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对小麦新品种豫农9901在不同播种期和不同播种量下的子粒灌浆特性进行了研究.结果表明,豫农9901的子粒灌浆规律符合Logistic生长曲线.播种期对子粒灌浆和粒重有较大的影响,而播种量的影响较小.影响粒重的灌浆参数主要是灌浆速率和灌浆持续时间,而且各阶段的灌浆速率和灌浆持续时间对粒重也有较大影响,其中渐增期的持续时间所起的作用最大,其次是缓增期的灌浆速率.
The grain filling characteristics of a new wheat cultivar Yunong 9901 at different sowing dates and sowing rates were studied.The results showed that the grain filling pattern of Yuong 9901 accorded with Logistic growth curve.The grain filling and grain weight of sowing date were larger , While the effect of seeding rate was small.The grain filling parameters affecting grain weight were mainly filling rate and filling duration, and grain filling rate and filling duration at each stage also had a greater impact on grain weight, of which the increasing period continued Time played the largest role, followed by the slow-growing filling rate.