| 摘要 |
PURPOSE: A method and a color chart which determines maturity of Fuji apple are provided to determine the maturity based on a real picture according to the each step of the apple. CONSTITUTION: A maturity of Fuji apple is determined by connecting pigmentation rate of apple based on mature period of the Fuji apple. The outerior of the Fuji apple is classified by one to five steps according to the value of redness. The redness of first step to fifth step is -3.7~2.3, 2.3~9.8, 9.8~15.4, 15.4~21.6, and 21.6, respectively. The outer peel pigmentation rate of the first step to fifth step is under 30%, 30%-50%, 50%-60%, 60%-80%, over 80%, respectively.
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