云南省景洪市古茶树资源农艺性状多样性分析  

Diversity Analysis on Agronomic Traits of Ancient Tea Trees in Jinghong City of Yunnan Province

作　　者：尚卫琼[1] 杨勇 段志芬[1] 杨毅坚[1] 李友勇[1] 孙承冕[1] 郭顺云 刘本英[1] 

机构地区：[1]云南省农业科学院茶叶研究所/云南省茶树种质资源创新与配套栽培技术工程研究中心,云南勐海666201 [2]景洪市农业局经济作物工作站,云南景洪666101

出　　处：《山东农业科学》2015年第11期23-26,共4页Shandong Agricultural Sciences

基　　金：国家自然科学基金项目"云南大叶茶资源核心种质构建及优异种质筛选"(31440034);国家自然科学基金项目"云南珍稀野生茶树资源的遗传多样性及特异资源发掘"(31160175);农业部农作物种质资源保护与利用专项(2014NWB028);农业部"948"计划项目(2014-Z56);云南省技术创新人才计划项目(2011CI068);国家茶叶现代产业技术体系建设项目(NYCYTX-23)

摘　　要：通过对云南省景洪市古茶树群落进行实地考察,全面摸清了该市古茶树群落种类、分布现状和生长情况,主要包括其海拔高度、树龄、树姿、树幅、干径、叶形和花瓣特征等。以12个代表茶区88份古茶树种质资源为供试材料,对茶树的形态特征和农艺性状进行统计分析。结果表明,检测的8个农艺性状变异系数在15.51%-57.74%之间,从大到小排列依次为最低分枝高〉叶面积〉树幅〉树高〉叶长〉叶宽〉花冠直径〉果实大小;古茶树农艺性状13个特征向量中4个主成分的累计贡献率达到73.026%,第一主成分至第四主成分的贡献率依次为：34.830%、15.824%、12.902%、9.470%。Through investigating the ancient tea tree community in Jinghong City of Yunnan Province,the community types,distribution and growth status of ancient tea trees were comprehensively found out,including the altitude,tree age,tree performance,tree margin,stem diameter,leaf shape,petal characteristics,etc. The morphological and agronomic characters of 88 tea germplasm resources in 12 tea regions were statistically analyzed. The results showed that the variable coefficients of 8 agronomic characters ranged from15. 51% to 57. 74% in the order of the lowest branch height,leaf area,tree margin,tree height,leaf length,leaf width,corolla diameter,fruit size. The feature vector contribution rates of 4 main components in 13 agronomic characters accounted for 73. 026%,which were 34. 830%,15. 824%,12. 902%,9. 470% from the first to the fourth.

关 键 词：古茶树 农艺性状 多样性分析 云南省景洪市 

分 类 号：S571.102.4[农业科学—茶叶生产加工]