Mesosulfuron-Resistant Italian Ryegrass (Lolium Multiflorum) Biotype from Texas
| Autor: | Andrew T. Ellis, Gaylon D. Morgan, Thomas C. Mueller |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
0106 biological sciences
Acetolactate synthase biology Winter wheat 04 agricultural and veterinary sciences Plant Science Lolium multiflorum biology.organism_classification 01 natural sciences 010602 entomology Agronomy 040103 agronomy & agriculture Herbicide resistance biology.protein 0401 agriculture forestry and fisheries Agronomy and Crop Science |
| Zdroj: | Weed Technology. 22:431-434 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1614/wt-08-032.1 |
| Popis: | Acetolactate synthase (ALS)–inhibiting herbicides are often used to control Italian ryegrass in winter wheat in Texas. An Italian ryegrass biotype near Waco, TX was evaluated for resistance to mesosulfuron in field and greenhouse experiments. Control of the biotype in the field was less than 10% with the label rate of mesosulfuron (15 g ai/ha). Greenhouse studies confirmed that the biotype was resistant to mesosulfuron; control of the biotype was less than 35% at 120 g ai/ha mesosulfuron. The herbicide dose required to reduce plant biomass of a susceptible and the Waco biotype by 50% (GR50) was 1.3 and 31 g ai/ha, respectively, indicating a resistance level of 24-fold in the Waco biotype. However, the Waco biotype was controlled with the acetyl-CoA carboxylase inhibitors diclofop and pinoxaden. Nomenclature: Diclofop; mesosulfuron (proposed common name): methyl 2-[[[(4,6-dimethylsulfonyl)amino]methyl]benzoate]; pinoxaden (proposed common name): 8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-py... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|