山东引种蓝莓品质指标综合评价

为探究山东引种蓝莓的综合品质，对13种蓝莓进行形态指标、理化指标、质构指标测定，运用相关性分析和主成分分析进行综合评价，并结合聚类分析得出排名。结果表明:不同品种间各项指标存在差异，大粒蓝金综合品质最优。该果外形圆润、色泽明亮，总糖含量17.07 g/kg，维生素C含量1.35 mg/g，SOD含量1156.11 U/g，各项质构指标优异，口感较佳。从17项指标中利用主成分分析提取出前5个主成分，累计方差贡献率为83.260%。将主成分分析数据建立蓝莓综合评价数学模型，得分表明:大粒蓝金、布莱登、赫伯特、日出等综合品质较高。聚类分析在欧式距离为5时，将蓝莓分为了五大类，并结合感官评价分析结果发现，大粒蓝金为最优品种。蓝莓酸甜可口、营养价值丰富，具有较高的经济价值和广阔的开发前景。对山东引种蓝莓进行综合品质评价，为山东地区蓝莓综合利用和发展精深加工提供理论依据。

Comprehensive Evaluation of Quality Index of Introduced Blueberry in Shandong Province

In order to explore the comprehensive quality of introduced blueberries in Shandong Province, the morphological index, physical and chemical index and texture index of 13 kinds of blueberries were determined, and the comprehensive evaluation was made by correlation analysis and principal component analysis, and the rankings were obtained by cluster analysis. The results showed that there were differences among different varieties, and the comprehensive quality of big blue gold was the best. The fruit was round in shape and bright in color, with total sugar content of 17.07 g/kg, vitaminC content of 1.35 mg/g, SOD content of 1156.11 U/g, excellent texture indexes and good taste. The first 5 principal components were extracted from 17 indexes by principal component analysis, and the cumulative variance contribution rate was 83.260%. A mathematical model for comprehensive evaluation of blueberries was established based on principal component analysis data. The scores showed that the comprehensive qualities of big blue gold, Bladen, Herbert and Sunrise were higher. When the European distance was 5, blueberries were divided into five categories by cluster analysis. Combined with sensory evaluation results, it was found that big blue gold was the best variety. Blueberries were sweet and sour, rich in nutritional value, and had high economic value and broad development prospects. The comprehensive quality evaluation of introduced blueberries in Shandong Province provided theoretical basis for comprehensive utilization and deep processing of blueberries in Shandong region.