紫花苜蓿新品种主要农艺性状与产量灰色关联度分析

Alfalfa varieties of main agronomic traits and yield grey correlation analysis

试验对14个品种紫花苜蓿(Medicago sativa L.)的10个农艺性状,利用灰色关联度分析法进行综合评价。结果显示:各项指标与产量的排序为,株高>叶片长>主茎长>均节长度>分枝数>叶面积>茎节数>叶片宽>茎粗。利用权重决策法对紫花苜蓿主要指标进行综合分析,表明权重较高的3个指标是株高、叶片宽、茎粗。研究表明,加权关联度数值大小综合评价,阿尔冈金、甘农5号可作为示范推广品种。

Ten agronomic traits of 14 varieties of alfalfa(Medicago sativa L.)were comprehensively evaluated by grey correlation analysis.The results showed that the order of each index and yield was as follows:Plant height>leaf length>main stem length>average node length>branch number>leaf area>stem node number>leaf width>stem diameter.The weight decision method was used to comprehensively analyze the main indexes of alfalfa,the results showed that the three indexes with higher weight were plant height,leaf width and stem diameter.The experiment indicates that the comprehensive evaluation of weighted correlation degree,Algonjin and Gannong 5 can be used as demonstration varieties.