摘要
以国家苹果种质资源圃中的53个中早熟品种苹果为材料,分析其品质性状及分布,利用主成分分析建立综合评价模型进行品质综合评价。结果表明,品质性状间存在不同程度的差异,其中果皮颜色a*值变异最大,变异系数为-297.38%,水分含量品种间变异最小,变异系数为1.64%;主成分分析提取了前6个主成分,累积方差贡献率达到75.147%,主成分综合评价筛选出老笃、克鲁斯、黄魁等优选品种。
53 apple germplasm resources were studied in this research. Analysed the quality traits and distribution. Using principal component analysis to set up a comprehensive evaluation model for quality comprehensive evaluation. The results showed that different degree of difference exist in these traits, redness（a＊） has the biggest variation and coefficient of variation is -297.38%, water content has the smallest variation and coefficient of variation is 1.64%. 6 main composition were extracted by principal component analysis, accumulative variance contribution is 75.147%, comprehensive evaluation of apple quality showed that Lao Du, Cruise and Huang Kui are high quality varieties.
出处
《食品科技》
CAS
北大核心
2012年第1期54-57,共4页
Food Science and Technology
基金
2009年公益性行业(农业)科研专项(200903043)
关键词
苹果
品质性状
主成分分析
综合评价
apple
quality traits
principal component analysis
comprehensive evaluation
