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为给杂交小麦品种绵杂麦168的高产栽培提供参考,该试验就密度与施氮量对杂交小麦品种绵杂麦168籽粒灌浆特性的影响进行了研究.结果表明:绵杂麦168籽粒灌浆过程符合Logistic曲线方程.氮肥主要通过灌浆期各阶段的灌浆速率显著地影响籽粒质量;密度是通过渐增期持续天数和渐增期与快增期灌浆速率显著地影响籽粒质量.随着施氮量的增加,灌浆期各阶段的灌浆速率逐渐降低,最终千粒质量逐渐降低;随着密度的增加,渐增期持续天数和渐增期与快增期灌浆速率呈逐渐减少趋势,千粒质量逐渐降低.
In order to provide references for the high-yielding cultivation of hybrid wheat variety Mowaimai 168, the effects of density and nitrogen application rate on the grain filling characteristics of hybrid wheat variety Moutai 168 were studied.The results showed that: Which accorded with the Logistic curve equation.Nitrogen fertilization significantly affected the grain quality through the filling rate at each stage of filling stage.The density was significantly affected by the number of successive days of increasing stage and the filling rate of increasing stage and fast growing stage.With the nitrogen application rate The grain filling rate gradually decreased at each stage of grain filling, and the quality of 1000 grain eventually decreased. With the increasing of density, the number of growing days and the grain filling rate of increasing stage and fast increasing stage decreased gradually with the increasing of density, reduce.