Agent for the regulation of plant growth

Abstract

The present invention relates to new compositions and methods for the regulation of plant growth, especially for fruit abscission, acceleration of ripening and latex discharge and to new active substances of the class of .beta.-halogenoethyl-methyl-silanes. The active substances in the new compositions respond to the formula ##STR1## wherein X is chlorine or bromine, each of the radicals R.sub.1 and R.sub.2 independently represent substituted or unsubstituted alkyl radicals, alkenyl, halogenalkenyl, alkynyl and cycloalkyl radicals, substituted or unsubstituted phenyl and benzyl radicals; one or each of the symbols R.sub.1 and R.sub.2 can also represent the group --COR.sub.3 wherein R.sub.3 stands for an unsubstituted or substituted alkyl or alkenyl radical, a possible phenyl substituent being itself substituted or not, for an alkynyl, alkoxyalkyl, alkoxycarbonylalkyl, benzoylalkyl or phenyl radical the latter being optionally substituted or for a heterocyclic radical; R.sub.1 and R.sub.2, also with the signification of --COR.sub.3 can also form together with the adjacent atoms a silicon-containing heterocyclic ring system. The .beta.-bromoethyl-methyl-silanes (X=Br) of the above formula and all those .beta.-chloroethyl-methyl-silanes (X=Cl) wherein not both radicals R.sub.1 and R.sub.2 represent the methyl group, are new compounds.

Dependencies are inferred from the claim text.