欢迎访问《草业学报》官方网站,今天是 分享到:

草业学报 ›› 2010, Vol. 19 ›› Issue (1): 143-150.

• 研究论文 • 上一篇    下一篇

四川盆地麦冬种质资源的形态特征变异分析

刘江,陈兴福*,杨文钰,文军,杨霞,陈佳,王凤
(四川农业大学农学院,四川 雅安 625014)   

  1. 四川农业大学农学院,四川 雅安 625014
  • 收稿日期:2009-06-10 出版日期:2010-01-25 发布日期:2010-02-20
  • 作者简介::刘江(1986-),男,四川江油人,在读硕士。E-mail:cat-liujiang@163.com
  • 基金资助:

    四川省育种攻关项目(No.2006yzggl2-12)资助

A study on morphological variation of germplasm resourcesof Ophipogon japonicus in the Sichuan basin

LIU Jiang, CHEN Xing-fu, YANG Wen-yu, WEN Jun, YANG Xia, CHEN Jia, WANG Feng   

  1. College of Agronomy, Sichuan Agricultural University, Ya’an 625014, China
  • Received:2009-06-10 Online:2010-01-25 Published:2010-02-20

摘要:

对引种的26份四川盆地野生麦冬种质资源样品的13个形态性状进行研究,结果表明,野生麦冬资源的形态特征存在广泛变异,其中,块根鲜重、干重及茎叶鲜重、干重的变异系数最大(≥58.45%),根长和叶片长的变异最小,变异系数分别为14.39%和25.89%;各性状间均呈现出较强的相关关系,且多数达到0.01显著水平;主成分分析及聚类分析结果表明,第1主成分反映麦冬植株的数量性状特征,第2主成分反映茎叶的大小特征,第3主成分反映块根的大小特征,其均是造成麦冬形态变异的主要因素,26个不同资源样品被划分为4大类,其类别间各主成分性状的大小差异明显,可根据不同需要从众多野生麦冬资源中选择特异性种质资源加以开发利用。

Abstract:

Morphological variation of germplasm resources of Ophipogon japonicus in the Sichuan basin was studied. There were extensive variations in morphology with the most significant variance in fresh root weight, dry root weight, fresh leaf weight, and dry leaf weight. The least significant variance lay in root length and leaf length. Morphological characteristics of O. japonicus have significant relationships. The results of principal component analysis and cluster analysis showed that the first principal component reflected characteristics of plant quantity, the second principal component reflected characteristics of stem leaf, and the third principal component reflected characteristics of earthnut. All of these were main factors resulting in morphological variation of O. japonicus. Cluster analysis based on the morphological characters showed that the 26 germplasm resources of O. japonicus in the Sichuan basin could be divided into four types. The different principal components among the types of O. japonicus were obvious and it is possible to select specific samples from the wide resources of wild O. japonicus according to the different needs of development and utilization.

中图分类号: