. 9(2):107-133.8. Yang Kaiqu and Jiang Qixing. 1941. A study on young panicle development of ratoon tillers [inChinese]. Agricultural College, Sichuan University.9. Yang Kaiqu and Liu Chengbi. 1938. A study on vigor and growth of dormant buds on every nodeafter the main crop heading [in Chinese]. Agricultural College, Sichuan University.10. Yang Kaiqu and Liu Chengbi. 1938. Studies on regenerative rice. 2. The number of seedings per hilland the distance between hills and rows in relation to the characters of the dormant buds on the nodesof a culm [in Chinese, English summary]. Reprinted from the J. Agric. Assoc. China 169.11. Yang Kaiqu and Xiao Xiang. 1938. Influence of fruit and yield of the ratoon crop by harvesting timeand cutting height. Agricultural College, Sichuan University.12. Yang Kaiqu and Xiao Xiang. 1939. Influence on the main and the ratoon crop by sowing norm inseeding bed and seedlings per hill [in Chinese]. Agricultural College, Sichuan University.13. Zhang Mingpong and Liu Zhensheng. 1980. Studies on the distribution of photosynthetic productsand the absorption of nitrogen nutrients in regenerative rice by using isotopes 14 C and 15 N [in Chinese,English summary]. Chinese Agric. Sci. J. 3:l-5.