ACCase-Inhibitor Herbicide Resistance in Downy Brome (Bromus tectorum) in Oregon
| العنوان: | ACCase-Inhibitor Herbicide Resistance in Downy Brome (Bromus tectorum) in Oregon |
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| المؤلفون: | Larry H. Bennett, Daniel A. Ball, Sandra M. Frost |
| المصدر: | Weed Science. 55:91-94 |
| بيانات النشر: | Cambridge University Press (CUP), 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | 0106 biological sciences, education.field_of_study, Pesticide resistance, biology, Population, food and beverages, 04 agricultural and veterinary sciences, Plant Science, Bromus tectorum, Pesticide, biology.organism_classification, 01 natural sciences, 010602 entomology, Agronomy, Acetyl-coenzyme A carboxylase, Botany, 040103 agronomy & agriculture, Herbicide resistance, 0401 agriculture, forestry, and fisheries, Poaceae, Weed, education, Agronomy and Crop Science |
| الوصف: | In spring 2005, a downy brome population with possible resistance to fluazifop-P, an acetyl-CoA carboxylase (ACCase) inhibitor (group 1) herbicide was found in a commercial creeping red fescue seed production field, near La Grande, OR, where fluazifop-P had been used to control downy brome repeatedly over 7 yr. Greenhouse experiments were conducted to confirm resistance to a number of group 1 herbicides. The suspected resistant downy brome accession was tested for resistance to fluazifop-P and tested for cross-resistance to other aryloxyphenoxy propionate (APP) and cyclohexanedione (CHD) herbicides, including quizalofop-P, sethoxydim, and clethodim. Data recorded included plant-mortality counts and biomass. Tests revealed that the La Grande downy brome accession was highly resistant to fluazifop-P and sethoxydim at all tested rates. The La Grande accession suffered no mortality from fluazifop-P or sethoxydim treatments up to the maximum tested rate of eight times (8×) the labeled recommendation. The La Grande accession was resistant to quizalofop-P and clethodim at the labeled rate or less but was susceptible to application rates higher than the labeled rate. The control downy brome accession was completely susceptible to fluazifop-P, quizalofop-P, and clethodim at all rates and exhibited increasing susceptibility with increasing sethoxydim rate. This pattern of cross-resistance differs from that of a previously reported case of ACCase resistance in downy brome. |
| تدمد: | 1550-2759 0043-1745 |
| DOI: | 10.1614/ws-06-120.1 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f5619bb5506731037342e3495867a3b5 https://doi.org/10.1614/ws-06-120.1 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........f5619bb5506731037342e3495867a3b5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15502759 00431745 |
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| DOI: | 10.1614/ws-06-120.1 |