PROBLEM TO BE SOLVED: To obtain high-quality brown rice.SOLUTION: A method of obtaining high-quality brown rice comprises applying a compound represented by the formula (1) in the figure [where one of R1, R2, R3 and R4 represents trifluoromethyl group and the others represent hydrogen atoms, and R5 represents a methyl group or ethyl group] to a rice plant that is being grown, growing the rice plant until seeds are completely mature, and obtaining the brown rice from the completely mature seeds.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】高品質の玄米を取得すること。【解決手段】下記式(1)[式中、R1、R2、R3及びR4のいずれか一がトリフルオロメチル基を、その他は水素原子を表し、R5は、メチル基又はエチル基を表す。]で示される化合物を生育途中のイネに施用し、該イネを種子が完熟するまで栽培し、完熟した該種子より玄米を得ることを特徴とする、高品質の玄米の取得方法。【選択図】なし