First report of Amaranthus viridis resistance to herbicides

Detalhes bibliográficos
Autor(a) principal: Francischini,A.C.
Data de Publicação: 2014
Outros Autores: Constantin,J., Oliveira JR.,R.S., Santos,G., Braz,G.B.P., Dan,H.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Planta daninha (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300013
Resumo: Due to the limited number of herbicides registered for the control of dicot weeds in cotton crops, ALS inhibitors have been used on an intensive and recurrent basis. Given that, cases of poor weed control have been described after application of these herbicides in the main cotton producing areas in Brazil, the purpose of the present work was to evaluate the occurrence of resistance to ALS herbicides in Amaranthus viridis biotypes from those areas. Dose-response curves were prepared after pre-emergence applications of trifloxysulfuron-sodium (0; 1.8; 3.7; 7.5; 15 and 30 g ha-1) and pyrithiobac-sodium (0; 35; 70; 140; 280 and 560 g ha-1), equivalent to 0, ¼, ½, 1, 2 and 4 times the recommended commercial rates. The selection of trifloxysulfuron-sodium resistant biotypes of A. viridis was confirmed in samples from Bahia (BA 7, BA 8, BA 9 and BA 11). However, no resistance to pyrithiobac-sodium was found for biotypes either from Bahia or from Mato Grosso do Sul.
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spelling First report of Amaranthus viridis resistance to herbicidestrifloxysulfuron-sodiumpyrithiobac-sodiumslender amaranthALS-inhibiting herbicidesDue to the limited number of herbicides registered for the control of dicot weeds in cotton crops, ALS inhibitors have been used on an intensive and recurrent basis. Given that, cases of poor weed control have been described after application of these herbicides in the main cotton producing areas in Brazil, the purpose of the present work was to evaluate the occurrence of resistance to ALS herbicides in Amaranthus viridis biotypes from those areas. Dose-response curves were prepared after pre-emergence applications of trifloxysulfuron-sodium (0; 1.8; 3.7; 7.5; 15 and 30 g ha-1) and pyrithiobac-sodium (0; 35; 70; 140; 280 and 560 g ha-1), equivalent to 0, ¼, ½, 1, 2 and 4 times the recommended commercial rates. The selection of trifloxysulfuron-sodium resistant biotypes of A. viridis was confirmed in samples from Bahia (BA 7, BA 8, BA 9 and BA 11). However, no resistance to pyrithiobac-sodium was found for biotypes either from Bahia or from Mato Grosso do Sul.Sociedade Brasileira da Ciência das Plantas Daninhas 2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300013Planta Daninha v.32 n.3 2014reponame:Planta daninha (Online)instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)instacron:SBCPD10.1590/S0100-83582014000300013info:eu-repo/semantics/openAccessFrancischini,A.C.Constantin,J.Oliveira JR.,R.S.Santos,G.Braz,G.B.P.Dan,H.A.eng2014-09-15T00:00:00Zoai:scielo:S0100-83582014000300013Revistahttp://revistas.cpd.ufv.br/pdaninhaweb/https://old.scielo.br/oai/scielo-oai.php||rpdaninha@gmail.com1806-96810100-8358opendoar:2014-09-15T00:00Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)false
dc.title.none.fl_str_mv First report of Amaranthus viridis resistance to herbicides
title First report of Amaranthus viridis resistance to herbicides
spellingShingle First report of Amaranthus viridis resistance to herbicides
Francischini,A.C.
trifloxysulfuron-sodium
pyrithiobac-sodium
slender amaranth
ALS-inhibiting herbicides
title_short First report of Amaranthus viridis resistance to herbicides
title_full First report of Amaranthus viridis resistance to herbicides
title_fullStr First report of Amaranthus viridis resistance to herbicides
title_full_unstemmed First report of Amaranthus viridis resistance to herbicides
title_sort First report of Amaranthus viridis resistance to herbicides
author Francischini,A.C.
author_facet Francischini,A.C.
Constantin,J.
Oliveira JR.,R.S.
Santos,G.
Braz,G.B.P.
Dan,H.A.
author_role author
author2 Constantin,J.
Oliveira JR.,R.S.
Santos,G.
Braz,G.B.P.
Dan,H.A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Francischini,A.C.
Constantin,J.
Oliveira JR.,R.S.
Santos,G.
Braz,G.B.P.
Dan,H.A.
dc.subject.por.fl_str_mv trifloxysulfuron-sodium
pyrithiobac-sodium
slender amaranth
ALS-inhibiting herbicides
topic trifloxysulfuron-sodium
pyrithiobac-sodium
slender amaranth
ALS-inhibiting herbicides
description Due to the limited number of herbicides registered for the control of dicot weeds in cotton crops, ALS inhibitors have been used on an intensive and recurrent basis. Given that, cases of poor weed control have been described after application of these herbicides in the main cotton producing areas in Brazil, the purpose of the present work was to evaluate the occurrence of resistance to ALS herbicides in Amaranthus viridis biotypes from those areas. Dose-response curves were prepared after pre-emergence applications of trifloxysulfuron-sodium (0; 1.8; 3.7; 7.5; 15 and 30 g ha-1) and pyrithiobac-sodium (0; 35; 70; 140; 280 and 560 g ha-1), equivalent to 0, ¼, ½, 1, 2 and 4 times the recommended commercial rates. The selection of trifloxysulfuron-sodium resistant biotypes of A. viridis was confirmed in samples from Bahia (BA 7, BA 8, BA 9 and BA 11). However, no resistance to pyrithiobac-sodium was found for biotypes either from Bahia or from Mato Grosso do Sul.
publishDate 2014
dc.date.none.fl_str_mv 2014-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-83582014000300013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
dc.source.none.fl_str_mv Planta Daninha v.32 n.3 2014
reponame:Planta daninha (Online)
instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron:SBCPD
instname_str Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron_str SBCPD
institution SBCPD
reponame_str Planta daninha (Online)
collection Planta daninha (Online)
repository.name.fl_str_mv Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
repository.mail.fl_str_mv ||rpdaninha@gmail.com
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