滇重楼表型性状变异、主成分、相关及通径分析  

Phenotypic Trait Variation,Principal Component,Correlation and Path Analysis of Paris polyphylla var. yunnanensis

作　　者：李戈[1] 王艳芳[1] 唐玲[1] 杨春勇[1] 李荣英[1] 马小军[1] 

机构地区：[1]中国医学科学院/北京协和医学院药用植物研究所云南分所,西双版纳州傣药南药重点试验室,云南景洪666100

出　　处：《中药材》2015年第7期1339-1342,共4页Journal of Chinese Medicinal Materials

基　　金：中国医学科学院药用植物研究所云南分所所长基金(YZYN-13-05);中国医学科学院药用植物研究所创新团队研究计划(121306)

摘　　要：目的：调查滇重楼居群表型性状的变异范围,寻找与产量密切相关的表型性状,为今后滇重楼品种选育提供参考。方法：以云南省西双版纳地区经3年引种栽培的野生滇重楼居群为研究对象,随机标记滇重楼植株,观测其表型性状,并进行表型性状变异、主成分、相关性、方差和通径分析。结果：该滇重楼居群11个表型性状变异较大,主要分布在产量、长势、遗传特征几个方面。不同生长年限（4-10年）滇重楼植株地上部分性状包括茎高、茎粗、花茎高、花茎粗、叶数、叶长、叶宽无显著性差异（P〉0.05）,地下部分性状包括根重、根长、根粗随植株生长年限增加而增加,差异显著（P〈0.05）。滇重楼各主要性状对根重的作用效应依次为：根粗（0.2550）〉根年限（0.1183）〉根长（0.0202）〉茎粗（0.0081）〉茎高（0.0044）〉叶数（0.0025）〉叶长（0.0018）〉叶宽（0.0004）〉花茎高（0.0003）〉花茎粗（0.0001）。结论：该滇重楼居群表形性状在产量、长势、遗传特征几个方面变异丰富,其中地上部分表型性状差异与生长年限无关,生长年限影响的主要是地下部分性状。在滇重楼不同根茎类型挑选时,根粗可以作为首选性状,在不方便获得根茎性状信息的情况下,茎粗可以作为首选性状。Objective ：To investigate the phenotypic trait variation range of Paris polyphylla var. yunnanensis, and to look for pheno- typic traits closely related with yield, in order to provide reference for its breeding in the future. Methods ： Wild plants of Paris polyphylla vat. yunnanensis populations cultivated for three years in Xishuangbanna, Yunnan Province were chosen. The plants of Paris polyphylla var. yunnanensis were randomly labelled, its phenotypic traits were observed and analyzed by variation, principal component, correlation, variance and path analysis. Results ： Eleven phenotypic traits variation of the populations of Paris polyphylla var. yunnanensis were great, mainly distributed in yield, growth and genetic characteristics. Phenotypic trait of different growth years （4 - 10 years ） including stem height, stem diameter,flower stem height,flower stem diameter, leaf number, leaf length and leaf width had no significant difference （P 〉 0. 05 ）. The underground phenotypie traits including root weight,root length and root diameter increased significant（ P 〈 0. 05 ） with plant growth years. Effect of the other phenotypic traits on root weight was as follows ： root diameter （ 0. 2550 ） 〉 root growth years （0. 1183） 〉 root length（0. 0202） 〉 stem diameter（0. 0081 ） 〉 stem height （0. 0044） 〉 leaf number（0. 0025 ） 〉 leaf length（0. 0018 ） 〉 leaf width （0. 0004 ） 〉 flower stem height （0. 0003 ） 〉 flower stem diameter （0. 0001 ）. Conclusion ： The phenotypic traits on yield, growth and genetic characteristics have rich variations, and the phenotypic traits on the ground have no relationship with plant growth years,the plant growth years mainly affect the underground phenotypic traits. When choosing different root types, root diameter can be used as the preferred character, stem diameter as the second preferred traits when the root traits information not be easily obtained.

关 键 词：滇重楼 表型性状 主成分分析 相关分析 通径分析 

分 类 号：R282.2[医药卫生—中药学]