Evaluation of different tomato fruit quality based on principal compo-nent analysis and membership function analysis
GAO Chenpeng
YANG Yanning
CHENG Bo
LI Fei
DIAO Ming
CUI Jinxia
Abstract：To select high-quality tomato varieties suitable for cultivation in solar greenhouse in the Andi region of Xinji-ang from six tomato varieties,this study conducted a comprehensive evaluation of 18 fruit quality indicators of the tested varieties using principal component analysis(PCA)and membership function analysis.First,the raw data was standard-ized,and principal component analysis was employed for dimensionality reduction and correlation analysis.Simultaneously,variance analysis was performed on the fruit quality-realted data to copare differences among varieties.Subsequently,the membership function valuses for each indicator were calculated using membership function analysis,and a comprehen-sive evaluation model was constructed based on the results of the principal component analysis.The comprehensive scores of each variety were then calculated and ranked according to the model.The experimental results showed that sig-nificant differences among varieties in terms of vitamin C content,titratable acidity content,soluble sugar content,soluble solids content,lycopene content,fruit mass,hardness,acid-sugar ratio.After integrating all the indicators,the comprehen-sive scores of the varieties were ranked as follows:2T1068,TSH,Provence,2T719,Tongnianweidao,DRC564.Among them,the varieties 2T1068 and TSH exhibited the best overall performance and were identified as high-quality varieties suitable for local cultivation.These research results provide a scientific basis for tomato growers in variety selection,help-ing to improve fruit quality and better meet consumer demands.
Keywords：TomatoFruit qualityPrincipal component analysisMembership function analysisComprehensive evaluation
Publication Date：2026-03-05
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：7( 113-119 )