| 栝楼雌雄植株的光合作用和蒸腾作用特性 |
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| 引用本文： | Liu Y,Zhong ZC,Wang XX,Xie J,Yang WY. 栝楼雌雄植株的光合作用和蒸腾作用特性[J]. 应用生态学报, 2011, 22(3): 644-650 |
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| 作者姓名： | Liu Y Zhong ZC Wang XX Xie J Yang WY |
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| 作者单位： | 1. 西南大学资源环境学院三峡库区生态环境教育部重点实验室,重庆,400716
2. 西南大学生命科学学院,重庆,400715 |
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| 基金项目： | 教育部留学回国人员基金项目(2007),三峡库区生态环境教育部重点实验室自由探索研究基金项目资助 |
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| 摘 要： | 对栝楼雌雄植株生长发育关键时期的光合作用和蒸腾作用进行研究.结果表明:在营养生长阶段,栝楼雄株的光合速率、蒸腾速率、气孔导度和水分利用效率均大于雌株;雄株比雌株提前22 d进入生殖生长阶段,当雄株进入生殖生长阶段后,其光合速率、蒸腾速率和气孔导度均大于雌株,但水分利用效率略小于雌株;当雌株进入生殖生长阶段后,其蒸腾速率和气孔导度大于雄株,而光合速率和水分利用效率显著小于雄株.气候因子对栝楼生长发育的影响主要是在营养生长和生殖生长初期,栝楼生长发育后期对气候因子的响应程度减弱.较高的温度和较低的湿度有利干栝楼的生长发育,光照可提高栝楼尤其是雄株的光合速率.进入生殖生长后,雄株的光合速率随光照的增强显著增加,而雌株的光合速率增加不显著;随气温的升高,雄株的蒸腾速率显著提高,雌株的光合速率极显著提高.
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| 关 键 词： | 栝楼 雌雄异株 光合速率 蒸腾速率 气候因子 |
Photosynthesis and transpiration characteristics of female and male Trichosanthes kirilowii Maxim individuals |
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| Liu Yun,Zhong Zhang-cheng,Wang Xiao-xue,Xie Jun,Yang Wen-ying. Photosynthesis and transpiration characteristics of female and male Trichosanthes kirilowii Maxim individuals[J]. The journal of applied ecology, 2011, 22(3): 644-650 |
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| Authors: | Liu Yun Zhong Zhang-cheng Wang Xiao-xue Xie Jun Yang Wen-ying |
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| Affiliation: | LIU Yun1,ZHONG Zhang-cheng2,WANG Xiao-xue1,XIE Jun1,YANG Wen-ying1(1Ministry of Education Key Laboratory of Eco-Environment of Three Gorges Reservoir Region,College of Resources and Environment,Southwest University,Chongqing 400716,China,2College of Life Science,Chongqing 400715,China) |
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| Abstract: | A field research was conducted on the photosynthesis and transpiration characteristics of dioecious Trichosanthes kirilowii individuals at four key development stages.At vegetative growth stage,the photosynthesis rate,transpiration rate,stomatal conductance,and water use efficiency of male individuals were higher than those of female individuals,and hence,male individuals entered into reproductive growth stage 22 days earlier than female individuals.After entering into reproductive growth stage,male individ... |
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| Keywords: | Trichosanthes kirilowii dioecious plant photosynthesis rate transpiration rate climate factor. |
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