Patent ID: 6297194
Filing Date: 2001-10-02
Classification: A01N,C07F

Abstract:
A method of inducing male sterility in a plant comprising treating the plant or a seed thereof with a composition comprising a gametocidally effective amount of one or more compounds of formula I or II ##STR6##and an agronomically acceptable carrier, wherein:R.sup.1 is selected from the group consisting of hydrogen, alkyl, aryl, heteroaryl, benzyl and C3-C8 cycloalkyl;R.sup.2 is selected from the group consisting of hydrogen, alkyl, benzyl, C1-C8 alkenyl, and a salt;R.sup.3 is selected from the group consisting of hydrogen, alkyl, aryl and heteroaryl;R.sup.4 is selected from the group consisting of hydrogen, alkyl, phenyl, and a salt;R.sup.5 is selected from the group consisting of hydrogen, alkyl, phenyl, and a salt;R.sup.6 is selected from the group consisting of alkyl, aryl and heteroaryl;alkyl is selected from the group consisting of C1-C8;aryl is selected from the group consisting of phenyl; naphthyl; phenyl substituted with 1-5 groups selected from halogen, trihalomethyl, C1-C8 alkyl, C1-C8 alkoxy, nitro and cyano; and naphthyl substituted with 1-5 groups selected from halogen, trihalomethyl, C1-C8 alkyl, C1-C8 alkoxy, nitro and cyano;benzyl is selected from the group consisting of benzyl and benzyl substituted with 1-3 groups selected from halogen, trihalomethyl, C1-C8 alkyl, C1-C8 alkoxy, nitro and cyano; andheteroaryl is selected from the group consisting of pyridyl and pyridyl substituted with 1-4 groups selected from halogen, trihalomethyl, C1-C8 alkyl, C1-C8 alkoxy, nitro and cyano.