aving a stuly on the relationship between the ecological condition and sprouting ofaxillary bud .as well as yield of the ratooning rice .it was found that : 1. Sprouting number ofaxillary bud had a parabolic relationship with daily average temperature and relative humidityafter harvest , with the regression equations of =18. 6603x- 0. 3657x￣2-233. 2135 and =6. 1187x- 0. 0369x￣2 - 248. 6716 , respectively . and thus the suitable temperature and relativehumidity for sprouting of axillary, bud would b...