Quality diversity evaluation of different persimmon fruits
In order to evaluate the quality of persimmon fruit more systematically,a total of 32 quality indexes of appearance,inner and sensory quality were systematically studied using of 9 varieties of representative non-astringent persimmon and 6 varieties of representative astringent persimmon.The fruit quality of different persimmon germplasm resources was compared and evaluated by diversity analysis,correlation analysis,systematic clustering and principal component analysis.The results showed that:The variation coefficients of 32 quality indexes of 15 accessions were 12.80％-180.35％,the variation coefficients of a*,total polyphenols,insoluble tannins,glucose,sucrose,pectin and texture quality indexes were all above 50％.The 15 accessions could be divided into 2 groups by systematic cluster analysis,among which,9 persimmon germplasm resources were clustered into one group,6 astringent persimmon germplasm resources were clustered into one group,the results showed that there was significant difference between sweet and astringent persimmon fruit quality(P＜0.01).A total of 7 main components were extracted by principal component analysis(PCA),including insoluble tannin,soluble pectin,glucose,total polyphenols,fructose,peel toughness and texture.The cumulative contribution of variance was 91.92％can reflect most of the information of 32 indicators.This study can provide a theoretical basis for developing and utilizing persimmon fruit resources.
国家科技期刊平台
NSTL
万方数据
