黑小麦主要农艺性状的相关性和主成分分析

Principal Component Analysis on Main Agronomic Traits of Black Wheat Germplasm

[目的]对新疆14个黑小麦品种资源的8个主要农艺性状进行了相关性分析和主成分分析,为选择具有优良性状的黑小麦品种提供依据。[方法]通过一年多点试验,记载黑小麦主要农艺性状,用以评价黑小麦的综合性指标。[结果]在单株粒重性状上变异丰富,株高、千粒重和结实小穗数等性状在供试材料中差异不大;典型相关分析中有5对性状达极显著相关;累积方差贡献率达到89.60%。[结论]根据各品种主成分并对其进行综合评价,选择综合经性状优良的品种(系)2个。

[ Objective ] The aim is to provide a basis for selecting excellent varieties of black wheat varieties, correlation analysis and principle component analysis was conducted on 8 agronomic characters of 14 black wheat variesties from Xinjiang. [ Method] According to the agronomic characters, comprehensive indicator of black wheat was evaluated by a year more test. [ Result] Single grain weight had abundant variation, plant height grain weight and spikelet number of shape in the tested materials had little difference. Canonical correlation analysis of 5 pairs of characters were significantly correlation. The cumulative variance contribution rate reached 89.60%. [ Conclusion] According to the comprehensive analysis and evaluation of all varleties＇principal component, two excellent varieties （lines） were selected.