| 摘要 |
A composition for regulating plant growth which comprises as an active ingredient(s) at least one 3-substituted phenylpyrazole derivative represented by the general formula (I): <CHEM> Äwherein R is -Y<1>R<3>, -Y<2>CH(R<4>)CO-OR<5>, -COOCH(R<4>)CO-Y<1>R<5> or -COOR<6> (wherein R<3> = alkyl, haloalkyl, alkenyl or alkynyl, R<4> = H or alkyl, R<5> = H, alkyl, haloalkyl, alkenyl or alkynyl, R<6> = alkyl, haloalkyl, alkenyl or alkynyl, Y<1> = -O- or -S-, and Y<2> is -O-, -S- or -NH-), R<1> is a lower alkyl group, R<2> is H, a lower alkyl group or a lower haloalkyl group, each of X<1> and X<2> is a halogen atom, Y is -O-, -S-, -SO-, -SO2- or -NH-, and n is 0 or 1Ü, and acts as a desiccant or defoliant for root vegetables (e.g. potato), fiber crops (e.g. cotton), oil crops (e.g. soybean and sunflower) and cereals (e.g. rice); and a method for applying said composition. |
