因子综合法评价贵州不同产地蓝莓果实品质

摘要

以贵州省麻江县4个品种6个不同产地的蓝莓果实为研究对象,对感官、理化、营养等指标进行差异性分析.结果显示,不同品种和产地蓝莓果实的各项指标均存在不同程度的差异.通过主成分分析把14个指标降维为6个,反映了原变量87.3％的信息.根据6个主成分的权重计算的综合评分可知,蓝江和大升林的园蓝、粉蓝的综合评分均高于其他产地的,龙奔和碧波的巴尔德温、灿烂的综合评分均高于其他产地,蓝江和大升林的巴尔德温、灿烂的综合评分较低.聚类分析可知,16个样品被聚为4类,除龙奔巴尔德温与各产地灿烂聚为一类外,其他均按品种果实聚为一类.产地对不同品种蓝莓品质的影响存在差异,即不同品种的适应性存在差异,但与品种相比产地的影响较小.%In order to understand the effects of different regions on the processing characteristics of blueberry fruits,four varieties of blueberries from 6 different regions of Majiang County in Guizhou province were investigated and analyzed by using the principal component analysis and cluster analysis.The results showed that the indexes of blueberry varied at different degrees in different varieties and regions.According to the principal component analysis,the 14 indexes reduced to 6 indicators,which reflects 87.3％ of the original variables.According to the comprehensive score of 6 principal components weights,the scores of gardenblue and powderblue grow in Langjiang and Dashenglin are higher than in the other regions;the scores of Baldwin and Bright well grow in Longben and Biebo are higher than other regions,the scores of Baldwin and Bright well grow in Langjiang and Dashenglin is relatively low.According to the cluster analysis,16 blueberry samples were clustered into 4 classes,Baldwing in Longben and Bright well in different regions were clustered into one class,and the rest of blueberry samples were clustered into another one.In summary,the effects of regions on the quality of different varieties were different,the adaptability of different varieties was different.Compared with varieties,the cultivated place has less impact.