安徽农业科学2011，Vol.39Issue(17)：10275-10277,3.
银杏不同部位叶片叶绿素荧光参数动态变化规律研究
Dynamic Change Laws of Chlorophyll Fluorescence Parameters in Different Parts of Leaves of Ginkgo biloba
摘要
Abstract
[ Objective ] The aim was to explore the dynamic change laws of chlorophyll fluorescence parameters in different parts of leaves of Ginkgo biloba. [ Method ] The G. biloba cultivated in North China was used as materials in this study to explore the law of daily change and ten-day change of the chlorophyll fluorescence parameters of leaves in different parts of leaves. [ Result] The daily change of Fm (maximal fluorescence ), Fv ( variable fluorescence ), Ft/Fm, Fm/Fo ( electron transfer rate), Ft/Fo ( potential activity of PS Ⅱ ) in leaves of G. biloba obviously presented a descending-ascending trend, the lowest value was at 12:00 and the NPQ (non-photochemical quenching) of sunny leaves arrived at the maximum at noon. The values of Fm, Fv, Fl/Fm, Fm/Fo, Fv/Fo in shade leaves of G. biloba were obviously higher than those in sunny leaves, but the peak value of NPQ of shade leaves presented earlier and higher, suggesting that the shade leaves might have more sensitive hot dissipation mechanism. Comparing to sunny leaves, shade leaves had the higher PS Ⅱ potential activity and inner light energy translation efficiency. [ Conclusion ] This study had provided theoretical basis for the protection of G. biloba resources.关键词
银杏/叶绿素荧光/阳生叶/阴生叶/日动态/旬变化Key words
Ginkgo biloba/ Chlorophyll fluorescence/ Sunny leaves/ Shade leaves/ Daily change/ Ten-day change分类
农业科技引用本文复制引用
王秀珍,段爱国,保尔江,张建国..银杏不同部位叶片叶绿素荧光参数动态变化规律研究[J].安徽农业科学,2011,39(17):10275-10277,3.基金项目
国家林业局林业重点工程科技支撑项目. （）
