摘要
对南方红豆杉(Taxus chinensis var.mairei)不同冠层叶片的叶绿体色素含量进行了测定。结果表明,叶绿体色素中叶绿素a的含量最高,叶绿素b含量次之,类胡萝卜素含量最低。回归分析显示叶绿素a浓度、叶绿素b浓度、叶绿素总含量与SPAD值均有很好的相关性,可以用SPAD值代表叶片中叶绿素的总含量。一年生叶片和二年生叶片中叶绿素含量无显著差异,冠层不同部位叶片中叶绿素含量差异显著(P<0.05),其中西面、内层和下层叶片中的叶绿素含量较其他部位的高,东面叶片中叶绿素含量较低。
The chlorophyll contents in the leaves of Taxus chinensis var.mairei at different canopies were measured.Results showed that among the pigments of the chloroplast,the content of chlorophyll-a was the highest,followed by that of chlorophyll-b,and carotenoid content was the lowest.The correlation between SPAD values and the concentration of chlorophyll a,chlorophyll b,the total contents of chlorophyll in the leaves were analyzed,showing that there were good correlation between them.The difference between chlorophyll contents in the one-year old leaves and two-year old leaves was not significant,while the difference among leaf chlorophyll contents at different position in canopy was significant.Chlorophyll contents in the leaves at western,inner and lower position of canopy were higher than those in the leaves at eastern position.
出处
《湖北农业科学》
北大核心
2013年第19期4683-4685,共3页
Hubei Agricultural Sciences
基金
国家自然科学基金项目(31270740)
湖北省教育厅重点项目(D20101306)
湖北省人事厅项目(2011-762)
