| 水分胁迫对冬小麦叶片CO2／H2O交换参数的影响 |
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| 引用本文： | 张永强,刘昌明,杨永辉,沈彦俊.水分胁迫对冬小麦叶片CO2／H2O交换参数的影响[J].生态学杂志,2001,20(2):8-11. |
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| 作者姓名： | 张永强 刘昌明 杨永辉 沈彦俊 |
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| 作者单位： | 中国科学院石家庄农业现代化研究所，石家庄050021 |
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| 基金项目： | 本论文得到国家自然科学基金项目（49890330）、中国科学院石家庄农业现代化所所长基金项目（2000年度）的资助。 |
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| 摘 要： |
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| 关 键 词： | 冬小麦 水分胁迫 叶片CO2／H2O交换 水分利用 |
| 文章编号： | 1000-4890(2001)02-0008-04 |
Effect of Soil Water
Stress on CO2/H2O Exchange Parameters in Wheat Leaves |
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| Zhang Yongqiang.Effect of Soil Water
Stress on CO2/H2O Exchange Parameters in Wheat Leaves[J].Chinese Journal of Ecology,2001,20(2):8-11. |
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| Authors: | Zhang Yongqiang |
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| Abstract: | Changes of CO2/H2O exchange parameters were continually measuredin winter wheat under different water stress stages.The results showed that photosynthesis rate and transpiration rate of winter wheat in water stress conditions were obviously lower than that in non-stress conditions.After water stress,both of them slowly increased and even overtook that on sufficient irrigation treatment. Responses of winter wheat to water stress in different growth stages were different.To some extent, water stress can improve crop water use efficiency,speed up the process of milking.Under water stress condition,stomatal conductance limited diurnal changes of photosynthesis and transpiration in the morning but not in the afternoon.Transpiration is more sensitive to water stress than photosynthesis. |
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| Keywords: | winter wheat water stress CO2/H2O exchange parameters |
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