| 限量灌水对冬小麦光合性能和水分利用的影响 |
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| 引用本文： | 许振柱,于振文.限量灌水对冬小麦光合性能和水分利用的影响[J].华北农学报,1997,12(2):65-70. |
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| 作者姓名： | 许振柱 于振文 |
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| 作者单位： | 山东农业大学农学系 |
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| 摘 要： | 在自然大田和人工防雨池栽条件下，研究了限量灌水对冬小麦光合性能和水分利用的影响。结果表明，田间土壤耗水强度以拔节于挑旗期间为最大，此期间限量灌水较显著地减缓了冬小麦生育后期光合面积的衰减，使叶片的气阻阻力降低，蒸腾强度升高，群体和叶片的光合速率均升高，改善了光合性能，提高了产量和水分利用率。
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| 关 键 词： | 限量灌水 冬小麦 光合性能 水分利用率 |
Effects of Limited Irrigation on Photosynthetic Capacity and Water Utilization of Winter Wheat |
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| Xu Zhenzhu,Yu Zhenwen,Li Hui,Yu Songlie.Effects of Limited Irrigation on Photosynthetic Capacity and Water Utilization of Winter Wheat[J].Acta Agriculturae Boreali-Sinica,1997,12(2):65-70. |
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| Authors: | Xu Zhenzhu Yu Zhenwen Li Hui Yu Songlie |
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| Abstract: | The effects of limited irrigation on photosynthetic capacity and water utilization of winter wheat were studied in natural field and rainfall proof trough cultivation.The maximum water consumption by winter wheat per day was in the jointing stage and to flag leaf stage. Limited irrigation can inhibite decrease of leaf area in winter wheat in the period and decrease stomatal resistance of leaves and increase photosynthetic rate of colony and leaf,resulting in photosynthetic capacity was better,water utilization efficiency for economic yield was increased. |
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| Keywords: | Limited irrigation Winter wheat Photosynthetic capacity Water utilization efficiency |
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