Comprehensive Evaluation of Mid-Early Maturing Apple Varieties Based on Grey Correlation Analysis,DTOPSIS Method,and Membership Function Method
YANG Ximeng
ZHANG Biao
LI Jiali
CUI Xiufen
CAO Yafeng
Abstract：In order to provide a reference basis for optimizing and adjusting the apple variety structure in Longdong area of Gansu Province,12 medium and early maturing apple varieties were used as test materials,and 9 fruit quality index values(single fruit weight,fruit shape index,hardness,soluble solids content,titratable acid content,solid acid ratio,a* value,b* value and L* value)were determined.The fruit quality was comprehensively evaluated by grey correlation analysis,DTOPSIS method and membership function method.The results showed that Honeycrisp had the largest single fruit weight,Fujiuhong had the largest fruit shape index,soluble solids content and solid acid ratio,while Hongfudi had the largest hardness and L* value,and Qinyang had the largest titratable acid content,Golden Century had the largest a* value,while the b* value of Red Prince was the smallest.The variation coefficient of solid acid ratio was the largest(37.62％),while that of fruit shape index was the smallest(5.75％).Due to the different calculation methods,the comprehensive evaluation results of gray correlation degree method,DTOPSIS method and membership function method were significantly different,but the top four varieties in the comprehensive ranking including Fujiuhong,Luli and Huashuo,which could be popularized and applied as medium-early maturing apple varieties with excellent comprehensive quality in Longdong area of Gansu Province.
Keywords：Mid-early maturing appleGrey relational degree methodDTOPSIS methodMembership function methodQuality evaluationFujiuhongLuliHuashuo
Publication Date：2025-10-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：10( 121-130 )