Using 17 lily germplasm resources as materials,the genetic diversity of 12 quality traits and 27 quantitative traits was analyzed by variance coefficient and Shannon-Wiener diversity index(H′),and the agronomic and nutritional quali-ty traits of lily germplasm resources were comprehensively evaluated by correlation analysis,principal component analysis,membership function and stepwise regression analysis.The evaluation indices were screened to provide reference for the breed-ing of new lily varieties.The results showed that 47 variation types were detected by analyzing 12 quality traits.The Shannon-Wiener diversity index ranged from 0.36 to 1.71.The coefficient of variation of 27 quantitative traits ranged from 0.06 to 0.58.And the Shannon-Wiener diversity index ranged from 1.23 to 1.97.The results showed that there were significant differences a-mong the traits and the variation types were abundant.The correlation analysis of 27 quantitative traits showed that there were significant or extremely significant correlations between phenotypic traits and quality traits.The 17 lily germplasm resources were clustered into six classes by clus-ter analysis.Through principal component analysis,seven principal components were extracted from 27 traits,which could represent 89.02%of the genetic information of lily.LZ1(Lanzhou lily),SD5(self-cultivated variety)and JD1(Lilium lancifolium Ker Gawl.)were the top three lily varieties evaluated comprehensively by subordinate function.By using stepwise linear regression method,four comprehensive evaluation indexes of lily germplasm resources were selected,which were dietary fiber content,iron content,total phospholipid content and fresh weight of bulb.
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