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作 者 ：董树亭

期 刊 ：作物学报 1991年 17卷 06期 页码：461-469

关键词：冬小麦；群体光合；产量；

Keywords:Winter wheat, Canopy apparent photosynthesis, Yield,

摘 要 ：研究了高产麦田群体光合速率变化及其与产量之间的关系。结果表明:小麦群体光合速率在整个生育期内的变化呈单峰型曲线,开花前后达最大值。大播量、大群体前期群体光合上升快,高峰期进入早,后期下降迅速;小播量,小群体则有利于后期群体光合能力的提高和保持。群体光合速率受单茎的发育状况、叶面积指数及光能截获率的综合影响

Abstract:Two winter wheat cultivars were planted in five densities in a well-cultured field forhigh yield to study the relationship between canopy apparent photosynthesis(CAP)rate and grain yield.The results indicated that the CAP rate of winter wheat duringthe entire growth period generally varied according

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