CAJ | 학술논문

为了确定库尔勒香梨杂交品种(系)果实品质主要评价指标,并对其进行综合评价,分析测定了新梨1号、新梨6号、新梨7号等10个香梨杂交品种(系)的单果重、果形指数、果肉硬度、含水量、可溶性固形物、可溶性糖、可滴定酸、维生素C、石细胞、糖酸比等10个品质指标,并采用主成分分析和聚类分析法对各品质指标进行分析,建立了果实品质综合评价模型.结果表明,在库尔勒香梨杂交品种(系)多个果实品质指标之间存在着相对独立性和密切相关性.经主成分分析,前5个主成分的累计贡献率已达到89．859％；通过聚类分析,10个主要果实品质指标聚成了6类,最终将品质指标简化为单果重、果形指数、果肉硬度、糖酸比、维生素C、可滴定酸6个具有代表性的指标,可以反映香梨杂交品种(系)果实品质的绝大部分信息.通过果实品质综合评价模型得出各品种(系)的综合得分并排序,结果为：84-4-170、新梨1号、82-27-20综合果实品质较优,新梨8号、新梨9号、新梨6号、新梨7号综合果实品质中等,84-1-91、84-5-58、84-4-112综合果实品质较差.
위료학정고이륵향리잡교품충(계)과실품질주요평개지표,병대기진행종합평개,분석측정료신리1호、신리6호、신리7호등10개향리잡교품충(계)적단과중、과형지수、과육경도、함수량、가용성고형물、가용성당、가적정산、유생소C、석세포、당산비등10개품질지표,병채용주성분분석화취류분석법대각품질지표진행분석,건립료과실품질종합평개모형.결과표명,재고이륵향리잡교품충(계)다개과실품질지표지간존재착상대독립성화밀절상관성.경주성분분석,전5개주성분적루계공헌솔이체도89．859％；통과취류분석,10개주요과실품질지표취성료6류,최종장품질지표간화위단과중、과형지수、과육경도、당산비、유생소C、가적정산6개구유대표성적지표,가이반영향리잡교품충(계)과실품질적절대부분신식.통과과실품질종합평개모형득출각품충(계)적종합득분병배서,결과위：84-4-170、신리1호、82-27-20종합과실품질교우,신리8호、신리9호、신리6호、신리7호종합과실품질중등,84-1-91、84-5-58、84-4-112종합과실품질교차.
In order to determine the main evaluation factors of Korla fragrant pear hybrid varieties,and comprehensive evaluation on it,ten quality indexes were measured of ten varieties including Xinli No.1 , Xinli No.6,Xinli No.7 and so on.The indexes included fruit weight,fruit shape index,flesh firmness,water content,soluble solids content,soluble sugar content,titratable acidity,Vitamin C content,stone cell con-tent,SS/TA.The data were analyzed by principal component analysis and systematic cluster analysis.Fruit quality comprehensive evaluation model is established.The results showed that there was either relative in-dependence or close correlations among the evaluation indexes of fruit quality.Principal components analy-sis showed that the first five principal components variance accumulation contribution rate amounted to 89.859%.According to their cluster analysis,the tested 10 indexes were divided into 6 types,which were fi-nally simplified into fruit weight,fruit shape index,flesh firmness,SS/TA,Vitamin C,titratable acidity, which could reflect the most information of fruit quality of hybrid varieties of Korla fragrant pea.Accord-ing to the fruit quality comprehensive evaluation model ,each varieties ’scores show that:the comprehensive fruit quality of 84-4-170,Xinli No.1,82-27-20 was better,the one of Xinli No.8,Xinli No.9,Xinli No.6,Xin-li No.7 was medium,and the one of 84-1-91,84-5-58,84-4-112 was poor.