First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.

Abstract: Echinochloa crus-galli is the main weed in direct dry-seeded rice systems worldwide and is the target of most herbicide applications. Numerous cases of E. crus-galli biotypes with resistance to herbicides have been reported in dierent regions of the world; however, to date, no cases have b...

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Autores: MARCHESI, C., SALDAIN, N.E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Uruguay
Institución:Instituto Nacional de Investigación Agropecuaria
Repositorio:AINFO
Idioma:inglés
OAI Identifier:oai:redi.anii.org.uy:20.500.12381/1112
Acceso en línea:https://ainfo.inia.uy/consulta/busca?b=pc&id=60442&biblioteca=vazio&busca=60442&qFacets=60442
Access Level:acceso abierto
Palabra clave:RICE (ORYZA SATIVA L.)
BARNYARDGRASS
PROPANIL
QUINCLORAC
PENOXSULAM
IMAZAPIR + IMAZAPIC
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spelling 2022-10-21T01:27:31Z2022-10-21T01:27:31Z20192022-10-21T01:27:31Zhttps://ainfo.inia.uy/consulta/busca?b=pc&id=60442&biblioteca=vazio&busca=60442&qFacets=60442Abstract: Echinochloa crus-galli is the main weed in direct dry-seeded rice systems worldwide and is the target of most herbicide applications. Numerous cases of E. crus-galli biotypes with resistance to herbicides have been reported in dierent regions of the world; however, to date, no cases have been reported in Uruguay. The purpose of this research is to assess the presence of herbicide-resistant E. crus-galli in the rice fields of Uruguay. More than 40 E. crus-galli biotypes were sampled from eastern to northern regions in dierent years and assessed following the Herbicide Resistance Action Committee (HRAC) protocols of confirmation, using the herbicides propanil, quinclorac, clomazone, bispyribac?sodium, penoxsulam, imazapyr + imazapic, profoxidim and cyhalofop. Herbicides rates included 0, 0.125, 0.25, 0.50, 1, 2, 4 and 8 times the label rate. Most E. crus-galli biotypes (35) resulted as resistant to quinclorac. Furthermore, resistance was confirmed to propanil in at least seven biotypes, 12 to imazapyr + imazapic, and three to penoxsulam. Five biotypes showed multiple resistance to propanil and quinclorac, and one biotype was resistant to quinclorac, penoxsulam and imazapyr + imazapic. No biotype showed confirmed resistance to clomazone, bispyribac-sodium, cyhalofop or profoxidim?herbicides that ensure satisfactory control. The presence of E. crus-galli herbicide resistant-biotypes reduces herbicide options, threatening rice production in Uruguay. In this context, a redesign of the productive systems would represent an opportunity to complement the chemical control, integrating larger-scale cultural and management practices.https://hdl.handle.net/20.500.12381/1112enenginfo:eu-repo/semantics/openAccessAcceso abiertoRICE (ORYZA SATIVA L.)BARNYARDGRASSPROPANILQUINCLORACPENOXSULAMIMAZAPIR + IMAZAPICFirst report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.ArticlePublishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionreponame:AINFOinstname:Instituto Nacional de Investigación Agropecuariainstacron:Instituto Nacional de Investigación AgropecuariaMARCHESI, C.SALDAIN, N.E.SWORDsword-2022-10-20T22:27:31.original.xmlOriginal SWORD entry documentapplication/octet-stream2715https://redi.anii.org.uy/jspui/bitstream/20.500.12381/1112/1/sword-2022-10-20T22%3a27%3a31.original.xmle1dca6c9c5e292b1a1e5d363998f7a89MD5120.500.12381/11122026-02-10 15:53:40.721oai:redi.anii.org.uy:20.500.12381/1112Institucionalhttps://ainfo.inia.uy/Organismo científico-tecnológicohttp://inia.uyhttps://redi.anii.org.uy/oai/requestlorrego@inia.org.uyUruguayopendoar:2026-02-10T18:53:40AINFO - Instituto Nacional de Investigación Agropecuariafalse
dc.title.none.fl_str_mv First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
title First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
spellingShingle First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
MARCHESI, C.
RICE (ORYZA SATIVA L.)
BARNYARDGRASS
PROPANIL
QUINCLORAC
PENOXSULAM
IMAZAPIR + IMAZAPIC
title_short First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
title_full First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
title_fullStr First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
title_full_unstemmed First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
title_sort First report of herbicide-resistant Echinochloa crus-galli in Uruguayan rice fields.
dc.creator.none.fl_str_mv MARCHESI, C.
SALDAIN, N.E.
author MARCHESI, C.
author_facet MARCHESI, C.
SALDAIN, N.E.
author_role author
author2 SALDAIN, N.E.
author2_role author
dc.subject.none.fl_str_mv RICE (ORYZA SATIVA L.)
BARNYARDGRASS
PROPANIL
QUINCLORAC
PENOXSULAM
IMAZAPIR + IMAZAPIC
topic RICE (ORYZA SATIVA L.)
BARNYARDGRASS
PROPANIL
QUINCLORAC
PENOXSULAM
IMAZAPIR + IMAZAPIC
description Abstract: Echinochloa crus-galli is the main weed in direct dry-seeded rice systems worldwide and is the target of most herbicide applications. Numerous cases of E. crus-galli biotypes with resistance to herbicides have been reported in dierent regions of the world; however, to date, no cases have been reported in Uruguay. The purpose of this research is to assess the presence of herbicide-resistant E. crus-galli in the rice fields of Uruguay. More than 40 E. crus-galli biotypes were sampled from eastern to northern regions in dierent years and assessed following the Herbicide Resistance Action Committee (HRAC) protocols of confirmation, using the herbicides propanil, quinclorac, clomazone, bispyribac?sodium, penoxsulam, imazapyr + imazapic, profoxidim and cyhalofop. Herbicides rates included 0, 0.125, 0.25, 0.50, 1, 2, 4 and 8 times the label rate. Most E. crus-galli biotypes (35) resulted as resistant to quinclorac. Furthermore, resistance was confirmed to propanil in at least seven biotypes, 12 to imazapyr + imazapic, and three to penoxsulam. Five biotypes showed multiple resistance to propanil and quinclorac, and one biotype was resistant to quinclorac, penoxsulam and imazapyr + imazapic. No biotype showed confirmed resistance to clomazone, bispyribac-sodium, cyhalofop or profoxidim?herbicides that ensure satisfactory control. The presence of E. crus-galli herbicide resistant-biotypes reduces herbicide options, threatening rice production in Uruguay. In this context, a redesign of the productive systems would represent an opportunity to complement the chemical control, integrating larger-scale cultural and management practices.
publishDate 2019
dc.date.issued.none.fl_str_mv 2019
dc.date.accessioned.none.fl_str_mv 2022-10-21T01:27:31Z
dc.date.available.none.fl_str_mv 2022-10-21T01:27:31Z
dc.date.updated.none.fl_str_mv 2022-10-21T01:27:31Z
dc.type.none.fl_str_mv Article
PublishedVersion
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instacron:Instituto Nacional de Investigación Agropecuaria
instname_str Instituto Nacional de Investigación Agropecuaria
instacron_str Instituto Nacional de Investigación Agropecuaria
institution Instituto Nacional de Investigación Agropecuaria
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