Union Carbide Corporation

Rhone-poulenc, Inc.

Rhone-poulenc Nederland B.v.

Union Carbide Agricultural Products, Inc.

Charles D Fritz

Anson Richard Cooke

Wilbur F Evans

Thomas N Wheeler

David Treadway Manning

Raymond M See

James J Cappy

Wilbur E Evans

This invention relates to a method for retarding plant growth by applying to the plant an effective amount of a malonic acid derivative compound. This invention also relates to novel malonic acid derivative compounds and processes for the preparation thereof.

Use of malonic acid derivative compounds for retarding plant growth

This invention relates to synergistic plant growth regulator compositions containing (1) an ethylene response or ethylene-type response inducing agent and (11) a malonic acid derivative compound. This invention also relates to the use of said compositions for inducing synergistic plant growth regulating responses or ethylene responses or ethylene-type responses.

Synergistic plant growth regulator compositions

A growth regulation process involving certain phosphonic acid compounds having the general formula: ##STR1## The growth regulation process of the present invention relates mainly, though not entirely, to the inducement of an ethylene response or ethylene-type response in plants and part thereof including, but not limited to, stems, roots, leaves, flowers, buds, and harvested as well as unharvested fruit. The method of the present invention produces a wide variety of plant growth responses including:

Growth regulation methods

Growth regulation process

A method for controlling apical dominance which comprises applying to the plant an effective amount, ranging between about 0.1 lb. and about 16 lbs. per acre of plants being treated, of 2-chloroethylphosphonic acid.

Method for controlling apical dominance

A method for the inhibition of plant growth which comprises applying thereto an effective amount of 2-chloroethylphosphonic acid.

Growing community of inventors

Hatfield, PA, United States of America

Charles D Fritz