Kochia (Kochia scoparia) Emergence Profiles and Seed Persistence across the Central Great Plains
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چکیده
منابع مشابه
Nutritional and toxicological evaluations of kochia hay (Kochia scoparia) fed to lambs.
Kochia foliage that had tested positive to Dragendorff's reagent (presumptive alkaloids) and had elicited chronic toxicosis when fed to rats was fed to sheep to characterize early stages of kochia toxicosis and evaluate treatments that might improve tolerance. Twelve fine-wool lambs (46 +/- 9 kg BW) were fed chopped kochia hay (35%) mixed with chopped alfalfa hay (65%) for 4 wk. The kochia diet...
متن کاملFitness Outcomes Related to Glyphosate Resistance in Kochia (Kochia scoparia): What Life History Stage to Examine?
A fast-spreading weed, kochia (Kochia scoparia), has developed resistance to the widely-used herbicide, glyphosate. Understanding the relationship between the occurrence of glyphosate resistance caused by multiple EPSPS gene copies and kochia fitness may suggest a more effective way of controlling kochia. A study was conducted to assess fitness cost of glyphosate resistance compared to suscepti...
متن کاملEffects of metoclopramide on steers fed Kochia scoparia hay.
Kochia hay that had elicited mild toxicosis in sheep and cattle when fed for 21 d was fed to young, growing steers to evaluate the efficacy of metoclopramide for preventing kochia toxicosis. Twelve steers (271 +/- 39 kg) were given ad libitum access to Kochia hay for 38 d. Six steers were dosed orally with 15 mg of metoclopramide/kg of BW three times each week in gelatin capsules, and six steer...
متن کاملInfluence of herbicides applied postharvest in wheat stubble on control, fecundity, and progeny fitness of Kochia scoparia in the US Great Plains
Field, greenhouse, and laboratory experiments were conducted at the Montana State University Southern Agricultural Research Center, Huntley, MT, USA, in 2012 and 2013, to evaluate the effectiveness of various postharvest-appliedherbicideson late-season control, fecundity, seed viability, andprogenyfitnessofKochia scoparia (kochia) in wheat stubble. Paraquat þ atrazine, paraquat þ linuron, and p...
متن کاملGrowth and Reproduction of Glyphosate-Resistant and Susceptible Populations of Kochia scoparia
Evolution of glyphosate-resistant kochia is a threat to no-till wheat-fallow and glyphosate-resistant (GR) cropping systems of the US Great Plains. The EPSPS (5-enol-pyruvylshikimate-3-phosphate synthase) gene amplification confers glyphosate resistance in the tested Kochia scoparia (L.) Schrad populations from Montana. Experiments were conducted in spring to fall 2014 (run 1) and summer 2014 t...
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ژورنال
عنوان ژورنال: Weed Science
سال: 2017
ISSN: 1550-2759
DOI: 10.1017/wsc.2017.18