Author:
Stephenson Gerald R.,Yaacoby Tuvia
Abstract
Abstract
The concept of using chemical safeners to improve herbicide selectivity became widely known in 1969 with the introduction of naphthalic anhydride (NA) to improve the tolerance of maize to thiocarbamate herbicides. Soon thereafter dichlormid was also developed as a safener for thiocarbamates in maize. At present there are at least eight different chemical safeners that have been developed commercially. Many of these safeners have been most effective for chloroacetamide or thiocarbamate herbicides in monocotyledonous crops such as maize or sorghum. Some are like dichlormid and have been developed as physiologically selective safeners that can be combined in the formulation with the herbicides. Others, like NA , are either less selective or less active in the soil and must be used as dressings on the crop seed. Most of the presently used safeners are for soil active herbicides. The challenge for the future will be to develop safeners that are effective for the newer postemergence herbicides in dicotyledonous as well as monocotyledonous crops.
Subject
General Biochemistry, Genetics and Molecular Biology
Cited by
5 articles.
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