Diversity analysis of morphological traits of savoy germplasm resources in Anhui Province
Seventeen morphological characters of 48 savoy germplasms in Anhui Province were investigated and analyzed.The results showed that the morphological diversity was high among the savoy germplasms.The variation coefficients were from 8.67% to 55.33%.The principal component analysis showed that the 17 characters could be integrated into 6 principal components.The first and the second principal components represented 30.998 2% and 29.208 2% of variance,respectively.The cumulative contribution rate of eight factors including petiole length,spread width,plant type,leaf length,lateral lobe color,leaf shrinkage,leaf’s interior color and their cumulative contribuction rate was up to 71.821 5%,which could reflect the main information of morphological characters of savoy.Based on the morphological data,the 48 savoy germplasms were clustered into 3 groups,with 14 varieties belonging to the first cluster,25 varieties belonging to the second cluster,and 9 varieties belonging to the third cluster.The varieties from different areas were distributed in the three groups.This study will provide evidence for germplasm enhancement and heterosis utilization of savoy by taking advantage of germplasm of Anhui Province.