29个大丽花品种灰色关联度分析

Grey Correlation Degree Analysis of 29 Varieties of Dahlia pinnate Cav.

[目的]快速选育出大丽花的优良品种,建立大丽花筛选的综合评价体系。[方法]以29个大丽花品种为试验材料,选取11个数量性状作为评价因子,采用灰色关联度分析法建立评价体系,综合评价大丽花品种的优劣。[结果]筛选出2个大丽花品种英引-535和紫条纹,其株形饱满、花色鲜艳、综合性状良好,等权关联度分别为0.847 4、0.844 9,加权关联度分别为0.864 9、0.854 8。[结论]灰色关联度分析法为大丽花新品种的选育提供了理论基础。

[Objective]To rapidly select excellent Dahlia pinnate Cav.varieties,and to establish a comprehensive evaluation system for the screening of D.pinnate.[Method]With 29 varieties of D.pinnate as experimental materials,we selected 11 quantitative traits as evaluation factors,and established an evaluation system based on the grey correlation analysis method to comprehensively evaluate the advantages and disadvantages of D.pinnate varieties.[Result]Two varieties of Yingyin-535 and Zitiaowen were screened,which had more full-bodied,brightly colored,and good comprehensive characters.Equivalence correlations of the two varieties were 0.8474,0.8449,and their weighted relational grade of the two varieties were 0.8649 and 0.8548,respectively.[Conclusion]The grey correlation analysis method provided a theoretical basis for the selection and breeding of new varieties of D.pinnate.