播期对冬小麦叶面积及其结构的影响

1990～1991年,在石河子农学院农学试验站进行了不同品种、不同播期冬小麦生长分析的研究。结果表明:适期早播有利于冬前叶面积的生长、干物质的积累,同时对返青时的叶面积增长和干物质生产也有利。不同播期的叶面积系数动态和光合势动态只有量上的差异过程相似。播期对叶片的厚薄、器官之间干重比例无大的影响;播期对籽粒灌浆的量有影响,对其基本过程无影响。

The Influences of seeding Date on Leaf Area and the Structure of Leafarea in Winter Wheat

It shows that studies on the growth analysis of winter wheat in two species and four seeding date, as a result : due and earlier seeding date would take privelige of enhancing leaf area not only dry matter accumulation in winter ahead but beginning spring else. There are an analoge proceeds in enhancing of leaf area and amount of leaf area, but there are a few different quantities in the ratio of organ dry matter weight and specific leaf area (SLA). But it influence the thousands ear of weight and little influence on the proceeds of translocate matter.