基于主成分分析的“大久保桃”果实品质综合评价

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关键词大久保桃；主成分分析；果实品质；综合评价中图分类号S662.1文献标识码A文章编号 0517-6611（2025）16-0028-03doi： 10.3969/j.issn.0517-6611.2025.16.006

AbstractTocompartfritualityierencesof“Oubopeach”frdiferentorsandreetheeyiicatorsofifreto "Okubo peach”germplasmresourceswereusedasmaterils.Tenquality indicatorsincludingsinglefruitqaityandanthocyaninswerdeter mined.Thescoreswerecalulatedandthepeachorchards wererankedbyacomprehensiveevaluationmethodcombiningprincipalcomponent analysisandfactoranalysis.Theresultsshowedthattefruitqaltyof“Okubopeach”indiferentproducingareaswasdiferent，andthe range of variation coefficient was wide，ranging from 2.00% to 21.21% . The coefcient of variation of titrable acid content is the largest，reaching 21.21% .Three principalcomponentswereextracted byprincipal componentanalysis，andthecumulativevariancecontributionrate reached 83.311% .Furthermore，solid-acidratio，sugar-acidratioandfruitqualitywere usedasthecore evaluation indexesandacomprehensive evaluation model （ Y=0.417 3F1+0.294 9F2+0.120 9F3 ）was established. The comprehensive quality of T9，T8，T1O，T13 and T1 was excelent，thequalityofpeachfruitiT7，2，11，T3andT5was medm，andhequaltyofpeachfruitinT，T4andTwasre researchresultsproidedentihoeticalgdaefortiaiomanagentdegioalslctioofeelntgeplaso of“ Okubo peach”.

Key WordsOkubo peach;Principal component analysis ;Fruit quality;Comprehensive evaluation

桃属于蔷薇科（Rosaceae）李属（Prunus）植物[，原产于我国西部地区，位列第四大水果种类[2]。（剩余6562字）