【摘要】 试验采用 17个品种的资源材料 ,对农艺性状进行研究。根据主成分分析 ,从 10个特征根中选出前 5个较大的特征根进行评价 ;通过聚类分析将全部供试材料分成 4个类群 ,各类群间存在着性状的差异。亲本选配应在类群间根据主成分的互补进行。更多还原

【Abstract】 Agronomic traits of 17 Maodou varieties in Heilongjiang Province were investigated in this trail.According to principle component analysis 5 eigenvalues were selected from 10 to evaluate the agronomic traits.By clustering analysis all varieties were divided into 4 clusters,which were different in agronomic traits each other.Parents of crosses should be selected from different clusters depending on complementarities of principle component.更多还原