作　　者： ; ; ;

机构地区： 韩山师范学院生物系

出　　处： 《广东农业科学》 2014年第11期25-28,42,共5页

摘　　要： 以30种凤凰茶树品系为材料,对叶脉、叶缘锯齿、叶形指数、叶绿素含量、叶面积(LA)、叶干物质量(LDMC)、比叶面积(SLA)等7个重要性状进行研究。以单因素方差分析对其差异显著性进行检验,以主成分分析(PCA)对所测变量进行降维处理,并根据30种茶树品系叶性状在3个主成分轴上的具体得分,对其进行聚类分析。结果显示,30种凤凰茶品系之间叶形态和功能性状有显著差异;比叶面积变异最大(变异幅为23.06%),不同茶品系对资源的有效利用率有较大差异;叶绿素含量高、叶缘锯齿少的一些品系如宋种、蜜兰香、黄栀香、茉莉香、桂花香、八仙、柚花香对资源有效利用率高;叶绿素含量少、叶缘锯齿数目多的玉兰香、杨梅叶、贡香、梅占、玉兰香、兄弟仔、竹叶对资源有效利用率较低。 In this study, leaf vein, serration of leaf margin, index of leaf shape, chlorophyll content, leaf area （LA）, leaf dry matter content （LDMC）, specific leaf area （SLA） were investigated to detect their difference among 30 kinds of tea tree cultivars. The principal components analysis was used to reduce dimension, and further to cluster based on the score of leaf traits in the three principal component axis. The results showed that there were significant differences in leaf morphological and functional traits among the 30 kinds of Fenghuang tea cultivars. The variation of SLA was 23.06%, indicating that there were differences in resources utilization among the 30 Kincls of tea cultivars. The tea cuhivars with higher chlorophyll content, less serration of leaf margin had high resources utilization, whereas those with lower chlorophyll content, more serration of leaf margin had low resources utilization.

关 键 词： 凤凰茶 叶性状 变异 主成分分析

领　　域： [农业科学] [农业科学]