Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations

Detalhes bibliográficos
Autor(a) principal: NÚÑEZ FRÉ,F.R.
Data de Publicação: 2018
Outros Autores: JUAN,V.F., YANNICCARI,M., SAINT ANDRÉ,H.M., FERNANDEZ,R.R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Planta daninha (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100209
Resumo: ABSTRACT: Euphorbia davidii (Euphorbiaceae) is a summer annual weed present in the Province of Buenos Aires, Argentina. The aim of this study was to compare the sensitivity to glyphosate of different populations of Euphorbia davidii. Two techniques were used: a seed bioassay and shikimate determination in glyphosate-treated plants. Germination rates of seeds belonging to the populations from Espartillar, Barrow, Olavarria and Azul exposed to different concentrations of glyphosate were compared. Plants from the same locations treated with glyphosate were evaluated to determine shikimate levels. The most sensitive population was from Espartillar, with a CE50 (average effective concentration) of 4.00 g e.a. L-1. Based on this finding, the resistance index for each population was 1.76, 2.39 and 2.48 for Azul, Olavarria and Barrow respectively. Regarding glyphosate-treated plants in which shikimate levels were determined, a significant increase in the concentration of this metabolite was only observed in the population from Espartillar. Accumulation of shikimate was not detected in the other groups. These results show differential sensitivity to glyphosate of the evaluated populations.
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spelling Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populationsherbicide resistancegerminationbioassayshikimateEUDA5ABSTRACT: Euphorbia davidii (Euphorbiaceae) is a summer annual weed present in the Province of Buenos Aires, Argentina. The aim of this study was to compare the sensitivity to glyphosate of different populations of Euphorbia davidii. Two techniques were used: a seed bioassay and shikimate determination in glyphosate-treated plants. Germination rates of seeds belonging to the populations from Espartillar, Barrow, Olavarria and Azul exposed to different concentrations of glyphosate were compared. Plants from the same locations treated with glyphosate were evaluated to determine shikimate levels. The most sensitive population was from Espartillar, with a CE50 (average effective concentration) of 4.00 g e.a. L-1. Based on this finding, the resistance index for each population was 1.76, 2.39 and 2.48 for Azul, Olavarria and Barrow respectively. Regarding glyphosate-treated plants in which shikimate levels were determined, a significant increase in the concentration of this metabolite was only observed in the population from Espartillar. Accumulation of shikimate was not detected in the other groups. These results show differential sensitivity to glyphosate of the evaluated populations.Sociedade Brasileira da Ciência das Plantas Daninhas 2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100209Planta Daninha v.36 2018reponame:Planta daninha (Online)instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)instacron:SBCPD10.1590/s0100-83582018360100005info:eu-repo/semantics/openAccessNÚÑEZ FRÉ,F.R.JUAN,V.F.YANNICCARI,M.SAINT ANDRÉ,H.M.FERNANDEZ,R.R.eng2018-04-05T00:00:00Zoai:scielo:S0100-83582018000100209Revistahttp://revistas.cpd.ufv.br/pdaninhaweb/https://old.scielo.br/oai/scielo-oai.php||rpdaninha@gmail.com1806-96810100-8358opendoar:2018-04-05T00:00Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)false
dc.title.none.fl_str_mv Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
title Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
spellingShingle Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
NÚÑEZ FRÉ,F.R.
herbicide resistance
germination
bioassay
shikimate
EUDA5
title_short Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
title_full Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
title_fullStr Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
title_full_unstemmed Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
title_sort Comparison of Sensitivity to Glyphosate of Euphorbia davidii Populations
author NÚÑEZ FRÉ,F.R.
author_facet NÚÑEZ FRÉ,F.R.
JUAN,V.F.
YANNICCARI,M.
SAINT ANDRÉ,H.M.
FERNANDEZ,R.R.
author_role author
author2 JUAN,V.F.
YANNICCARI,M.
SAINT ANDRÉ,H.M.
FERNANDEZ,R.R.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv NÚÑEZ FRÉ,F.R.
JUAN,V.F.
YANNICCARI,M.
SAINT ANDRÉ,H.M.
FERNANDEZ,R.R.
dc.subject.por.fl_str_mv herbicide resistance
germination
bioassay
shikimate
EUDA5
topic herbicide resistance
germination
bioassay
shikimate
EUDA5
description ABSTRACT: Euphorbia davidii (Euphorbiaceae) is a summer annual weed present in the Province of Buenos Aires, Argentina. The aim of this study was to compare the sensitivity to glyphosate of different populations of Euphorbia davidii. Two techniques were used: a seed bioassay and shikimate determination in glyphosate-treated plants. Germination rates of seeds belonging to the populations from Espartillar, Barrow, Olavarria and Azul exposed to different concentrations of glyphosate were compared. Plants from the same locations treated with glyphosate were evaluated to determine shikimate levels. The most sensitive population was from Espartillar, with a CE50 (average effective concentration) of 4.00 g e.a. L-1. Based on this finding, the resistance index for each population was 1.76, 2.39 and 2.48 for Azul, Olavarria and Barrow respectively. Regarding glyphosate-treated plants in which shikimate levels were determined, a significant increase in the concentration of this metabolite was only observed in the population from Espartillar. Accumulation of shikimate was not detected in the other groups. These results show differential sensitivity to glyphosate of the evaluated populations.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100209
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s0100-83582018360100005
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.36 2018
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)
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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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