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| Santos,G.; Oliveira Jr.,R.S.; Constantin,J.; Francischini,A. C.; Osipe,J. B.. |
| Weed resistance to herbicides has been a major issue in Brazil, mainly due to the inefficiency of the herbicides used in no-till areas and to the high cost of these herbicide treatments. Failures in controlling the weed Conyza have been reported in Western and Northern grain crop areas in Paraná (Brazil). This work aimed to evaluate the potential occurrence of C. sumatrensis biotypes resistant to the herbicides chlorimuron-ethyl and glyphosate. Experiments were carried out under greenhouse conditions with four biotypes (Cascavel-2, Toledo-4, Tupãssi-6, and Assis Chateaubriand-7) possibly resistant to, as well as a population considered susceptible to chlorimuron-ethyl and glyphosate. To obtain dose-response curves, eight herbicide doses of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: EPSPs; Sulfonilureas; ALS-inhibitors; Sumatran fleabane; Multiple resistance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200019 |
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| Moura,Diogo da Silva; Noldin,José Alberto; Galon,Leandro; Helgueira,Diogo Balbé; Martins,Karen Piraine; Cassol,Luciano Luis. |
| ABSTRACT: California arrowhead is one of the primary weeds infesting paddy rice fields in the Brazilian states of Santa Catarina and Rio Grande do Sul, where the system of pre-germinated seeding is used. The objective of this study was to evaluate the selectivity and effectiveness of saflufenacil application in irrigated rice, either singly or in combination with other herbicides in the same application or sequentially, for the control of Sagittaria montevidensis biotype that is resistant to ALSand PSII-inhibiting herbicides. In the first experiment carried out in a greenhouse, saflufenacil was applied, either singly or in combination with penoxsulam, bispyribac-sodium, pyrazosulfuron-ethyl, bentazon, or propanil to the S. montevidensis (SAGMO 32) biotype... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Sagitaria; Multiple resistance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202084 |
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