| 水分胁迫对小麦叶片光合放氧过程的影响 |
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| 引用本文： | 石兰馨,王邦锡.水分胁迫对小麦叶片光合放氧过程的影响[J].兰州大学学报(自然科学版),1991,27(4):132-136. |
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| 作者姓名： | 石兰馨 王邦锡 |
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| 作者单位： | 兰州大学生物系，兰州大学生物系，兰州大学生物系 兰州，730000，兰州，730000，兰州，730000 |
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| 摘 要： |
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| 关 键 词： | 小麦 叶片 水分胁迫 光合放氧速率 |
Effect of Water Stress on the CO_2--Supported Photosynthetic O_2-Evolution of Wheat |
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| Shi Lanxin,Wang Bangxi,Huang Jiuchang.Effect of Water Stress on the CO_2--Supported Photosynthetic O_2-Evolution of Wheat[J].Journal of Lanzhou University(Natural Science),1991,27(4):132-136. |
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| Authors: | Shi Lanxin Wang Bangxi Huang Jiuchang |
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| Institution: | Shi Lanxin,Wang Bangxi,Huang Jiuchang Department of Biology,Lanzhou University,Lanzhou,730000 |
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| Abstract: | When wheat (Triticum aestivum L .cv. Longchun No. 10) was subjectedto osmotic stress or soil drought, photosynthetic O_2-evolution rate wasreduced remarkably, the light compensation point increased and the lightsaturation point decreased, the lag time of photosynthesis lengthened. Inthe early water stress, the rate of respiratory O_2-uptake rose, but itdeclined as the stress became stern. Photosynthetic O_2-evolution rateapproached control's level after rewatering. These results suggested thatthe sharp decrease of net O_2-evolution was due to both the injury ofphotosynthetic apparatus and the increase of respiratory rate. |
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| Keywords: | osmotic stress soil drought CO_2--supported photosynthetic O_2--evolution rate respiratory O_2--uptake rate |
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