Method for controlling the growth of plants

Details Method for controlling the growth of plants Method for controlling the growth of plants

A - Human Necessities

01

N

71/10.3

A01N 25/00 (2006.01)

Patent

CA 1072359

METHOD FOR CONTROLLING THE GROWTH OF PLANTS ABSTRACT OF THE DISCLOSURE A method for controlling the growth of plants, characterized by applying a plant growth regulator containing as active ingredient a benzenesulfonamide derivative represented by the general formula, Image wherein X is a halogen atom, an alkyl group having 1 to 5 carbon atoms, a nitro group, an amino group, an alkoxy group having 1 to 5 carbon atoms, an alkyl- thio group having 1 to 5 carbon atoms, an alkylsulfonyl group having 1 to 5 carbon atoms, or a group of the formula R3CONH- (where R3 is an alkyl group having 1 to 5 carbon atoms); n is an integer of 0 to 5; R1 is hydrogen, an alkyl group having 1 to 5 carbon atoms, a phenyl group, a group of the formula -(A)-COOR4 [where R4 is hydrogen, an alkyl group having 1 to 5 carbon atoms, a cation such as Na+, K+, ammonium or a quaternary ammonium ion, and (A) is a group of the formula -(CH2)m- (where m is an integer of 1 to 3), or a group of the formula Image (where R5 and R6 are individually hydrogen or an alkyl group having 1 to 5 carbon atoms)]; and R2 is a straight chain, branched chain or alicyclic alkyl group having 1 to 15 carbon atoms, a hydroxyalkyl group having 1 to 5 carbon atoms, a haloalkyl group having 1 to 5 carbon atoms, a hydroxyl group, an amino- alkyl group having 1 to 5 carbon atoms, a cyano- C1-5-alkyl, an alkenyl group having 2 to 5 carbon atoms, a C1-5-alkoxy-C5-5-alkyl group, a sulfo- alkyl group having 1 to 5 carbon atoms, a phenyl- substituted alkyl group having 1 to 5 carbon atoms, or a group of the formula -(A)-COOR4 (where R4 and (A) are as defined above), when R1 is hydrogen; is a hydroxyalkyl group having 1 to 5 carbon atoms, a group of the formula -(A)-COOR4 (where R4 and (A) are as defined above), a group of the formula -(B)-OOCR7[where R7 is a phenyl group or an alkyl group having 1 to 5 carbon atoms, and (B) is a group of the formula (CH2)j- (where j is an integer of 1 to 3), or a group of the formula Image (where R5 and R6 are as defined above)], when R1 is an alkyl group having 1 to 5 carbon atoms; and is a group of the formula -(A)-COOR4 (where R4 and (A) are as defined above), when R1 is a phenyl group or a group of the formula -(A)-COOR4 (where R4 and (A) are as defined above).

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