草地学报

›› 2013, Vol. 21 ›› Issue (3): 626-630.DOI: 10.11733/j.issn.1007-0435.2013.03.033

• 研究简报 • 上一篇    

山西不同居群白羊草主要农艺性状评价

武路广, 霍梅俊, 董宽虎   

  1. 山西农业大学动物科技学院, 山西 太谷 030801
  • 收稿日期:2012-11-19 修回日期:2013-03-08 出版日期:2013-06-15 发布日期:2013-06-05
  • 通讯作者: 董宽虎
  • 作者简介:武路广(1988- ),男,山西晋城人,硕士研究生,研究方向为牧草抗逆性研究,E-mail:wluguang@yahoo.com.cn
  • 基金资助:
    山西省科技攻关项目(20120311011-1);山西省科技基础条件平台建设项目(2012091004-0101)资助

Evaluation of Main Agronomic Traits from the Different Populations of Bothriochloa ischaemum (L.) Keng in Shanxi

WU Lu-guang, HUO Mei-jun, DONG Kuan-hu   

  1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China
  • Received:2012-11-19 Revised:2013-03-08 Online:2013-06-15 Published:2013-06-05

PDF

摘要： 为筛选和合理利用白羊草(Bothriochloa ischaemum (L.) Keng)种质资源提供理论依据,利用主成分分析和聚类分析对采自山西省不同地区的10个白羊草居群的13个主要农艺性状进行分析和评价。结果表明:白羊草各居群间除小穗数外其他农艺性状差异均达极显著水平(P<0.01)。主成分分析得到累计贡献率为86.927%的4个主成分,根据主成分分析结果对不同居群白羊草进行聚类分析,共得到4个类群,其中第1类群即临汾、芮城和太谷这3个白羊草居群综合表现最好。

关键词: 白羊草, 农艺性状, 主成分分析, 聚类分析

Abstract: In order to provide theoretical basis for reasonably selecting and utilizing the genetic resources of Bothriochloa ischaemum (L.) Keng, thirteen agronomic traits from ten populations of B. ischaemum were evaluated by principal component and cluster analysis. Results showed that agronomic traits except for spikelets were significantly different among populations (P<0.01). The cumulative contribution rate of four extracted principal component factors was 86.927% in principal component analysis. Different populations of B. ischaemum were clustered into 4 groups based on the results of principal component analysis. The general performance of group 1 including the populations of Linfen, Ruicheng and Taigu was the best.

Key words: Bothriochloa ischaemum (L.) Keng, Agronomic traits, Principal component analysis, Cluster analysis

中图分类号: