A Comprehensive Evaluation of 45 Pomegranate (<i>Punica Granatum L</i>.) Cultivars Based on Principal Component Analysis and Cluster Analysis

China has abundant germplasm resources of pomegranate. Previous studies have analyzed the fruit quality cultivated and wild pomegranates collected from different regions China. In this study, 45 pomegranate cultivars Yicheng, Shandong province, were used as materials. Principal component cluster analysis was performed based on 18 traits. There significant differences in traits among cultivars. Nine principal components (PCs) extracted by analysis, cumulative variance contribution rate 84.9%. PC1 PC2 represented 20.9%, 14.3% total respectively. The former highly positively contributed flavonoid phenolic content juice, pericarp (FCJ, PCJ, FCP PCP), Vitamin C while latter correlated with proanthocyanidins seeds (PAS FCS) titratable acid content. According to comprehensive scores, Yushiliu, Gangliu, Mantianhongsuan, Tianlvzi, Xinjianghongpi, Huaiyuanerbenzi, Xiaoqingpi, Damaya, Yichengheshunzhuangwuci, Taishanhong ranked top ten. clustered into four categories according indicators, each group had unique characteristics. Most III higher PCJ pericarp, most members Ⅳ anthocyanin contents, PCP, which suggested that two groups rich functional substances can be for further processing. Therefore, results would provide a method comprehensively evaluate reference agricultural cultivation, industrial utilization breeding.