Understanding the Differential Response of Setaria viridis L. (green foxtail) and Setaria pumila Poir. (yellow foxtail) to Pyroxsulam
| Autor: | Gerrit J. deBoer, Satchivi Norbert M, Jared L. Bell |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Setaria Plant Als gene 01 natural sciences Enzyme Inhibitors Plant Proteins Setaria pumila Sulfonamides Acetolactate synthase biology Herbicides Setaria viridis 04 agricultural and veterinary sciences General Chemistry Pesticide biology.organism_classification Weed control Plant Leaves Acetolactate Synthase Pyrimidines Agronomy Foxtail 040103 agronomy & agriculture biology.protein 0401 agriculture forestry and fisheries General Agricultural and Biological Sciences Weed 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry. 65:7328-7336 |
| ISSN: | 1520-5118 0021-8561 |
| Popis: | Green foxtail [Setaria viridis (L) Beauv.] and yellow foxtail [Setaria pumila (Poir.) Roem. & Schult.] are among the most abundant and troublesome annual grass weeds in cereal crops in the Northern Plains of the United States and the Prairie Provinces of Canada. Greenhouse and laboratory experiments were conducted to examine the differential responses of both weed species to foliar applications of the new triazolopyrimidine sulfonamide acetolactate synthase-inhibiting herbicide, pyroxsulam, and to determine the mechanism(s) of differential weed control. Foliar applications of pyroxsulam resulted in >90% control of yellow foxtail at rates between 7.5 and 15 g ai ha–1, whereas the same rates resulted in a reduced efficacy on green foxtail (≤81%). The absorption and translocation of [14C]pyroxsulam in green and yellow foxtail were similar and could not explain the differential whole-plant efficacy. Studies with [14C]pyroxsulam revealed a higher percentage of absorbed pyroxsulam was metabolized into an inacti... |
| Databáze: | OpenAIRE |
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