| 孑遗植物银杏(Ginkgo biloba L.)雌雄株水分生理特征研究(英文) |
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| 引用本文： | 曹全,江洪,曾波,余树全,王彬,蒋馥蔚.孑遗植物银杏(Ginkgo biloba L.)雌雄株水分生理特征研究(英文)[J].Agricultural Science&Technology,2009(3). |
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| 作者姓名： | 曹全 江洪 曾波 余树全 王彬 蒋馥蔚 |
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| 作者单位： | 西南大学生命科学学院;三峡库区生态环境教育部重点实验室;南京大学国际地球系统科学研究所;浙江林学院国际生态中心; |
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| 基金项目： | Supported by the State Key Fundamental Science Fund of China(2005CB422208);;NSF-China Project(40671132);;the State Data Synthesis and Analysis Funds of China(2006DKA32300-08)~~ |
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| 摘 要： | Objective] The experiment aimed to study the difference of water physiology of male and female Ginkgo biloba L. for discussing the strategy of water utilization as well as the important role of this difference during evolution process. Method] The stem sap flow, stomatal conductance(Gs), transpiration rate(Tr) and water use efficiency (WUE) of male and female Ginkgo biloba L. were comparatively studied. Result] The day-night processes of flow on male and female Ginkgo biloba L. were similar. The flow on male and female Ginkgo biloba L. in day were almost same while the flow at night on male Ginkgo biloba L. was bigger than that on female Ginkgo biloba L. The Tr and Gs of male and female Ginkgo biloba L. were high in morning and at night but low at noon ,while Tr and Gs of female Ginkgo biloba L. in morning and at night were higher than these of male Ginkgo biloba L. at the same time point. However, these indexes of female plant were lower than these of male plant from 11:00 to 14:00. WUE changing trends of male and female Ginkgo biloba L. were similar, while average water utilization rate of female Ginkgo biloba L. was slightly lower than that of male Ginkgo biloba L. Conclusion] Compared with other companion plants, water physiology of male and female Ginkgo biloba L. had strong homoplasy. The phenomenon might be a survival strategy of dioecious plants under long term evolutionary pressure.
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| 关 键 词： | 银杏 气孔导度 液流密度 特征研究 树干液流 水分生理 蒸腾速率 雌雄株 水分利用效率 雌株 |
Preliminary Study on Water Physiological Characters of Male and Female Ginkgo biloba L. |
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| CAO Quan,JIANG Hong,,ZENG Bo,YU Shu-quan,WANG Bin,JIANG Fu-wei. Key laboratory of Eco-environments in Three gorges Reservoir Region of Ministry of Education,School of Life Science of Southwest University,Chongqing ,. International Institute of Earth System Science,Nanjing University,Nanjing ,. International Ecological Center of Zhejiang Forestry College,Hangzhou.Preliminary Study on Water Physiological Characters of Male and Female Ginkgo biloba L.[J].农业科学与技术(英文版),2009(3). |
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| Authors: | CAO Quan JIANG Hong ZENG Bo YU Shu-quan WANG Bin JIANG Fu-wei Key laboratory of Eco-environments in Three gorges Reservoir Region of Ministry of Education School of Life Science of Southwest University Chongqing International Institute of Earth System Science Nanjing University Nanjing International Ecological Center of Zhejiang Forestry College Hangzhou |
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| Institution: | CAO Quan1,JIANG Hong1,2,3,ZENG Bo1,YU Shu-quan3,WANG Bin3,JIANG Fu-wei11. Key laboratory of Eco-environments in Three gorges Reservoir Region of Ministry of Education,School of Life Science of Southwest University,Chongqing 400715,2. International Institute of Earth System Science,Nanjing University,Nanjing 210093,3. International Ecological Center of Zhejiang Forestry College,Hangzhou 311300 |
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| Abstract: | Objective] The experiment aimed to study the difference of water physiology of male and female Ginkgo biloba L. for discussing the strategy of water utilization as well as the important role of this difference during evolution process. Method] The stem sap flow, stomatal conductance(Gs), transpiration rate(Tr) and water use efficiency (WUE) of male and female Ginkgo biloba L. were comparatively studied. Result] The day-night processes of flow on male and female Ginkgo biloba L. were similar. The flow on ... |
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| Keywords: | Ginkgo biloba L Male and female plants Water physiology |
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