中国樱桃不同品种(优系)果实品质分析OA北大核心CSTPCD

The quality analysis of Chinese cherry fruit is beneficial to the selection and breeding of cherry varieties suitable for regional development.At the same time,it also lays a theoretical foundation for the protection of Chinese cherry germplasm resources.In this experiment,combining principal component analysis,correlation analysis and clus-ter analysis methods,30 Chinese cherry fruits of different varieties(excellent lines)under the same cultivation condi-tions were selected for external and internal quality analysis.The results showed that there were significant differences in fruit quality among different varieties of Chinese cherry under the same cultivation conditions.The scores of com-prehensive character evaluation ranked as C78,C6,C14,C34 and C32.Variety C20(Manaohong)has excellent cultiva-tion performance in some provinces in China,ranked 11th in this comprehensive evaluation.The 9 fruits intrinsic quality indexes had varying degrees of variation,with variation coefficients ranged from 11.27%to 36.32%.There was a correla-tion coefficient between the quality indicators,among which 12 were significantly correlated at 0.01 level and 17 were significantly correlated at 0.05 level.Principal component analysis of 13 quality traits showed that the cumulative contri-bution rate of the first 7 principal components was 88.196%,which could reflect the basic characteristics of quantitative traits.Cluster analysis with Euclidean method showed that 30 different Chinese cherry varieties(excellent lines)were pre-liminarily divided into 4 categories.The fruit quality analysis results obtained in this experiment could be used to explore the genetic variation map of cherry resources in China,and also be used as a reference for new varieties breeding.