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Adsorption, Mobility, and Microbial Degradation of Glyphosate in the Soil
Glyphosate [N-(phosphonomethyl)glycine] was readily bound to kaolinite, illite, and bentonite clay and to charcoal and muck but not to ethyl cellulose. Fe +++ and Al +++ -saturated clays and organicExpand
Statistical Tests for Hormesis and Effective Dosages in Herbicide Dose Response
The log-logistic model is a popular candidate for modeling dose response in agronomy. One of its limitations is monotonicity: the response is either continuously increasing or decreasing with changesExpand
Rapid Inactivation of Glyphosate in the Soil
In greenhouse studies, soil applications of 14 C-methyl-labeled glyphosate were not readily absorbed by corn and soybean and glyphosate available to plants in sand culture was absorbed, suggesting initial inactivation of glyphosate in soil is by reversible adsorption to clay and organic matter through the phosphonic acid moiety. Expand
Potential basis of glyphosate resistance in California rigid ryegrass (Lolium rigidum)
Glyphosate-resistant rigid ryegrass has been identified in California, but research has yet to elucidate the resistance mechanism, and biotype differences in sensitivity or metabolism of shikimic acid do not explain differences. Expand
Absorption, translocation and metabolism of 14C-glyphosate in several weed species.
Field bindweed, Canada thistle, and tall morningglory metabolized the parent glyphosate to aminomethylphosphonic acid to a limited extent and 14C applied to excised leaves had disappeared within 25 days. Expand
The basis for the hard-water antagonism of glyphosate activity
Hard-water cations, such as Ca+2 and Mg+2, present in the spray solution can greatly reduce the efficacy of glyphosate. These cations potentially compete with the iso- propylamine in the formulationExpand
Absorption, Action, and Translocation of Glyphosate
The respiration of quackgrass treated with glyphosate was significantly reduced 9 days after treatment, and Glyphosate reduced total photosynthesis more in quack Grass than in wheat. Expand
Biochemical mechanism and molecular basis for ALS-inhibiting herbicide resistance in sugarbeet (Beta vulgaris) somatic cell selections
The 93R30B double mutant represents the first double mutant derived by a two-step selection process that incorporates two class-specific ALS-inhibitor resistance mutations to form a single broad cross-resistance trait. Expand
Pinto bean (Phaseolus vulgaris) varietal tolerance to imazethapyr
Field and laboratory studies were conducted to determine if differences existed in pinto bean varietal toler- ance to postemergence application of imazethapyr under field conditions; if differencesExpand
Glyphosate Efficacy is Antagonized by Manganese1
Michigan soybean producers have observed that glyphosate efficacy is sometimes reduced in tank mixtures with foliar manganese (Mn) fertilizers. The objectives of this study were to evaluate theExpand