弱光对番茄幼苗PSⅡ热失活的影响

被引：2

作者：

孙常刚

张世伟

周海燕

机构：

[1] 招远市农业技术推广中心

来源：

山东农业科学 | 2012年 / 44卷 / 02期

关键词：

番茄; PSⅡ; 短时高温; 叶绿素荧光; 弱光;

D O I：

10.14083/j.issn.1001-4942.2012.02.029

中图分类号：

S641.2 [番茄（西红柿）];

学科分类号：

090202 ;

摘要：

通过测定叶绿素荧光参数,探讨了弱光[100μmol/(m2.s)]对番茄PSⅡ热失活的影响。在25～40℃处理下,Fo、Fv/Fm、TRo/CS、ETo/CS和DIo/CS变化不大,而45～50℃下黑暗处理引起番茄叶片Fv/Fm、TRo/CS和ETo/CS明显下降,Fo和DIo/CS显著升高,但弱光条件下,Fv/Fm、TRo/CS和ETo/CS下降的幅度小,Fo上升的幅度小。

引用

页码：35 / 38

页数：4

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