水分胁迫下李树叶绿素荧光动力学特性研究

胡学华; 蒲光兰; 肖千文; 刘永红; 邓家林

水分胁迫下李树叶绿素荧光动力学特性研究

1.
1.四川省农业科学院成都 610066; 2.四川省南方丘区节水农业研究重点实验室成都 610066
2.
四川农业大学林学园艺学院雅安 625014
3.
四川省农业科学院成都 610066

基金项目: “南方季节性缺水灌区节水农业综合技术体系集成与示范”子课题(“863”计划)［2002AA2Z4261］

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- 文章访问数: 1469
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出版历程
- 收稿日期: 2005-03-27
- 修回日期: 2005-06-29
- 刊出日期: 2006-12-31

Effects of water stress on chlorophyll fluorescence in leaves of plum(Prunus salicina Lindl.)

1.
1. Sichuan Academy of Agricultural Science, Chengdu 610066, China; 2. Key Lab of Water-saving Agriculture in the Southern Hill Region of China, Sichuan Province, Chengdu 610066, China
2.
College of Forest and Horticulture, Sichuan Agricultural University, Ya'an 625014, China
3.
Sichuan Academy of Agricultural Science, Chengdu 610066, China

摘要

摘要: 水分胁迫引起李树叶片叶绿素含量(CHL)、相对含水量(LRWC)下降，叶绿素荧光参数Fo升高，Fm、Fv、Fv/Fm、Fv/Fo、Fm/Fo和Fo与Fm曲线之间面积降低，表明水分胁迫影响了光系统Ⅱ光化学效率、潜在活性、捕获激发能的效率、光合电子的传递以及电子受体库的大小，从而导致光合速率下降。3个供试品种中以“索瑞斯”受影响最小，“秋姬”居中，“安哥洛”最大，说明“索瑞斯”抗旱性最强。
- 李树 /
- 水分胁迫 /
- 叶绿素荧光
Abstract: The effects of water stress on the chlorophyll fluorescence parameters of the plum were studied by using plant efficiency analyser (PEA). The results indicate that chlorophyll fluorescence parameters of leaf are changed obviously under water stress. Fo is increased; Fm, Fv, Fv/Fm, Fv/Fo, Fm/Fo and the area between the curves of Fo and Fm are decreased, suggesting that the primary light energy conversion of PSⅡ，the potential activities of PSⅡ，the potential photosynthetic activities, photosynthetic electron transport, etc. have been inhibited under water stress. The chlorophyll content, relative water content of plum leaves decrease under water stress. And the characteristics against water stress of three plums varieties are discussed.
- Prunus salicina Lindl. /

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计量

文章访问数: 1469

HTML全文浏览量: 64

PDF下载量: 1143

被引次数: 0

出版历程

收稿日期: 2005-03-27

修回日期: 2005-06-29

刊出日期: 2006-12-31

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