It was suggested that low sink activities in grain filling period,especially at early stage,account for an important reason for poor grain plumpness in IHR. 说明灌浆期特别是灌浆初期籽粒库的生理活性低是亚种间杂交稻籽粒充实不良的重要原因。
There were differences of cumulative water consumption and daily water consumption among different growth stages, and the daily water consumption in filling stage was the highest. 各生育时期的耗水量和日耗水量在不同生育时期存在差异,其中以灌浆期春小麦日均耗水量为最高。