不同绿茶品种秋季叶绿素与光合效率比较及相关性研究  

Comparative and correlation study on chlorophyll and photosynthesis efficiency of the different green tea at autumn

作　　者：刘晓军[1] 唐晓波[1] 李春华[1] 

机构地区：[1]四川省农业科学院茶叶研究所,四川成都610066

出　　处：《西南农业学报》2008年第4期975-978,共4页Southwest China Journal of Agricultural Sciences

基　　金：四川省应用基础项目(2006J13-121)

摘　　要：选择3年生树龄的树冠面枝梢第3～5片叶片，测定分析了在秋季同等条件下不同品种与不同叶位的叶绿素含量与光合效率变化及相关性。结果表明：不同品种和叶位的叶绿素含量极显著相关，以南江大叶茶和第5片叶片叶绿素含量最高。光化学效率（Fv／Fm、Fv／Fo）以福鼎大白茶和第3片叶片最大，光化学效率与叶绿素含量并不完全一致，在第4、5叶位极显著负相关，可将第4、5片叶的叶绿素b含量作为高光效的选择指标之一。In the present paper,chlorophyll content and the photosynthesis efficiency change of the tea in different kinds and different leaves of 3 years young shoot were determined and analyzed on the autumn same condition. The results indicated that the different kinds and the different leaves＇ chlorophyll content had highly significant correlations. The fourth leaf and Nanjianb, dayecha had the highest content of chlorophyll. And the highest the photosynthesis efficiency（ Fv/Fm, Fv/Fo） expression was in the third leaf and Fudingdaba/cha, obviously the content of chlorophyll was not completely consistent with the photochemistry efficiency. It was highly significantly negative correlations at the 4th and 5th leaf. The 4th and 5th leafs＇ chlorophyll b content could be considered one of important selection indexes on high photochemistry efficiency.

关 键 词：茶树 秋季 叶绿素 光合效能 相关性 

分 类 号：S571.1[农业科学—茶叶生产加工]