苦荞资源农艺性状因子聚类分析  

Factor and cluster analysis of Tartary Buckwheat resources

作　　者：李瑞国[1] 高冬丽[1] 柴岩[1] 胡银岗[1] 高金锋[1] 安守强[1] 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100

出　　处：《干旱地区农业研究》2007年第6期80-84,共5页Agricultural Research in the Arid Areas

基　　金：科技部科技支撑计划(2006BAD02B06);教育部西部地区特色植物种质资源数据平台建设项目;陕西省攻关(2006K01-G17-01);西北农林科技大学育种专项

摘　　要：采用因子与聚类分析方法,对搜集的53个苦荞资源的12个农艺性状进行了因子分析,筛选前6个因子(其贡献率达到80.17%)为综合指标,进一步进行系统聚类分析研究。分析结果表明,在遗传距离为7.46时,可以把苦荞资源聚成宽粒类、抗倒类、粮用类、大粒非抗倒类和以及厚壳类等5个类别。研究结果对筛选优异苦荞资源,提高苦荞产量和品质具有重要的指导意义。Factor and cluster analysis were carried out on the 12 agronomic characters of 53 Tartary Buckwheat resources from Shaa＇nxi Province. Six main factors （their cumulative contribution achieved 80.17 % ） were chosen as comprehensive indexes by the factor analysis, and then systematic cluster analysis was conducted. The result indicated that while the genetic distance reached 7.46, Tartary Buckwheat accessions can be divided into five categories of the width grain category, the lodging resistance category, the grain-used category, the big grain and non-lodging resistance category and the thick-peel category, which is of benefit to selecting excellent tartary buckwheat resources and improving yield and characters of Tartary Buckwheat.

关 键 词：苦荞 农艺性状 因子分析 聚类分析 

分 类 号：S517[农业科学—作物学]