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中国农学通报 ›› 2005, Vol. 21 ›› Issue (4): 162-162.

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The Photosynthesis Characteristics of the Winter Wheat Colony of different Density

由海霞   

  • 出版日期:2005-04-05 发布日期:2005-04-05

The Photosynthesis Characteristics of the Winter Wheat Colony of different Density

You Haiia   

  • Online:2005-04-05 Published:2005-04-05

摘要: 通过系统分析不同密度冬小麦群体的光合作用特性表明,密度对冬小麦群体的结构、光照特征、单叶光合生理性能均有显著的调节功能,从而显著影响产量水平的发挥。群体透光率作为群体叶面积系数和叶倾角对光环境作用的综合表现而主要由群体的叶面积系数影响,且合理的群体大小是保证具有较高的净光合速率和蒸腾速率而获得高产的基础。试验范围内以密度105 kg/hm2群体的透光特性、旗叶光合生理性能和产量各因子表现最佳而产量最高,是最佳的密度水平,其次是135kg/hm2。

Abstract: Based on the network analysis of the photosynthesis characteristic of the winter wheat colony of different density,this paper indicated that the density can remarkably influence the colony structure, the light distribution and the Photosynthesis characteri