安徽农业科学2018，Vol.46Issue(8)：1-6,6.
古蔺野生大茶树资源叶表型多样性研究
Leaf Phenotypic Diversity of Big Natural Tea Resource in Gulin
摘要
Abstract
[Objective]The aim was to clear leaf phenotypic diversity of big natural tea resource in Gulin.[Method]The phentypic diversity a-nalysis of 18 leaf morphological traits of 139 big natural tea resources(7 natural populations)was carried out.[Result]The phentotypic traits of big natural tea resources were of extremely rich variation.The variation coefficient of 18 leaf morphological traits ranged from 4.42%to 24.28%, with more than 10.00% among all the natural populations.The diversity index ranged from 0.826 1 to 5.194 7(the Simpson index from 0.826 1 to 1.000 0,the Shannon-Weaver index from 2.413 1 to 5.194 7).Principal component analysis of 18 phenttypic traits were analyzed,the result showed that the traits involving leaf area,leaf margin undulation,leaf width,leaf upper surface,leaf colour,leaf cross section were the main factors with the accumulated contribution at 74.65%.The seven populations could be divided into four categories when the distance coefficient was 2.290 0 by UPGMA.The genetic distance of population 2 and population 7 was the biggest for 3.996 2,but the genetic distance of population 4 and population 5 was least for 1.932 9.[Conclusion]The results provide reference for collection,breeding,development and utilization of tea tree excellent germplasm resources.关键词
野生大茶树/叶片/表型性状/多样性Key words
Big natural tea resource/Leaf/Phenotypic traits/Diversity分类
农业科技引用本文复制引用
王小萍,唐晓波,彭海,张厅,刘飞,刘晓,龚雪蛟,李春华,王云..古蔺野生大茶树资源叶表型多样性研究[J].安徽农业科学,2018,46(8):1-6,6.基金项目
四川省"十三五"茶树育种攻关项目 （）
四川省农业科学院青年基金项目(2015QNJJ-014) （2015QNJJ-014）
