Weed interference period and economic threshold level in barley
Open accessAbstract
Determination of interference periods, competitive ability and economic threshold level (ETL) are important tools for integrated weed management (IWM) in barley.The objective of the work was to determine the periods of interference, the competitive ability and the ETL of weeds in barley (Hordeum vulgare).Two field experiments were carried out, in a randomized block design, with four replications.In this study, the periods of coexistence and control for ryegrass (Lolium multiflorum) and turnip (Raphanus raphanistrum) infesting barley cultivar, cv.ANA 01 were evaluated.The coexistence periods and/or control were: 0, 7, 14, 21, 28, 35, 42 and 120 days after barley emergence (DAE).In experiment 2the treatments for determination of ETLs were composed by barley cultivars (BRS Suábia, ANA 01, BRS Korbel, BRS Manduri, BRS Cauê and BRS Greta), and turnip densities, from zero (0) to maximum densities of 816, 788, 948, 394, 584 and 618 plants • m -2 , in competition with each cultivar.Control of turnip and ryegrass should be adopted in barley in the period between 12 to 22 DAE, which is described as a critical control period.The rectangular hyperbola adequately estimates losses in grain yield due to turnip infestation.There is an effect on the competitive ability of the cultivars in relation to turnip, which resulted in ETLs that ranged from 0.27 to 1.99 plants • m -2 .The cultivars BRS Greta, BRS Suábia, ANA 01 and BRS Manduri were the most competitive in the presence of turnip.
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Some weeds have developed resistance to herbicides that inhibit acetyl-coenzyme A carboxylase (ACCase), acetolactate synthase (ALS), and enol pyruvyl shiquimate phosphate synthase (EPSPS), suggesting that herbicides with new modes of action are needed.
“Some of these weeds have developed resistance to herbicides that inhibit acetyl-coenzyme A carboxylase (ACCase), acetolactate synthase (ALS), and enol pyruvyl shiquimate phosphate synthase (EPSPS), suggesting that herbicides with new modes of action are needed (Galon et al., 2022).”
From Genetic resources and precise gene editing for targeted improvement of barley abiotic stress tolerance (2023) · cites this paper as Galon et al., 2022
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Research works printed but not linked: 3
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Karunarathne, S., Walker, E., Sharma, D., Li, C., & Han, Y. (2023) · Journal of Zhejiang University-SCIENCE B · doi:10.1631/jzus.b2200552 · Cited by 18 · see citing works
- Authors
- Galon, L., Basso, F. J. M., Forte, C. T., Bagnara, M. A. M., Gallina, A., Aspiazú, I., Radünz, A. L., Perin, G. F., & Brunetto, L.
- Affiliations
- Universidade Federal da Fronteira Sul (BR)
- Universidade Estadual de Montes Claros (BR)
- ORCID
- Venue
- Journal of Plant Protection Research
- Published
- 2023-11-06
- ISSN
- 1427-4345 (ISSN-L)
- 1899-007X
- OpenAlex
- W3202299781
- Cited by
- 5
- References
- 24
- Citations by year
- 2024: 1 · 2023: 3 · 2022: 1
- FWCI
- 0.63
- Type
- journal article
- Language
- pl
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc-nd
- Locations
- Journal of Plant Protection Research (publishedVersion, cc-by-nc-nd)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Universidade Federal da Fronteira Sul
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (2019-5, 306927/2019-5)
- Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
- Financiadora de Estudos e Projetos
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Weed Control and Herbicide Applications
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Allelopathy and phytotoxic interactions
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Agronomic Practices and Intercropping Systems
- Keywords
- economic threshold, barley, Lolium multiflorum, wild radish, turnip, ryegrass, integrated weed management, grain yield loss, rectangular hyperbola, barley cultivars, weed control timing
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