30份春小麦品系主要农艺性状的聚类分析

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。

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

For the rational use of variety resources in spring wheat breeding, 9 agronomic traits of 30 testing materials were tested in principal component analysis and cluster analysis,results show that 7 agronomic traits of effective number of tillers, biological yield , grain yield, grain number per spike, spike length, Thousand - grain weight, and plant height have a high coefficient of variation, over 10%, and they are the main agronomic traits that have an effect on the characteristics of spring wheat;Material can be divided into 3 categories, 1th category materials has excellent synthetic performance, the biological yield and thousand-grain weight were large, grain yield was moderate, and grain number per spike was little, so they are good parent materials with ideal comprehensive characters.