Abstract:

This study aims to apply grey correlation analysis for mathematical modeling of the overall quality of Fuji
apples from 9 different growing areas in China as a function of 8 quality parameters. Our results in this study suggested that
weighted relevance values were more accurate than equal-weighted relevance values in the assessment of applied quality and
that developing the reference variety and providing different quality traits with weighting values were the critical steps in
the grey correlation analysis. On the basis of our results, Fuji apples from Xinjiang, Gansu and Liaoning revealed excellent
quality, followed by those from Shaanxi, Shandong and Henan, and those from Hebei, Shanxi and Jiangsu were poor.

Key words: Fuji apple, quality evaluation, grey relevance degree