| 内蒙乌海胡杨异形叶水分及叶绿素荧光参数的比较 |
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| 引用本文： | 郝建卿,吕娜,杨扬,李文海,白雪,郑彩霞.内蒙乌海胡杨异形叶水分及叶绿素荧光参数的比较[J].北京林业大学学报,2010,32(5):41-44. |
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| 作者姓名： | 郝建卿 吕娜 杨扬 李文海 白雪 郑彩霞 |
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| 作者单位： | 北京林业大学林木育种国家工程实验室，林木花卉遗传育种教育部重点实验室，国家林业局树木花卉育种与生物工程重点开放实验室，北京林业大学生物科学与技术学院 |
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| 摘 要： | 以乌海胡杨岛上胡杨幼树和大树的异形叶为实验材料,研究异形叶的叶绿素荧光动力学参数、含水量以及自由水和束缚水比值变化特征。结果表明:幼树披针形叶片F0、Fm、Fv/Fm和Fv/F0的值最小,而大树卵圆形叶片的Fm、Fv/F0和Fv/Fm值最小,锯齿卵圆形叶片的F0值最小。与幼树相比,大树异形叶的自由水含量均有不同程度的上升,其中以披针形叶片自由水含量上升幅度最大,为78.94%;锯齿卵圆形和卵圆形叶片分别上升了10.60%和10.99%。幼树叶片的自由水含量与Fv/Fm、Fv/F0呈极显著正相关关系,大树叶片的含水量与Fv/Fm、Fv/F0呈极显著正相关关系。
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| 关 键 词： | 胡杨 异形叶 叶绿素荧光动力学参数 水分生理 |
| 收稿时间： | 1900-01-01 |
Comparative study of chlorophyll fluorescence parameters and water physiological characters of heteromorphic leaves for Populus euphratica |
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| HAO Jian-qing,L Na,YANG Yang,LI Wen-hai,BAI Xue,ZHENG Cai-xia.Comparative study of chlorophyll fluorescence parameters and water physiological characters of heteromorphic leaves for Populus euphratica[J].Journal of Beijing Forestry University,2010,32(5):41-44. |
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| Authors: | HAO Jian-qing L Na YANG Yang LI Wen-hai BAI Xue ZHENG Cai-xia |
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| Institution: | National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Tree and Ornamental Plant Breeding and Biotechnology Laboratory of State Forestry Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, P.R. China. |
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| Abstract: | The changes of chlorophyll fluorescence parameters and free water and bound water of three typical heteromorphic leaves of Populus euphratica,both in young trees and old trees,were investigated.The results showed that the values of F0,Fm,Fv/Fm and Fv/F0 of lanceolate leaves were the least in young trees,while those of Fm,Fv/F0 and Fv/Fm of ovate leaves were the least in old trees.Compared with the young trees,the free water content of heteromorphic leaves of old trees increased significantly by 78.94% in la... |
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| Keywords: | Populus euphratica heteromorphic leaf chlorophyll fluorescence parameters water physiology |
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