果树学报2025，Vol.42Issue(4)：765-774,10.DOI:10.13925/j.cnki.gsxb.20240649
88份软枣猕猴桃种质资源果实品质分析与综合评价
Comprehensive evaluation of fruit quality of 88 accessions of Actinidia ar-guta germplasm resources based on principal component analysis and correlation analysis
摘要
Abstract
[Objective]Correlation analysis and principal component analysis were used to comprehen-sively evaluate the quality traits of 88 accessions of Actinidia arguta resources preserved in the A.argu-ta resource nursery of the Institute of Specialty Products,Chinese Academy of Agricultural Sciences,in order to establish a fruit evaluation system and provide theoretical basis for the screening of high-quali-ty A.arguta resources.[Methods]Using 88 accessions of A.arguta fruit resources as test material,the transverse,longitudinal and lateral diameters of the fruits were measured with vernier calipers,the mass of the fruits was measured with a balance,the soluble solid content was measured with a portable digi-tal brix meter,the titratable acid content was measured with a titration method using sodium hydroxide solution,the total sugar content was measured with a sulfuric acid-anthracenone colorimetric method,and the total phenol content was measured with a Folin-phenol method.The titric acid,quinic acid,ma-lic acid,lactic acid and vitamin C content were measured using High Performance Liquid Chromatogra-phy.Correlation analysis and principal component analysis were used for comprehensive evaluation.[Results]Differences were found among the 15 quality indexes of the fruits of the different A.arguta germplasm resources,and there were correlations among the indexes.The maximum fruit transverse di-ameter(33.07 mm)was found in 111002,the maximum fruit longitudinal diameter(44.49 mm)in L060503,and the maximum fruit lateral diameter(30.07 mm)in S090602.The fruit mass ranged from 4.13 to 18.31 g.The maximum fruit mass was found in L060503.The soluble solids content varied in the range of 7.13％to 17.73％,and the highest content was found inL080308,followed by 0600203.The titratable acid content ranged from 2.76 to 15.69 g·L-1,and the highest content was found in W030101.The solid-acid ratio of W010401 fruits reached a maximum of 4.93.The total sugar content varied from 14.27 to 88.02 g·L-1,the highest content was found in T100503.The total phenol content varied from 0.41 to 1.82 mg·g-1,and the highest content was found inW110101.The highest organic ac-id content was found in 060203,and the highest vitamin C content was found inW110101.The results of correlation analysis showed that the transverse and lateral diameters of the fruits were significantly and positively correlated with the fruit mass and significantly and negatively correlated with the fruit shape index.The solid-acid ratio had a highly significant and negative correlation with the titratable ac-id content and a highly significant and positive correlation with the total sugar content.The total pheno-lic content showed highly significant and positive correlation with the citric acid content,quinic acid content,malic acid content,and vitamin C content.The 15 quality indexes of the soft date kiwifruit were simplified and extracted,and the components with eigenvalues greater than 1 were extracted,and a total of five principal components were extracted,with a cumulative contribution rate of 75.384％,and the contribution rate of the 1st principal component amounted for 20.819％,and the titratable acid,vitamin C,and citric acid positively affected the 1 st principal component,which mainly reflected the nu-tritive qualities of the fruits.The contribution of the 2nd principal component was 19.790％,which was mainly represented by the transverse and longitudinal diameters of the fruit and the quality of the single fruit,reflecting the appearance quality of the fruit.The contribution of the 3rd principal component was 15.490％.The main representatives were the soluble solids and total sugar,reflecting the sugar content of the fruit.The contribution of the 4th principal component was 11.062％,which showed a highly sig-nificant positive correlation with the fruit shape index,and the contribution of the 5th principal compo-nent was 8.222％,which showed a significant and positive correlation with the quinic acid and lactic ac-id.[Conclusion]The correlation analysis and principal component analysis screened out fruit trans-verse and longitudinal diameter,single fruit mass,soluble solid content,titrable acid content,total sugar content,total phenol content,organic acid content and vitamin C content as the core indexes for fruit quality evaluation.L060503,060203,190403,L1 10203,040103 were the top 5 quality resources of A.arguta.关键词
软枣猕猴桃/果实品质/主成分分析/相关性分析/综合评价Key words
Actinidia arguta/Fruit quality/Principal component analysis/Correlation analysis/Com-prehensive evaluation分类
农业科技引用本文复制引用
孙博位,王梦琦,秦红艳,吴曼毓,麻明杰,刘国梁,原鹏强,路文鹏..88份软枣猕猴桃种质资源果实品质分析与综合评价[J].果树学报,2025,42(4):765-774,10.基金项目
吉林省科技发展计划项目(20240303116NC) （20240303116NC）
