2006
DOI: 10.1590/s0103-90162006000200005
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Resistance and differential susceptibility of Bidens pilosa and B. subalternans biotypes to ALS-inhibiting herbicides

Abstract: The frequent application of herbicides in agricultural areas may select resistant biotypes in weed populations, whose biological characteristics influence the speed and patterns of resistance. This research aims to charactere, simultaneously, resistance patterns and differential susceptibility of Bidens pilosa and B. subalternans biotypes to ALS-inhibiting herbicides of the imidazolinone and sulfonylurea chemical groups. Six hairy beggarticks biotypes, four suspected resistant and two known susceptible, were t… Show more

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Cited by 18 publications
(16 citation statements)
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“…Similar results were also found for other populations of BIDSU and BIDPI, where doses eight times higher than the recommended dose for imazethapyr and chlorimuron provided less than 50% control, (Lopez-Ovejero et al, 2006). Thus, it is likely that the field population in this current study is also cross-resistant to sulfonylurea herbicides.…”
Section: Resistance To Imazethapyrsupporting
confidence: 85%
See 1 more Smart Citation
“…Similar results were also found for other populations of BIDSU and BIDPI, where doses eight times higher than the recommended dose for imazethapyr and chlorimuron provided less than 50% control, (Lopez-Ovejero et al, 2006). Thus, it is likely that the field population in this current study is also cross-resistant to sulfonylurea herbicides.…”
Section: Resistance To Imazethapyrsupporting
confidence: 85%
“…The corolla of the marginal flowers is white in BIDPI and yellow or orange in BIDSU. BIDPI also has broader leaf segments, while BIDSU has narrower leaf segments (Grombone-Guaratini;Solferini;Semir, 2004;Lopez-Ovejero et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…Contudo, a suscetibilidade diferencial de espécies não se restringe ao gênero Amaranthus. Estudos demonstraram diferenças de suscetibilidade de espécies de Ipomoea ao herbicida bentazon (McClelland et al, 1978;Mathis & Oliver, 1980) e ao herbicida carfentrazone-ethyl (Christoffoleti et al, 2006); de espécies de Digitaria ao herbicida diuron (Dias et al, 2003); e de espé-cies de Bidens aos herbicidas chlorimuronethyl e imazethapyr (López-Ovejero et al, 2006).…”
Section: Constatou-se Que As Espécies Deunclassified
“…Os resultados encontrados no presente trabalho consistem em importante informação visando à criação de novas ferramentas no manejo de plantas daninhas do algodoeiro, pois permite que a interferência inicial seja reduzida, pela ação em pré-emergência destes herbicidas, além de proporcionar a rotação de mecanismos de ação e utilização de associações em tanque, o que consiste em prática importante visando à prevenção da resistência de plantas daninhas a herbicidas (López-Ovejero et al, 2006).…”
Section: Resultsunclassified