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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
26/02/2024 |
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Actualizado : |
26/02/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
JÁUREGUI, J.M.; MICHELINI, D.F.; SEVILLA, G.H.; BERHONGARAY, G.; BERONE, G.D.; BAUDRACCO, J.; CHILIBROSTE, P.; AGNUSDEI, M.G.; LATTANZI, F. |
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Afiliación : |
J. M JÁUREGUI, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza, Argentina; Livestock Division, Datamars SA, Lamone, Switzerland; D. F. MICHELINI, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Salto, Uruguay; G. H. SEVILLA, Estación Experimental Agropecuaria Concepción de Uruguay, Instituto Nacional de Tecnología Agropecuaria, Entre Ríos, Concepción del Uruguay, Argentina; G. BERHONGARAY, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza, Argentina; ICiAgro Litoral, Universidad Nacional del Litoral-CONICET, Santa Fe, Argentina; G. D. BERONE, Estación Experimental Agropecuaria Balcarce, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Balcarce, Argentina; Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; J. BAUDRACCO, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza, Argentina; ICiAgro Litoral, Universidad Nacional del Litoral-CONICET, Santa Fe, Argentina; PABLO CHILIBROSTE SYMONDS, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; M. G. AGNUSDEI, Estación Experimental Agropecuaria Balcarce, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Balcarce, Argentina; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Tall fescue tiller survival over summer in a subtropical environment: The role of the size and depth of root systems. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Journal of Agronomy and Crop Science. 2024, Volume 210, Issue 1, article e12682. https://doi.org/10.1111/jac.12682 |
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ISSN : |
0931-2250 |
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DOI : |
10.1111/jac.12682 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 May 2023; Revised 20 October 2023; Accepted 1 November 2023. -- Correspondence: J. M. Jáuregui, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza, Argentina. Email: josemartinjauregui@gmail.com -- Funding information:
Consejo Nacional de Investigaciones Científicas y Técnicas. -- |
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Contenido : |
ABSTRACT.- Pasture persistence is a key determinant of the economic and environmental performance of pastoral animal production systems. Large and deep root systems that help resist summer water stress have been proposed as a relevant trait for vegetative persistence of perennial temperate forage species growing in subtropical climates or under future climatically challenging scenarios. In a previous study [Jauregui et al., 2017. Persistence of tall fescue in a subtropical environment: Tiller survival over summer in response to flowering control and nitrogen supply. Grass and Forage Science 72, 454-466] we have shown that nitrogen fertilization and grazing management aimed at 'control flowering' increased the survival of tall fescue tillers during harsh summers in Uruguay (lat. 32°S). Here we assessed: (i) to what extent tiller survival is mediated by root system size in spring and (ii) what consequences tiller survival entails for root mass, depth and morphology the following autumn. In two field experiments, significant increases in tiller survival in response to nitrogen fertilization and grazing management (+60% and +80% in 2011/12 and 2012/13, respectively) were not related to concomitant effects on the size or depth of the root system in spring (p >.10). Even when six-fold within-treatment variation in root mass was observed, within-treatment variation in summer tiller survival was little affected (<15%, p =.08). In turn, differences in tiller survival over summer affected little root system characteristics the following autumn. Therefore, we found scant support for the hypothesis that large and deep root systems contribute to survival of tall fescue tillers in this subtropical humid climate. Except for soils with less than 30 mm of plant available water holding capacity, summer water deficits did not induce severe tiller mortality in tall fescue in this climate. © 2024 Wiley-VCH GmbH. Published by John Wiley & Sons Ltd. MenosABSTRACT.- Pasture persistence is a key determinant of the economic and environmental performance of pastoral animal production systems. Large and deep root systems that help resist summer water stress have been proposed as a relevant trait for vegetative persistence of perennial temperate forage species growing in subtropical climates or under future climatically challenging scenarios. In a previous study [Jauregui et al., 2017. Persistence of tall fescue in a subtropical environment: Tiller survival over summer in response to flowering control and nitrogen supply. Grass and Forage Science 72, 454-466] we have shown that nitrogen fertilization and grazing management aimed at 'control flowering' increased the survival of tall fescue tillers during harsh summers in Uruguay (lat. 32°S). Here we assessed: (i) to what extent tiller survival is mediated by root system size in spring and (ii) what consequences tiller survival entails for root mass, depth and morphology the following autumn. In two field experiments, significant increases in tiller survival in response to nitrogen fertilization and grazing management (+60% and +80% in 2011/12 and 2012/13, respectively) were not related to concomitant effects on the size or depth of the root system in spring (p >.10). Even when six-fold within-treatment variation in root mass was observed, within-treatment variation in summer tiller survival was little affected (<15%, p =.08). In turn, differences in tiller survival over summer affe... Presentar Todo |
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Palabras claves : |
Forage; Grazing management; Heat stress; Nitrogen fertilisation; Partnership for the goals - Goal 17; Pasture persistence; Sustainable Development Goals (SDGs). |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03371naa a2200337 a 4500
001 1064473
005 2024-02-26
008 2024 bl uuuu u00u1 u #d
022 $a0931-2250
024 7 $a10.1111/jac.12682$2DOI
100 1 $aJÁUREGUI, J.M.
245 $aTall fescue tiller survival over summer in a subtropical environment$bThe role of the size and depth of root systems.$h[electronic resource]
260 $c2024
500 $aArticle history: Received 5 May 2023; Revised 20 October 2023; Accepted 1 November 2023. -- Correspondence: J. M. Jáuregui, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza, Argentina. Email: josemartinjauregui@gmail.com -- Funding information: Consejo Nacional de Investigaciones Científicas y Técnicas. --
520 $aABSTRACT.- Pasture persistence is a key determinant of the economic and environmental performance of pastoral animal production systems. Large and deep root systems that help resist summer water stress have been proposed as a relevant trait for vegetative persistence of perennial temperate forage species growing in subtropical climates or under future climatically challenging scenarios. In a previous study [Jauregui et al., 2017. Persistence of tall fescue in a subtropical environment: Tiller survival over summer in response to flowering control and nitrogen supply. Grass and Forage Science 72, 454-466] we have shown that nitrogen fertilization and grazing management aimed at 'control flowering' increased the survival of tall fescue tillers during harsh summers in Uruguay (lat. 32°S). Here we assessed: (i) to what extent tiller survival is mediated by root system size in spring and (ii) what consequences tiller survival entails for root mass, depth and morphology the following autumn. In two field experiments, significant increases in tiller survival in response to nitrogen fertilization and grazing management (+60% and +80% in 2011/12 and 2012/13, respectively) were not related to concomitant effects on the size or depth of the root system in spring (p >.10). Even when six-fold within-treatment variation in root mass was observed, within-treatment variation in summer tiller survival was little affected (<15%, p =.08). In turn, differences in tiller survival over summer affected little root system characteristics the following autumn. Therefore, we found scant support for the hypothesis that large and deep root systems contribute to survival of tall fescue tillers in this subtropical humid climate. Except for soils with less than 30 mm of plant available water holding capacity, summer water deficits did not induce severe tiller mortality in tall fescue in this climate. © 2024 Wiley-VCH GmbH. Published by John Wiley & Sons Ltd.
653 $aForage
653 $aGrazing management
653 $aHeat stress
653 $aNitrogen fertilisation
653 $aPartnership for the goals - Goal 17
653 $aPasture persistence
653 $aSustainable Development Goals (SDGs)
700 1 $aMICHELINI, D.F.
700 1 $aSEVILLA, G.H.
700 1 $aBERHONGARAY, G.
700 1 $aBERONE, G.D.
700 1 $aBAUDRACCO, J.
700 1 $aCHILIBROSTE, P.
700 1 $aAGNUSDEI, M.G.
700 1 $aLATTANZI, F.
773 $tJournal of Agronomy and Crop Science. 2024, Volume 210, Issue 1, article e12682. https://doi.org/10.1111/jac.12682
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| 77. | | BERNASCHINA, Y.; CONDE, P.; ALANIZ, S.; LEONI, C. Evaluación del comportamiento de cultivares de olivo (Olea europaea) por su susceptibilidad a Venturia oleaginea en Uruguay. [03]. Bloque 1: Detección y caracterización de plagas y enfermedades. In: Sociedad Uruguaya de Fitopatología Jornada Uruguaya de Fitopatología, 4., Jornada Uruguaya de Protección Vegetal, 2., 1° setiembre, 2017, Montevideo, Uruguay. Libro de resúmenes. Montevideo (UY): Sociedad Uruguay de Fitopatología (SUFIT), 2017. p. 14. Financiamiento: Beca ANII de Maestría, INIA Proyecto FR-13 "Comportamiento agronómico de variedades de olivo y desarrollo de técnicas de cultivo aplicables a condiciones agroecológicas de Uruguay".| Tipo: Abstracts/Resúmenes |
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