| 节水灌溉对夏玉米蒸腾效率的影响 |
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| 引用本文： | 李新有,梁宗锁.节水灌溉对夏玉米蒸腾效率的影响[J].华北农学报,1995,10(4):14-19. |
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| 作者姓名： | 李新有 梁宗锁 |
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| 作者单位： | 西北农业大学基础部 |
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| 基金项目： | 国家自然科学基金，中国科学院百人计划项目 |
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| 摘 要： | 对高、中、低三个不同代水量下的夏玉米蒸腾效率研究结果表明，在强光照下，供水不足引起ＷＵＥ明显下降，而在北光照下，不同供水量的ＷＵＥ相差不大，灌浆期复水后则产。供水不足时ＷＵＥ由供水量和光照共同决定，这是由于在强光照下不同供水量之间Ｐｎ差异很大，Ｔｒ无差异，而在弱光照下，Ｐｎ无差异，Ｔｒ差别明显所致，在强光照下，供水４４５ｍｍ的ＷＵＥ明显高于供水３５０ｍｍ和２８０ｍｍ的ＷＵＥ；在弱光照下，上述三个供
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| 关 键 词： | 玉米 节水 灌溉 蒸腾效率 蒸腾效率 光合速率 |
Effect of Water Saving Irrigation on Summer Maize Transpiration Efficiency |
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| Li Xinyou, Liang Zongsuo, Kang Shaozhong.Effect of Water Saving Irrigation on Summer Maize Transpiration Efficiency[J].Acta Agriculturae Boreali-Sinica,1995,10(4):14-19. |
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| Authors: | Li Xinyou Liang Zongsuo Kang Shaozhong |
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| Abstract: | Transpiration efficiency of summer maize was studied in three water content level.This experiment revealed that WUE decreased significantly in higher light intensity under water supply deficit. But WUE didn't decrease in lower light intensity and when rewatering at seed filling stage,WUE was the same in three levels. The result indicated that WUE depend upon the amount of water supply and the light intensity. The relationships. between Pn, Tr and P were studied in the paper. In higher light Pn differed greatly and Tr remained the same. |
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| Keywords: | Summer maize Water saving irrigation Transpiration efficiency Transpiration rate Photosynthesis rate |
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