关键词: 豆科牧草, 灰关联分析, 隶属函数分析, 聚类分析, 主成分分析, 综合评价

Abstract: Eight agricultural characteristics of 15 germplasm accessions of legume pasture that introduced from Australia were evaluated comprehensively by using gray relation analysis,membership function analysis,cluster analysis and principal component analysis.The applications of the four statistical methods on comprehensive evaluation for legume germplasms were discussed.The evaluation results showed that stylo Nina,stylo Temprano,stylo 540 and stylo 541 were the better varieties,and the results of four statistical methods for Legume germplasm were in substantial agreement,so that the four statistical methods can be used for comprehensive evaluation of legume germplasm independently.

Key words: legume pasture, gray relation analysis, membership function analysis, cluster analysis, principal component analysis, comprehensive evaluation