制干枣种质资源果实品质综合评价

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Abstract：197 dry jujube germplasm accessions were applied in this study，a evaluation system was developedthroughofphysical，appearance，and intrinsicquality traits，with22qualitytraitsinitiallyconsidered. Keyindiceswere selected to construct the evaluation framework，and acombined approach of hierarchical analysisand gray correlationanalysis were deployed to thoroughly analyzeand comprehensively evaluate the fruit quality of dry jujube germplasm. Superior germplasm was identified based on weight and weighted correlation values.Theresults revealedsignificant variabilityinphysical，appearance，and internal quality traits， with coefficients of variation ranging from 5.687% to 68.430% .Various correlations were observed among the quality traits.Asignificant negative correlation was observed between the adhesionoffresh jujube fruits and the chewiness of dried jujube fruits.To systematically evaluate the fruit quality traits of dried jujube germplasm，a comprehensive evaluation model was constructed using the Analytic Hierarchy Process （AHP）.Combining the resultsofcorrelationanalysis，seven key traits included dried jujubechewiness，dried jujubefruit weight，dried jujube haedness，dried jujube peel flatrange，dried jujube fruit color，dried jujube total soluble sugarcontent and dried jujube soluble solidcontent were contentidentified as primary indicators for assessing dried jujube fruit quality.The qualityof197 sampleswas systematically evaluated，leading to the identificationof15 accessions with outstanding comprehensive quality for dried jujube production.

Keywords：Chinese jujube；germplasm resources;dried germplasm; hierarchy-grey association analysis： comprehensive evaluation

枣（Ziziphus jujubaMill.）为鼠李科（Rhamnaceae）枣属（ZiziphusMill.）植物，是我国特色果树和重要生态经济林树种，目前为我国第一大干果和第七大果树，生产规模占全球 98% 以上[1]。（剩余13184字）