新疆农业大学学报2025，Vol.48Issue(5)：384-392,9.DOI:10.20088/j.cnki.jxau.2025.05.004
32份梨种质资源果实品质分析与综合评价
Analysis and Comprehensive Evaluation of Fruit Quality in 32 Pear Germplasm Resources
摘要
Abstract
The fruit quality of 32 pear germplasm resources from Korla City was comprehensively evaluated,with the aim of providing high-quality germplasm resources for new variety breeding and enriching the pear culti-var structure in Xinjiang.Thirty-two pear germplasm resources were used as the study subjects(with Korla fra-grant pear as the control).During the fruit maturity period,their external phenotypes were analyzed and identi-fied,and their fruit quality was measured.Methods such as single factor analysis of variance,coefficient of varia-tion analysis,correlation analysis,and principal component comprehensive evaluation were employed.A compre-hensive evaluation model was constructed,and the comprehensive scores of fruit quality were calculated and ranked.The coefficients of variation for the 18 quantitative traits of fruit quality ranged from 3.14%to 74.42%.The stone cell content was found to have the greatest variation(74.42%),while the water content exhibited the smallest variation(3.14%).Correlations of varying degrees were observed among the fruit quality indicators of the 32 pear germplasm resources.Five principal components were extracted through principal component analy-sis,with a cumulative contribution rate of 74.59%.The fruit quality of different germplasms was evaluated using principal component analysis,and germplasms 14-74,12-79,and 14-54 were identified as having comprehensive scores higher than that of Korla fragrant pear.The 32 pear germplasm resources exhibited rich phenotypic diver-sity,germplasms 14-74,12-79,and 14-54 were identified as the top performers in comprehensive fruit quality and are hereby designated as premium genetic resources for extended propagation.关键词
梨/种质资源/果实性状/果实品质/主成分分析Key words
pear/germplasm resources/fruit character/fruit quality/principal component analysis分类
农业科技引用本文复制引用
张淑琴,张峰,刘永杰,温玥,李佳,张俊娇,孙漫漫,田嘉,王磊,陈晨,孙天雨,王春峰..32份梨种质资源果实品质分析与综合评价[J].新疆农业大学学报,2025,48(5):384-392,9.基金项目
新疆维吾尔自治区重大科技专项(2024A02006-1) （2024A02006-1）
新疆维吾尔自治区天山创新团队(2023D14015) （2023D14015）
第二批天山英才培养计划青年托举人才项目(2023TSYCQNTJ0004) （2023TSYCQNTJ0004）
