|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha : |
06/07/2022 |
|
Actualizado : |
06/07/2022 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
MARQUES, S.; VILA-AIUB, M.; HERNÁNDEZ, M.; KASPARY, T. E.; GARCIA, A. |
|
Afiliación : |
SOFÍA MARQUES HILL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN VILA-AIUB, IFEVA -CONICET.Faculty of Agronomy, Department of Ecology, University of Buenos Aires (UBA), Buenos Aires, Argentina.; MANUEL HERNÁNDEZ, School of Agronomy, University of the Republic of Uruguay, Montevideo, Uruguay.; TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Cross-and multiple herbicide resistance in Lolium multiflorum across Uruguay. |
|
Fecha de publicación : |
2022 |
|
Fuente / Imprenta : |
Weed Research, 2022,1-10. Doi: https://doi.org/10.1111/wre.12545 |
|
Serie : |
Online:1365-3180 |
|
DOI : |
10.1111/wre.12545 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received: 1 March 2022/Accepted: 31 May 2022/First Published: 5 July 2022. |
|
Contenido : |
Abstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations.
However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resistance in LOLMU is widespread in agricultural regions of Uruguay and that significant number of multiple resistance cases already exist and are expected to increase rapidly if management practices are not adjusted quickly and substantially.This survey represents a key input to improve herbicide-resistant LOLMU management strategies. MenosAbstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations.
However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resista... Presentar Todo |
|
Palabras claves : |
Herbicide-resistant ryegrass; Resistance evolution; Resistance screening; South America. |
|
Thesagro : |
CONTROL DE MALEZAS; HERBICIDAS. |
|
Asunto categoría : |
H60 Malezas y escardas |
|
Marc : |
LEADER 02727naa a2200277 a 4500
001 1063406
005 2022-07-06
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1111/wre.12545$2DOI
100 1 $aMARQUES, S.
245 $aCross-and multiple herbicide resistance in Lolium multiflorum across Uruguay.$h[electronic resource]
260 $c2022
490 $aOnline:1365-3180
500 $aArticle history: Received: 1 March 2022/Accepted: 31 May 2022/First Published: 5 July 2022.
520 $aAbstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations. However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resistance in LOLMU is widespread in agricultural regions of Uruguay and that significant number of multiple resistance cases already exist and are expected to increase rapidly if management practices are not adjusted quickly and substantially.This survey represents a key input to improve herbicide-resistant LOLMU management strategies.
650 $aCONTROL DE MALEZAS
650 $aHERBICIDAS
653 $aHerbicide-resistant ryegrass
653 $aResistance evolution
653 $aResistance screening
653 $aSouth America
700 1 $aVILA-AIUB, M.
700 1 $aHERNÁNDEZ, M.
700 1 $aKASPARY, T. E.
700 1 $aGARCIA, A.
773 $tWeed Research, 2022,1-10. Doi: https://doi.org/10.1111/wre.12545
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
