ultravpnControl of Grain Yield by Sink Capacity and Assimilate Supply in Various Rice ( Oryza sativa)
cultivars
期刊名称： Experimental Agriculture
作者： Fukai, S.,Li, L.,Vizmonte, P. T.,Fischer, K. S.
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ny是啥意思呀年份： 1991年
pldd
如何让自己内心强大期号： 第02期
agent
关键词： Oryza sativa, dry matter accumulation, bioavailability, source-sink
relationships, cultivars, yield components, assimilation, crop yield
摘要：The objective of this study was to identify whether grain yield in four contrasting rice cultivars is limited by supply of assimilate to fill the grains or by sink capacity to accept the assimilate. Grain yield was limited mostly by sink capacity, with little variation in single grain weight among cultivars, but an ol
d cultivar showed some ability to adjust single grain weight. Sink capacity was very nsitive to variation in assimilate supply immediately after anthesis. Reduction in assimilate supply in the anthesis to early grain filling period reduced filled grain percentage and grain yield, particularly in high yielding cultivars with a large number of grains per panicle.hakka>hear me cry
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