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US 4,728,355 AGranted
Pyridazinylurea plant regulators
AssigneeFMC Corporation
InventorRobert N. Henrie, II
Life of this patent
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Abstract
Pyridazinylurea plant regulators of the formula ##STR1## and acid addition salts thereof; wherein R is alkyl or cycloalkyl, R.sup.1 is hydrogen or alkyl, each X independently is halogen, alkoxy, alkylthi or alkylsulfonyl, and p is 0, 1 or 2.
Claims8
A method of retarding senescence in soybean and cotton plants which comprises applying to the plant a plant regulating amount of a pyridazinylurea compound of the formula:
- ##STR10## and acid addition salts thereof;
- wherein R is alkyl(C.sub.1 -C.sub.8) or cycloalkyl(C.sub.3 -C.sub.10), R.sup.1 is hydrogen or alkyl(C.sub.1 -C.sub.8), each X independently is halogen, alkoxy(C.sub.1 -C.sub.8), alkyl(C.sub.1 -C.sub.8)thio or alkyl(C.sub.1 -C.sub.8)sulfonyl, and p is 0, 1 or 2.
Dependencies are inferred from the claim text.