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- Title
Physiological activity spectra of existing graminicides and the new herbicide 2-(2-benzothiazolyl-oxy)-N-methyl-N-phenylacetamide (mefenacet).
- Authors
Fedtke, C.
- Abstract
The inhibitory activities of existing graminicides on root regeneration from monocotyledonous (oat) and dicotyledonous (soybean) plant cuttings in the light, in the dark and on algal growth were compared with the respective inhibitory activities of the new herbicide 2-(2-benzothiazolyl-oxy)-<em>N</em>-methyl-<em>N</em>-phenylacetamide (mefenacet). The mefenacet activity spectrum resembled that of the α-chloroacetamide herbicides. Herbicide groups of other structure-activity can be distinguished by their distinct activity spectrum. The mono-oxygenase inhibitors piperonyl butoxide (PBO) and 1-aminobenzotriazole (ABT) were found to antagonize the inhibitory activities of herbicides from the thiolcarbamate, α-chloroacetamide, and oxyacetic acid amide structure groups in the oat rooting and leaf growth tests. The critical evaluation of the presently available information on graminicide and safener mode of action suggests the concept that lipid biosynthesis on the physiological level and mono-oxygenase type enzymes on the biochemical level may hold the target sites for many of the graminicides and safeners discussed.
- Subjects
OATS; GRAIN; GRASSES; SOYBEAN; BEANS; HERBICIDES
- Publication
Weed Research, 1987, Vol 27, Issue 3, p221
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1987.tb00757.x