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本文研究了旱地条件下不同小麦品种籽粒灌浆进程模型及灌浆特性与粒重、籽粒饱满度的关系。结果表明，小麦灌浆期间籽粒干物质积累以ｌｏｇｉｓｔｉｃ曲线递增，籽粒含水量呈直线下降，灌浆速度的变化为单峰曲线。旱地条件下的籽粒灌浆速度较水浇地上升得快、高峰期提前。灌浆中前期灌浆速度的快慢在很大程度上决定了粒重的高低，开花后８～１７ｄ灌浆速度快的品种千粒重高。在粒重相近的情况下，平均灌浆速度快的品种籽粒饱满度好。灌浆中后期品种间籽粒含水量差异较大，籽粒含水量高者其饱满度差。因此，选育小麦耐旱品种，应以选择灌浆中前期灌浆速度快、后期脱水较迅速的材料力宜。
In this paper, the relationship between grain filling process model and grain filling traits and grain weight and grain plumpness of different wheat varieties under dry land conditions was studied. The results showed that grain dry matter accumulation during grain filling increased with logistic curve, grain water content decreased linearly, and grain filling rate changed to single peak curve. Under dry land conditions, grain filling rate increased faster than irrigation, early peak. Grouting early and late filling speed largely determines the level of grain weight, flowering 8 ~ 17d grain filling rate of 1000 grain weight high. In the case of similar grain weight, the average grain filling rate of varieties with good plumpness. The grain moisture content of the middle and late grain filling varied greatly, while the high grain water content was poor. Therefore, the selection of wheat drought-tolerant varieties, should choose the early filling grouting fast, late dehydration more rapid material force should.