关键词: 新疆骏枣, 果实品质, 表征指标, 四分位差分析, 主成分分析, 聚类分析

Abstract: To provide theoretical basis for further deepening the utilization of Jun jujube resources, the preliminary verification of nutrient characteristics and representative characterization indexes of Jun jujube in Xinjiang was performed. In the present study, using Shanxi Jiaocheng Jun jujube as control, 18 nutrition quality indicators of Jun jujube from 11 counties in Xinjiang were analyzed. The nutritional quality characteristics and representative indicators of Xinjiang Jun jujube were analyzed by the four point difference analysis, correlation analysis, principal component analysis and cluster analysis. The results showed that the overall distribution of 18 quality indexes of Xinjiang Jun jujube were higher than that of Jiaocheng Jun jujube; among the 18 quality indexes, the values of reducing sugar, fructose, glucose, soluble solid, protein, Zn, Cu, Fe, P, Ca, total sugar and flavonoids were relatively high in the corresponding principal components, which could better reflect the overall variation of the data. The 11 counties could be divided into 4 groups, and each had its own characteristics. The quality indexes of sugar, fructose, glucose, soluble solid, protein, Zn, Cu, Fe, P, Ca, total sugar, flavonoids could be used as representative quality characterization indexes of Xinjiang Jun jujube.

Key words: Xinjiang Jun jujube, fruit quality, characterization index, four point difference analysis, principal component analysis, cluster analysis