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| ZOBIOLE,L.H.S.; PEREIRA,V.G.C.; ALBRECHT,A.J.P.; RUBIN,R.S.; ADEGAS,F.S.; ALBRECHT,L.P.. |
| ABSTRACT: In Brazil, some populations of Conyza bonariensis and C. canadensis are glyphosate resistant and there are populations of C. sumatrensis (Sumatran fleabane) presenting multiple resistance to both glyphosate and chlorimuron. During the 2014/2015 and 2015/2016 seasons, growers reported failures to control Sumatran fleabane with paraquat. This study investigated the potential of paraquat resistant Sumatran fleabane populations in Paraná state, Brazil. Populations with suspected paraquat resistance were tested in the field in 2016 season. In 2017, seeds from these populations were collected, sown and grown in a greenhouse. Paraquat dose-response curve experiments were performed in Mogi Mirim, SP; Londrina, PR and Palotina, PR using doses of 0, 50,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Control; Dose-response; PSI inhibitor. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100218 |
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| KRENCHINSKI,F.H.; PEREIRA,V.G.C.; ZOBIOLE,L.H.S.; ALBRECHT,A.J.P.; ALBRECHT,L.P.; PETERSON,M.. |
| ABSTRACT: Control of Conyza spp. prior to soybean sowing has faced difficulties because of the resistance cases in Brazil, hence new herbicides as halauxifen-methyl + diclosulam are important to manage this specie. The objective of this research was to evaluate the effectiveness of the herbicide halauxifen-methyl + diclosulam applied at pre-planting of soybean. The experiments were set up in three locations in Paraná State, Brazil, in the 2015/2016 season. The herbicide halauxifen-methyl + diclosulam was associated with glyphosate and compared to other commercial herbicide to Conyza spp. control. The application occurred 15 days before soybean sowing, in plants of Conyza spp. with an average height of 20-35 cm in the three areas. None of the treatments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Burn down; Conyza spp. control.; Arylpicolinate herbicide; Auxin mimic herbicide; Glycine max. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100258 |
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