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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
06/07/2022 |
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Actualizado : |
06/07/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARQUES, S.; VILA-AIUB, M.; HERNÁNDEZ, M.; KASPARY, T. E.; GARCIA, A. |
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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. |
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Título : |
Cross-and multiple herbicide resistance in Lolium multiflorum across Uruguay. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Weed Research, 2022,1-10. Doi: https://doi.org/10.1111/wre.12545 |
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Serie : |
Online:1365-3180 |
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DOI : |
10.1111/wre.12545 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 1 March 2022/Accepted: 31 May 2022/First Published: 5 July 2022. |
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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 |
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Palabras claves : |
Herbicide-resistant ryegrass; Resistance evolution; Resistance screening; South America. |
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Thesagro : |
CONTROL DE MALEZAS; HERBICIDAS. |
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Asunto categoría : |
H60 Malezas y escardas |
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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
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INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
22/03/2018 |
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Actualizado : |
27/01/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
MENDOZA, A.; CAJARVILLE,C.; REPETTO, J. |
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Afiliación : |
ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CECILIA CAJARVILLE, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, San José, Uruguay.; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Behaviour of cows fed a total mixed ration with different access time to fresh forage. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
New Zealand Journal of Agricultural Research, 2018, v.. 61, no.1. p.102?108. |
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ISSN : |
0028-8233. |
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DOI : |
10.1080/00288233.2017.1395748 |
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Idioma : |
Inglés |
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Notas : |
Article History: Received 14 June 2017// Accepted 20 October 2017. |
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Contenido : |
ABSTRACT:
Nine lactating cows fed a total mixed ration (TMR) were assigned to three 3 × 3 Latin squares with 20-day periods to evaluate the effects
of access time to fresh forage (FF) on behaviour and dry matter intake rate (DMIR). Forage (Lolium multiflorum) was cut daily and
individually offered from 0800 h for 0 (T0), 4 (T4) or 8 (T8) hours of daily access, and a TMR was offered during the remaining time.
Treatments had no effect on the average proportion of time spent eating or ruminating. However, the distribution of behaviours
across time was different among treatments, with T4 and T8 cows spending a high proportion of the available time eating and
achieving a high DMIR only when they had access to TMR. Additional research is warranted to identify strategies that
increase the DMIR of TMR-fed cows when FF is progressively included in their diet. |
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Palabras claves : |
BEHAVIOUR; DAIRY COW; INTAKE RATE; LOLIUM HYBRIDUM; RACIÓN MIXTA TOTAL; TOTAL MIXED RATION. |
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Thesagro : |
COMPORTAMIENTO ANIMAL; FORRAJE SECO; VACAS LECHERAS. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 01772naa a2200289 a 4500
001 1058293
005 2020-01-27
008 2018 bl uuuu u00u1 u #d
022 $a0028-8233.
024 7 $a10.1080/00288233.2017.1395748$2DOI
100 1 $aMENDOZA, A.
245 $aBehaviour of cows fed a total mixed ration with different access time to fresh forage.$h[electronic resource]
260 $c2018
500 $aArticle History: Received 14 June 2017// Accepted 20 October 2017.
520 $aABSTRACT: Nine lactating cows fed a total mixed ration (TMR) were assigned to three 3 × 3 Latin squares with 20-day periods to evaluate the effects of access time to fresh forage (FF) on behaviour and dry matter intake rate (DMIR). Forage (Lolium multiflorum) was cut daily and individually offered from 0800 h for 0 (T0), 4 (T4) or 8 (T8) hours of daily access, and a TMR was offered during the remaining time. Treatments had no effect on the average proportion of time spent eating or ruminating. However, the distribution of behaviours across time was different among treatments, with T4 and T8 cows spending a high proportion of the available time eating and achieving a high DMIR only when they had access to TMR. Additional research is warranted to identify strategies that increase the DMIR of TMR-fed cows when FF is progressively included in their diet.
650 $aCOMPORTAMIENTO ANIMAL
650 $aFORRAJE SECO
650 $aVACAS LECHERAS
653 $aBEHAVIOUR
653 $aDAIRY COW
653 $aINTAKE RATE
653 $aLOLIUM HYBRIDUM
653 $aRACIÓN MIXTA TOTAL
653 $aTOTAL MIXED RATION
700 1 $aCAJARVILLE,C.
700 1 $aREPETTO, J.
773 $tNew Zealand Journal of Agricultural Research, 2018$gv.. 61, no.1. p.102?108.
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