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Multiple resistance to glyphosate and imazethapyr in Bidens subalternans Ciência e Agrotecnologia
Mendes,Rafael Romero; Adegas,Fernando Storniolo; Takano,Hudson Kagueyama; Silva,Vanessa Francieli Vital; Machado,Fellipe Goulart; Oliveira Junior,Rubem Silvério de.
ABSTRACT Glyphosate has been widely used to control greater beggarticks populations that are resistant to acetolactate synthase (ALS) inhibitors in South America. However, herbicide control failures has been observed over the last three growing seasons in grain production areas of Paraguay. In this research, we report the first case of multiple resistance to glyphosate (EPSPs) and imazethapyr (ALS) in greater beggarticks (Bidens subalternans) population from Paraguay. This conclusion was supported by dose-response experiments conducted in two consecutive years (2018 and 2019) with a putative resistant (R) and a susceptible (S) population. Alternative herbicides were also tested for post-emergence control of R population. For glyphosate, the resistant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Greater beggarticks; EPSPS inhibitor; ALS inhibitors; Chemical control.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100235
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