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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
28/02/2024 |
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Actualizado : |
28/02/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
KASPARY, T. E.; WALLER, M.E.; GARCIA, A.; CABRERA, M.; HILL, S.M. |
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Afiliación : |
TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MAURICIO EMANUEL WALLER BARCENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORLANDO MAURICIO CABRERA GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SOFÍA MARQUES HILL, Agricultural Biology Department, Colorado State University, 80011, CO, United States. |
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Título : |
Conyza bonariensis' resistance to glyphosate, diclosulam, and chlorimuron: confirmation and alternative control for the first case of multiple and cross-resistance in Uruguay. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Agronomy. 2024, Volume 14, Issue 1, Article 79. https://doi.org/10.3390/agronomy14010079 -- OPEN ACCESS. |
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ISSN : |
2073-4395 |
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DOI : |
10.3390/agronomy14010079 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submission received 15 November 2023; Revised 25 December 2023; Accepted 26 December 2023; Published: 28 December 2023. -- Correspondence: Kaspary, T.E.; National Agricultural Research Institute of Uruguay (INIA), La Estanzuela, Colonia, Uruguay; email:tkaspary@inia.org.uy -- Academic Editor: Shouhui Wei. -- Funding: This research was funded by Fondo Vaz Ferreira (Ministerio de Educación y Cultura-Uruguay)-Project identification: FVF/2021/013 and the National Agricultural Research Institute of Uruguay-INIA. -- This article belongs to the Topic Weed Resistance to Herbicides: Assessing and Finding Solutions for a Complex Problem (https://www.mdpi.com/topics/weed_resistance ). -- Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). -- |
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Contenido : |
ABSTRACT.- Conyza bonariensis L. (hairy fleabane) is a significant weed in production systems, especially due to its evolving resistance to various herbicides. In Uruguay, control failures of C. bonariensis have been reported following the use of glyphosate and ALS inhibitors. The objective of this study was to investigate the occurrence of the multiple and cross-resistance of C. bonariensis to glyphosate, chlorimuron, and diclosulam, and to assess the efficacy of alternative herbicides against these resistant biotypes. Seeds were collected from sites where plants had survived herbicide applications during the 2019/2020 and 2020/2021 seasons. Following initial screenings, biotypes were selected to establish independent dose-response curves for glyphosate, diclosulam, and chlorimuron. For each herbicide, four biotypes of C. bonariensis were tested: one susceptible (S), two putatively moderately resistant (MR) biotypes, and one putatively highly resistant (R) biotype. In each assay, eight herbicide doses were used (1/32; 1/16; 1/8; 1/2; 1; 2; and 4X for S and MR biotypes, and 1/8; 1/2; 1; 2; 4; 8; and 16X for R biotypes) based on the recommended dose (1x) for each herbicide, with four repetitions per treatment. Each assay was completely replicated twice. Resistance was confirmed through testing in two plant generations (G1 and G2). The findings reveal high levels of multiple and cross-resistance in C. bonariensis to glyphosate, diclosulam, and chlorimuron. In general, herbicides with alternative action mechanisms effectively controlled C. bonariensis exhibiting multiple and cross-resistance. This study confirms the first case of C. bonariensis cross-resistance to diclosulam and chlorimuron, and the first occurrence of multiple and cross-resistance to glyphosate, diclosulam, and chlorimuron in this species. © 2023 by the authors. MenosABSTRACT.- Conyza bonariensis L. (hairy fleabane) is a significant weed in production systems, especially due to its evolving resistance to various herbicides. In Uruguay, control failures of C. bonariensis have been reported following the use of glyphosate and ALS inhibitors. The objective of this study was to investigate the occurrence of the multiple and cross-resistance of C. bonariensis to glyphosate, chlorimuron, and diclosulam, and to assess the efficacy of alternative herbicides against these resistant biotypes. Seeds were collected from sites where plants had survived herbicide applications during the 2019/2020 and 2020/2021 seasons. Following initial screenings, biotypes were selected to establish independent dose-response curves for glyphosate, diclosulam, and chlorimuron. For each herbicide, four biotypes of C. bonariensis were tested: one susceptible (S), two putatively moderately resistant (MR) biotypes, and one putatively highly resistant (R) biotype. In each assay, eight herbicide doses were used (1/32; 1/16; 1/8; 1/2; 1; 2; and 4X for S and MR biotypes, and 1/8; 1/2; 1; 2; 4; 8; and 16X for R biotypes) based on the recommended dose (1x) for each herbicide, with four repetitions per treatment. Each assay was completely replicated twice. Resistance was confirmed through testing in two plant generations (G1 and G2). The findings reveal high levels of multiple and cross-resistance in C. bonariensis to glyphosate, diclosulam, and chlorimuron. In general, herbicid... Presentar Todo |
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Palabras claves : |
ALS inhibitors; ÁREA DE PASTURAS Y FORRAJES - INIA; EPSPS inhibitor; Hairy fleabane; Herbicide resistance; South America; Weeds. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
https://www.mdpi.com/2073-4395/14/1/79/pdf
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Marc : |
LEADER 03745naa a2200289 a 4500
001 1064480
005 2024-02-28
008 2024 bl uuuu u00u1 u #d
022 $a2073-4395
024 7 $a10.3390/agronomy14010079$2DOI
100 1 $aKASPARY, T. E.
245 $aConyza bonariensis' resistance to glyphosate, diclosulam, and chlorimuron$bconfirmation and alternative control for the first case of multiple and cross-resistance in Uruguay.$h[electronic resource]
260 $c2024
500 $aArticle history: Submission received 15 November 2023; Revised 25 December 2023; Accepted 26 December 2023; Published: 28 December 2023. -- Correspondence: Kaspary, T.E.; National Agricultural Research Institute of Uruguay (INIA), La Estanzuela, Colonia, Uruguay; email:tkaspary@inia.org.uy -- Academic Editor: Shouhui Wei. -- Funding: This research was funded by Fondo Vaz Ferreira (Ministerio de Educación y Cultura-Uruguay)-Project identification: FVF/2021/013 and the National Agricultural Research Institute of Uruguay-INIA. -- This article belongs to the Topic Weed Resistance to Herbicides: Assessing and Finding Solutions for a Complex Problem (https://www.mdpi.com/topics/weed_resistance ). -- Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). --
520 $aABSTRACT.- Conyza bonariensis L. (hairy fleabane) is a significant weed in production systems, especially due to its evolving resistance to various herbicides. In Uruguay, control failures of C. bonariensis have been reported following the use of glyphosate and ALS inhibitors. The objective of this study was to investigate the occurrence of the multiple and cross-resistance of C. bonariensis to glyphosate, chlorimuron, and diclosulam, and to assess the efficacy of alternative herbicides against these resistant biotypes. Seeds were collected from sites where plants had survived herbicide applications during the 2019/2020 and 2020/2021 seasons. Following initial screenings, biotypes were selected to establish independent dose-response curves for glyphosate, diclosulam, and chlorimuron. For each herbicide, four biotypes of C. bonariensis were tested: one susceptible (S), two putatively moderately resistant (MR) biotypes, and one putatively highly resistant (R) biotype. In each assay, eight herbicide doses were used (1/32; 1/16; 1/8; 1/2; 1; 2; and 4X for S and MR biotypes, and 1/8; 1/2; 1; 2; 4; 8; and 16X for R biotypes) based on the recommended dose (1x) for each herbicide, with four repetitions per treatment. Each assay was completely replicated twice. Resistance was confirmed through testing in two plant generations (G1 and G2). The findings reveal high levels of multiple and cross-resistance in C. bonariensis to glyphosate, diclosulam, and chlorimuron. In general, herbicides with alternative action mechanisms effectively controlled C. bonariensis exhibiting multiple and cross-resistance. This study confirms the first case of C. bonariensis cross-resistance to diclosulam and chlorimuron, and the first occurrence of multiple and cross-resistance to glyphosate, diclosulam, and chlorimuron in this species. © 2023 by the authors.
653 $aALS inhibitors
653 $aÁREA DE PASTURAS Y FORRAJES - INIA
653 $aEPSPS inhibitor
653 $aHairy fleabane
653 $aHerbicide resistance
653 $aSouth America
653 $aWeeds
700 1 $aWALLER, M.E.
700 1 $aGARCIA, A.
700 1 $aCABRERA, M.
700 1 $aHILL, S.M.
773 $tAgronomy. 2024, Volume 14, Issue 1, Article 79. https://doi.org/10.3390/agronomy14010079 -- OPEN ACCESS.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
09/11/2022 |
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Actualizado : |
10/11/2022 |
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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 : |
RAMA, G.; OYARZABAL, M.; CARDOZO, G.; LEZAMA, F.; BAEZA, S. |
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Afiliación : |
GONZALO RAMA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales.; MARIANO OYARZABAL, Universidad de Buenos Aires, Faculta de Agronomía, IFEVA, CONICET, Argentina.; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FELIPE LEZAMA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales.; SANTIAGO BAEZA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales. |
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Título : |
Legume overseeding along with P fertilization increase forage production of temperate natural grasslands. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agronomy, 2022, volume 12, issue 10, e2507. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12102507 |
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DOI : |
10.3390/agronomy12102507 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 8 September 2022 / Revised: 6 October 2022 / Accepted: 8 October 2022 / Published: 14 October 2022. (This article belongs to the Special Issue Advance in Grassland Productivity and Sustainability). This is an open access article distributed under the Creative Commons Attribution License.
Correspondence: agonzalorama@gmail.com |
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Contenido : |
Legume overseeding along with P fertilization is a common practice used in natural temperate and subtropical grasslands to increase forage production. This practice has been evaluated at experimental plots but not at the paddocks level of commercial farms. The latter are realistic evaluation units to generate knowledge for livestock management. In this study, the enhanced vegetation index (EVI), a proxy of forage production, was used to evaluate the effect of this practice on grazed paddocks in Uruguay. Twenty paired paddocks under similar grazing conditions were selected with natural grassland (NG) and natural grassland with legume overseeding and P fertilization (NG-LP). Paired paddocks were compared in terms of EVI mean and its temporal variability. After nine years of the intensification practice, mean annual EVI of NG-LP was 4% higher than that of NG, while the mean winter?spring EVI of NG-LP was 7.5% higher. EVI intra- and inter-annual variability of NG-LP was 8?11% higher than that of NG. Additionally, forage production was estimated using a radiative transfer model. Differences between NG-LP and NG were amplified six to seven times. Legume overseeding along with P fertilization increased forage production in pastoral livestock paddocks, particularly in the period of forage deficit, while it also increased intra and inter-annual variability of forage production. |
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Palabras claves : |
FERTILIZACION FOSFATADA; FORAGE PRODUCTION; INTENSIFICATION; NATURAL GRASSLAND; SUBTROPICAL PASTURES. |
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Asunto categoría : |
F62 Fisiología de la planta - Crecimiento y desarrollo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16837/1/agronomy-12-02507-2022-Rama.pdf
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Marc : |
LEADER 02545naa a2200253 a 4500
001 1063715
005 2022-11-10
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3390/agronomy12102507$2DOI
100 1 $aRAMA, G.
245 $aLegume overseeding along with P fertilization increase forage production of temperate natural grasslands.$h[electronic resource]
260 $c2022
500 $aArticle history: Received: 8 September 2022 / Revised: 6 October 2022 / Accepted: 8 October 2022 / Published: 14 October 2022. (This article belongs to the Special Issue Advance in Grassland Productivity and Sustainability). This is an open access article distributed under the Creative Commons Attribution License. Correspondence: agonzalorama@gmail.com
520 $aLegume overseeding along with P fertilization is a common practice used in natural temperate and subtropical grasslands to increase forage production. This practice has been evaluated at experimental plots but not at the paddocks level of commercial farms. The latter are realistic evaluation units to generate knowledge for livestock management. In this study, the enhanced vegetation index (EVI), a proxy of forage production, was used to evaluate the effect of this practice on grazed paddocks in Uruguay. Twenty paired paddocks under similar grazing conditions were selected with natural grassland (NG) and natural grassland with legume overseeding and P fertilization (NG-LP). Paired paddocks were compared in terms of EVI mean and its temporal variability. After nine years of the intensification practice, mean annual EVI of NG-LP was 4% higher than that of NG, while the mean winter?spring EVI of NG-LP was 7.5% higher. EVI intra- and inter-annual variability of NG-LP was 8?11% higher than that of NG. Additionally, forage production was estimated using a radiative transfer model. Differences between NG-LP and NG were amplified six to seven times. Legume overseeding along with P fertilization increased forage production in pastoral livestock paddocks, particularly in the period of forage deficit, while it also increased intra and inter-annual variability of forage production.
653 $aFERTILIZACION FOSFATADA
653 $aFORAGE PRODUCTION
653 $aINTENSIFICATION
653 $aNATURAL GRASSLAND
653 $aSUBTROPICAL PASTURES
700 1 $aOYARZABAL, M.
700 1 $aCARDOZO, G.
700 1 $aLEZAMA, F.
700 1 $aBAEZA, S.
773 $tAgronomy, 2022, volume 12, issue 10, e2507. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12102507
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