基于相关性分析和变异系数法对27份火龙果种质资源果实性状的评价

Evaluation of Fruit Traits of 27 Hylocereus Undatus Germplasm Resources Based on Correlation Analysis and Coefficient of Variation Method

为有效解决火龙果种质资源评价存在的主观性过强、不充分、不全面等问题,采用相关性分析和变异系数法,选取单果重、果实纵径、果实横径、果形指数、果皮厚度、可食率、中心果肉可溶性固形物含量、边果肉可溶性固形物含量8个性状指标,对27份火龙果种质资源进行评价。结果表明:单果重变异幅度最大,边果肉可溶性固形物含量变异幅度最小;除中心果肉可溶性固形物含量与其他7个性状相关性不显著外,各指标之间都存在显著或极显著的相关性;种质NYS2018HLG012果实性状评分最高,果实性状综合表现最好;NYS2018HLG004评分最低,果实性状综合表现最差。

In order to effectively solve the problems of over-subjectivity,inadequacy and incompleteness in the evaluation of germplasm resources of hylocereus undatus,27 germplasm resources of Hylocereus undatus were evaluated by using correlation analysis and coefficient of variation method in terms of eight character indexes,including single fruit weight,fruit longitudinal diameter,fruit transverse diameter,fruit shape index,peel thickness,edible rate,soluble solid content in central pulp and soluble solid content in side pulp.The results showed that the variation range of single fruit weight was the largest,and the variation range of soluble solid content in side pulp was the smallest.Except that the soluble solid content in the central pulp had no significant correlation with the other seven traits,there was a significant correlation between each index.Germplasm NYS2018HLG012 had the highest fruit trait score,and the comprehensive performance of fruit traits was the best.NYS2018HLG004 had the lowest and the worst comprehensive performance of fruit traits.