Fruit quality evaluation of Pinot Noir grapes from different production areas in the Hexi Corridor
[Objective]A comprehensive Pinot Noir grape quality assessment model has been developed to determine the key quality indicators of Pinot Noir wine grapes.[Method]A total of 5 samples of Pinot Noir grapes were collected from 5 representative orchards in Liangzhou District of Wuwei City,Minqin County of Wuwei City,Jiayuguan City and Zhangye City in 4 production areas of the Hexi Corridor.Deter-mine the core quality indicators of Pinot Noir grapes by principal component analysis and cluster analysis,determine the weights of the indicators by hierarchical analysis,and establish a comprehensive evaluation model of the quality of Pinot Noir grapes.[Result]There were obvious differences in basic quality and the hierarchical analysis method was used to construct a comprehensive quality evaluation formula for Pinot Noir grapes.The evaluation formula was as follows Y(comprehensive score)=0.408 3×standardized value of soluble solids content+0.176 3×standardized value of aroma substance type+0.118 8×stan-dardized value of quinic acid content +0.296 7×standardized value of titratable acid content.[Conclusion]The comprehensive analysis concluded that the overall quality of Pinot Noir grapes from Qingyuan Town,Liangzhou District,Wuwei City was better,while Pinot Noir from Shoucheng Town,Minqin County,Wu-wei City had a higher accumulation of aroma substances.
Hexi corridorPinot Noirfruit qualityevaluation model
NETL
NSTL
万方数据
维普
