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对亚亚种间重穗型杂交稻 K1 7A/ N45和珍汕 97A/ N45的灌浆特性研究表明 ,两个组合的上部籽粒灌浆启动迅速 ,积累干物质能力强、速度快、关键期短。生长中心可迅速转移到下部籽粒 ,达到中部籽粒同步发育进程。不表现明显的多次灌浆现象。灌浆能力与汕优 63相当 ,其灌浆差异在于上部籽粒
The study on the filling characteristics of sub-Asian intersubspecific panicle hybrid rice K1 7A / N45 and Zhenshan 97A / N45 showed that the upper grain filling of the two combinations started rapidly, the accumulation of dry matter was strong, fast and the key period was short. The growth center can be quickly transferred to the lower part of the grain to achieve the synchronous development of the central grain. Do not show obvious multiple grouting phenomenon. The grouting capacity is similar to that of Shanyou 63, and the difference in grouting lies in the upper grain