Maximum grain filling rate and grain weight increase were also achieved in the denucleation developing stage of most starchy endosperm cells.
去核化发育阶段籽粒灌浆速率最高，籽粒增重亦最快。
The translocation characters of reserves in stem and sheath and its relation to the grain filling were studied during ripening stage with different types of two-line hybrid rice.
选用不同类型两系杂交稻组合，研究了结实期茎鞘物质运转与籽粒灌浆结实的关系。
It is suggested that photosynthetical production be increased in the middle and late stage of grain filling(15-20 days after flowering)to increase grain weight.
认为在高产育种和栽培中，应重视提高灌浆中后期（开花15～20天以后）的物质生产能力，提高粒重。
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