半干旱区玉米不同叶位光合特征研究
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S513

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Studies on Photosynthetic Characteristics in Different Leaf Positions of Maize in Semiarid Area
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    摘要:

    以3个玉米品种为试验材料,对5个密度进行了不同叶位光合反应的研究。结果表明,玉米植株上部叶位光合速率高于下部叶位光合速率,穗位叶上部光合速率差值高于下部光合速率差值。种植密度对各叶位光合速率有一定影响,各叶位光合速率以6万株/hm2为密度轴线。

    Abstract:

    The study was carried out to investigate the photosynthetic characteristics in different leaf positions of maize for three maize varieties under five density levels. The results showed that the photosynthetic rates of the three maize varieties were higher in upper leaves than in lower leaves, the difference of photosynthetic rates for the upper leaves of ear-leaf were higher than the lower ones of them. Photosynthetic rate of every leaf position was slightly affected by planting density, and the 60,000 plants/hm2 was used as density axis of photosynthetic rate of every leaf position.

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常莹,闫伟平,李程,吴春胜,边少锋,彭涛涛.半干旱区玉米不同叶位光合特征研究[J].东北农业科学,2014,39(2):1-4,17.

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  • 收稿日期:2013-08-24
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  • 在线发布日期: 2024-12-06
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