Observational study on Ratoon crop yield and some qualitative and quantitve and quntative traits in Rice varieties
2003
ُُSُُُُُharafi , Naser | Dorosti, Hamid | Salman, Hasan
In order to evaluate the ratoon yield in different rice varieties and study on other traits were selected no. of a varieties both local and improved namely hasani , hashemi, alikazemi, domsiah, sepeedrod, dorfak (424), kados (4), lines of 216 and 507. after harvesting of first crop, buds of plant residuals started to grow, after some days were formed ratoon panicles. Irrigation and Azote fertilizer were given to ratoon farm and during nov. ratoon crop matured graduately. Agronomic traits Including of plant height, no. tillers, no. grain in panicle, yield and quality parameters were evaluated. Results showed that 4 varieties had effective ratoon yield Including Alikazemi, Hashemi, Hasani and sepeedrod. Highest yield was related to Hasani (1.2 t/ha). Proper temperature and adequate water were most effective on ratoon yield. Highest yield is related to hasani (150 gr/m2). Results showed that early maturity varieties have higher ratooning property and in Gilan province farmers can produce rice ratoon untill half of Nov. with a high trust.
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