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对化杀杂种小麦灌浆特性及播期、密度、灌水效应的研究表明，其灌浆规律与常规（亲本）品种相同，籽粒增重遵循慢—快—慢的节律变化，同时具有自己的特性。杂种的快速增重期较对照早１～３天，灌浆速度峰值超对照优势达２４．７１％～４６．３４％，且持续时间长，灌浆速度的峰面宽，因而单粒重比对照高６～１１ｍｇ，但不同部位小穗间的粒重差异依然存在，且较对照大。杂种的灌浆特性与亲本有关，但仍表现出明显的超亲优势。播期、密度、灌水等影响灌浆进程，因而可通过亲本选配、强优势组合筛选及农艺措施调节进一步发挥杂种的粒重优势
The study on grain filling characteristics, sowing date, density and irrigation effect of hybrid wheat showed that its grain-filling law was the same as the conventional (parental) varieties. The grain weight gain followed slow-fast-slow rhythm changes and had its own characteristics at the same time. The rapid weight gain period of hybrids was 1 to 3 days earlier than that of the control, and the peak super-control of grain filling rate reached 24.71% ~ 46.34%. The duration of the hybrids was fast and the peak of filling speed was wide. 6 ~ 11mg, but different parts of the spikelet size differences still exist, and larger than the control. Grouting characteristics of the hybrids are related to their parents, but they still show significant superfamilies. Sowing date, planting density, and irrigation affect the grain filling process, and thus can further exert the grain weight advantage of the hybrid through the matching of the parents, the selection of the strong dominant combination and the adjustment of agronomic practices