| 广西热带岩溶区苹婆幼树光合蒸腾特性研究 |
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| 引用本文： | 朱宏光,农友,苏建苗,王家妍,李燕群,刘正富,赵金龙,林建勇,温远光.广西热带岩溶区苹婆幼树光合蒸腾特性研究[J].安徽农业科学,2011(13):7751-7752,7806. |
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| 作者姓名： | 朱宏光 农友 苏建苗 王家妍 李燕群 刘正富 赵金龙 林建勇 温远光 |
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| 作者单位： | 广西大学林学院;中国林业科学研究院热带林业实验中心; |
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| 基金项目： | 广西自然科学基金项目(桂科基0639006); 中南速生材繁育重点实验室开放基金项目(KF[2004]-002); “十一五”广西林业科技项目(林科字[2008]第08号) |
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| 摘 要： | 目的]探讨北热带岩溶区主要树种苹婆幼树的光合蒸腾特性。方法]利用1年生苹婆实生苗,经盆栽和控水试验,研究其净光合速率、蒸腾速率、气孔导度、胞间CO2浓度、水分利用效率等的变化。结果]长期干旱胁迫和正常供水的苹婆幼树,其净光合速率、蒸腾速率、气孔导度、水分利用效率有极显著差异,干旱胁迫将导致净光合速率、蒸腾速率和气孔导度显著降低,而水分利用效率有所提高。结论]苹婆属于光合速率、蒸腾速率和水分利用效率较低的树种。
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| 关 键 词： | 苹婆 净光合速率 蒸腾速率 气孔导度 水分利用效率 岩溶地区 |
Photosynthesis and Transpiration Characteristics of Sterculia nobililis Seedlings in Guangxi Tropical Karst Area |
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| ZHU Hong-guang et al.Photosynthesis and Transpiration Characteristics of Sterculia nobililis Seedlings in Guangxi Tropical Karst Area[J].Journal of Anhui Agricultural Sciences,2011(13):7751-7752,7806. |
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| Authors: | ZHU Hong-guang |
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| Institution: | ZHU Hong-guang et al(Forestry College,Guangxi University,Nanning,Guangxi 530004) |
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| Abstract: | Objective] The aim of this paper was to study the photosynthesis and transpiration characteristics of S.nobililis seedlings under different water conditions.Method] The effect of water stress on the net photosynthesis rate,transpiration rate,stomata conduct,intercellular carbon dioxide concentration and water use efficiency of 1-year old seedlings of S.nobililis was studied by pot experiment.Result] There were significant difference in net photosynthesis rate,transpiration rate,stomata conduct and water ... |
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| Keywords: | Sterculia nobililis Net photosynthesis rate Transpiration rate Stomata conduct Water use efficiency Karst areas |
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