PROBLEM TO BE SOLVED: To provide a method for adjusting coloring which reduces costs and labor relating to spraying an adjuster or installation of a machine for covering a tree or the like with a colored film, and can perform adjusting colors of fruit skin (delaying of a coloring timing) of citrus fruits such as a "Citrus sudachi" and a "lemon" without depending on drugs.SOLUTION: The method for adjusting coloring of fruits includes laying a fruit skin color adjusting sheet on a ground G where a fruit tree F is planted and irradiating the fruits with a reflecting light having a wavelength of 460 or 490 nm maximum, and in the range of 350-600 nm.COPYRIGHT: (C)2012,JPO&INPIT【課題】調整剤散布や色付きフィルムで覆う機材設置に係る費用や労力を軽減し、かつ薬剤に頼らない「すだち」「レモン」といった柑橘類の果皮色調整(着色時期の遅延)を行うことが可能な着色調整方法を提供する。【解決手段】果樹Fが植えられている地面G上に果皮色調整シートを敷設して、460ないし490nmを最大とし、かつ350~600nmの範囲の波長の反射光を果実に照射することを特徴とする。【選択図】図3
