关键词: 老茶树, 表型性状, 统计分析, 聚类分析

Abstract: [Objective] The objective of the study was to investigate the Studying on Pphenotypic diversity of cutting seedlings resources in old tea of Southern Shaanxi and to in order to provide excellent reserves for breeding. [Method] 55 old tea resources in Southern Shaanxi were conducted and by using statistical analysis and cluster were condected in this study. [Result] The change range and variation coefficient were relatively large in the old teas of southern Shaanxi. The Ddifferences between traits were significant and there was abundant in genetic diversity. The old tea resources were divided into 4 groups with cluster analysis. The first group included 13 old tea resources and the second group included 1 old tea resources, it is(B14-3). The third group included 16 old tea resources and, there is was more complex in the composed of 3rd group. The fourth group included 26 old tea resources. The rest of old teas were from Nanzheng Beiba in addition to theexcept for B14-34, B14-33, and B14-18, the rest of old teas were all not from Nanzheng Beiba in 1st group. [Conclusion] Cluster analysis is relatively accurate to reveal the differences between old tea resources from different areas and different ecological regions. It can provide the an scitientific basis for tea breeding.

Key words: old tea, phenotypic traits, statistical analysis, cluster analysis