30份春小麦品系主要农艺性状的聚类分析  

Cluster Analysis of the Main Agronomic Traits of 30 Spring Wheat Strains

作　　者：王绘艳 史雨刚[1] 马昊翔[1] 董凡凡 孙黛珍[1] 

机构地区：[1]山西农业大学农学院,山西太谷030801

出　　处：《中国农学通报》2014年第18期60-64,共5页Chinese Agricultural Science Bulletin

基　　金：CGIAR挑战计划"Wheat breeding and selection strategies to combine and validate QTLs for WUE and heat tolerance in China"(G7010.02.01-7);山西省自然科学基金项目"小麦抗旱遗传群体的构建及相关功能标记开发"(2013011034-2);山西省人才引进与开发专项(2011)

摘　　要：为了合理利用春小麦种质资源,给小麦新品种选育提供材料,对30份供试材料的9个农艺性状进行主成分分析和聚类分析。结果表明,有效分蘖数、生物产量、单株产量、穗粒数、穗长、千粒重、株高7个农艺性状的变异系数超过10%,是影响春小麦特征特性的主要农艺性状;参试材料分为3类,第Ⅱ类材料的综合表现较优,该组材料的生物产量、单株产量较大,千粒重、穗粒数适中,是综合性状表现较为理想的育种选择材料。In order to make efficient use of spring wheat germplasm resources and prowde matenm tor wheat cuhivars breeding, 9 agronomic traits of 30 testing materials were tested for principal component analysis and cluster analysis. The results showed that 7 agronomic traits of effective number of tillers, biological yield, grain yield per plant, grain number per spike, spike length, thousand-grain weight and plant height have a high coefficient of variation over 10%, and they were the main agronomic traits that had an effect on the characteristics of spring wheat. Material could be divided into 3 categories, and the materials in the second category had excellent synthetic performance, the biological yield and grain yield per plant were large, thousand-grain weight and grain number per spike were moderate, so they were good breeding materials with ideal comprehensive characters.

关 键 词：春小麦 农艺性状 主成分分析 聚类分析 

分 类 号：S512.12[农业科学—作物学]