为探究河西走廊地区所产不同鲜食葡萄品种果实质地品质的差异性，通过质地多面分析法(TPA)，对该地区10种鲜食葡萄成熟果实的硬度、脆度、黏附性等质地参数进行测定，并采用相关性分析、主成分分析和聚类分析等方法综合评价果实品质。结果表明，‘红地球’和‘无核白’果实的果肉硬度、咀嚼性、胶着性等指标均显著高于其他品种，而‘贵妃玫瑰’‘蜜光’及‘夏黑’的果肉咀嚼性、胶着性和内聚性均明显低于其他品种；相关性分析表明，硬度与脆度、弹性、咀嚼性、胶着性及回复性呈极显著正相关(P＜0.01）；主成分分析显示，‘红地球’‘无核白’果实的得分较高，‘京玉’‘蜜光’较低；聚类分析将10个鲜食葡萄品种分为 3 个类群。综合表明，‘红地球’与‘无核白’果实质构品质优异，适合长贮及运输，而‘贵妃玫瑰’‘蜜光’和‘京玉’果实质构品质较差，适于本地应季销售。
To explore the differences in the texture quality of fresh table grapes produced in the Hexi Corridor region, the texture parameters of 10 fresh table grape varieties, including firmness, crispness, adhesiveness, etc., were measured by texture profile analysis (TPA). Correlation analysis, principal component analysis and cluster analysis were used for comprehensive evaluation of the fruit quality. The results showed that the flesh firmness, chewiness and adhesiveness of Vitis vinifera 'Red Globe' and 'Thompson Seedless' were significantly higher than those of other varieties, while the chewiness, adhesiveness and cohesiveness of 'Guifei Meigui', 'Miguang' and 'Summer Black' were significantly lower than those of other varieties. Correlation analysis indicated that firmness was highly significantly positively correlated with crispness, elasticity, chewiness, adhesiveness and resilience (P＜0.01). Principal component analysis showed that 'Red Globe' and 'Thompson Seedless' had higher scores, while 'Jingyu' and 'Miguang' had lower scores. Cluster analysis divided the 10 fresh table grape varieties into 3 groups at the Euclidean distance of 8.0. In conclusion, 'Red Globe' and 'Thompson Seedless' had excellent texture quality, suitable for long-term storage and transportation, while 'Guifei Meigui', 'Miguang' and 'Jingyu' had poor texture quality and were suitable for local seasonal sales.
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