Comparison of fruit traits for Chinese cherry cultivars
To select new cultivars and provide the basis for exploitation and utilization of cherry resources in Taian, Shandong, the evaluation of 30 types of Prunus pseudocerasus was carried out by comparing the main fruit nutritional traits on the base of a principal component analysis and a cluster analysis which included fruit weight, pH value, total sugar, reducing sugars, total acids, vitamin C and anthocyanin contents. The results showed significant differences in nutritional traits among the fruit of different cultivars. The coefficients of variation (CV) of single fruit weight, total sugar, reducing sugar, and vitamin C were larger than those of other indices, and the CV value of pH, total acid and anthocyanin were small. The principal component analysis was performed and showed that the main component (PC1) and the second main component (PC2) have a characteristic value greater than 1, and their cumulative variance contribution was 67.72% and the first two main components reflect most of original variables. Based on the results of the principal component analysis, the 30 cherry cultivars were divided into five types, among which there were obvious differences in the nutritional traits. The comprehensive cultivar evaluation carried out through the principal component and the clustering analysis, shows that 'Red Honey,' '13-33', 'Qin-Lin' have the highest comprehensive qualities, and they can be utilized as raw materials to breed, refine, develop and use Prunus pseudocerasus species.
Jia, C., Wu, P., Sun, Y., Waterhouse, G.I.N. and Sun-Waterhouse, D. (2020). Comparison of fruit traits for Chinese cherry cultivars. Acta Hortic. 1281, 81-88
Prunus pseudocerasus, fruit nutrition traits, principal component analysis, cluster analysis