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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
03/09/2020 |
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Actualizado : |
03/09/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
ERRECART, P,M.; MARINO, M.A.; AGNUSDEI, M.G.; LATTANZI, F.; DURAND, J-L |
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Afiliación : |
PEDRO MANUEL ERRECART, Unidad Integrada Balcarce (Instituto Nacional de Tecnología Agropecuaria EEA Balcarce-Facultad de Ciencias Agrarias Universidad Nacional de Mar del Plata), Ruta Nacional 226 km 73.5, Balcarce, Argentina.; MARÍA ALEJANDRA MARINO, Unidad Integrada Balcarce (Instituto Nacional de Tecnología Agropecuaria EEA Balcarce-Facultad de Ciencias Agrarias Universidad Nacional de Mar del Plata), Ruta Nacional 226 km 73.5, Balcarce, Argentina.; MÓNICA GRACIELA AGNUSDEI, Unidad Integrada Balcarce (Instituto Nacional de Tecnología Agropecuaria EEA Balcarce-Facultad de Ciencias Agrarias Universidad Nacional de Mar del Plata), Ruta Nacional 226 km 73.5, Balcarce, Argentina.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JEAN-LOUIS DURAND, Unité de Recherche Pluridisciplinaire Prairies Plantes Fourragères (URP3F), INRA, Route de Saintes, Lusignan, France. |
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Título : |
The intensity of water stress dictates whether the N status of temperate-type perennial grass swards is affected by drought. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Field Crops Research, 15 October 2020, Volume 257, Article number 107928. Doi: https://doi.org/10.1016/j.fcr.2020.107928 |
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DOI : |
10.1016/j.fcr.2020.107928 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 28 February 2020/ Received in revised form 23 July 2020/ Accepted 27 July 2020. Corresponding author:
E-mail address: errecart.pedro@inta.gob.ar (P.M. Errecart). |
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Contenido : |
Abstract:Temperate-type, summer-active cool-season perennial grasses are frequently exposed to dry spells during the warm season due to the high atmospheric demand and fast soil desiccation. Since water availability is essential for sward nitrogen (N) uptake and most mineral N is located in the topsoil, water stress may hinder sward N nutrition if it reduces N supply. In hydro-halomorphic soils, imbalances between soil N supply and sward N demand during summer could be further aggravated by, first, the limited water holding capacity of the topsoil, and second, potential availability of water from deep, N-poor soil horizons that are kept moist by a shallow water table. The aim of this work was to quantify the effect of N and water availability on N status and productivity of temperate-type perennial swards growing in a hydro-halomorphic soil of the Flooding Pampa. During two consecutive years, shoot and root dynamics, as well as radiation capture, N nutrition index (NNI), soil water availability and leaf water potential were followed over six weeks long mid-summer regrowths of old stands (>9 years) of temperate-type tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] sown on a typical Natraqualf soil in Balcarce, Argentina. Swards were either rainfed or irrigated and fertilized with either 40 or 200 kg de N ha?1. Root systems were large (5.8?9.3 Mg DM roots ha?1), but concentrated mostly in the 0.2 m topsoil (66%?75% of root biomass or length). Despite invariably high available water below 0.4 m throughout both experimental periods, rainfed swards faced transient episodes of water stress whenever the upper soil layer dried out. Tall fescue swards were strongly co-limited by water and N during summer, showing comparable, very high responses to both N addition and irrigation. Further, forage yield showed synergistic increases when swards received both supplemental water and N simultaneously. This was mainly due to consistent synergistic responses in radiation use efficiency and leaf lifespan. Sward NNI was depressed only by an historically severe drought but was not altered when water stress intensity was lower, close to average for the season in the area. Therefore, the major causes of typically low summer productivity of temperate-type tall fescue growing in hydro-halomorphic soils of the Flooding Pampa are the intrinsic effects of low N and low water availability, with only uncommonly extreme water stress episodes reducing yield indirectly through an aggravation of crop N status. MenosAbstract:Temperate-type, summer-active cool-season perennial grasses are frequently exposed to dry spells during the warm season due to the high atmospheric demand and fast soil desiccation. Since water availability is essential for sward nitrogen (N) uptake and most mineral N is located in the topsoil, water stress may hinder sward N nutrition if it reduces N supply. In hydro-halomorphic soils, imbalances between soil N supply and sward N demand during summer could be further aggravated by, first, the limited water holding capacity of the topsoil, and second, potential availability of water from deep, N-poor soil horizons that are kept moist by a shallow water table. The aim of this work was to quantify the effect of N and water availability on N status and productivity of temperate-type perennial swards growing in a hydro-halomorphic soil of the Flooding Pampa. During two consecutive years, shoot and root dynamics, as well as radiation capture, N nutrition index (NNI), soil water availability and leaf water potential were followed over six weeks long mid-summer regrowths of old stands (>9 years) of temperate-type tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] sown on a typical Natraqualf soil in Balcarce, Argentina. Swards were either rainfed or irrigated and fertilized with either 40 or 200 kg de N ha?1. Root systems were large (5.8?9.3 Mg DM roots ha?1), but concentrated mostly in the 0.2 m topsoil (66%?75% of root biomass or length). Despite invariably high availa... Presentar Todo |
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Thesagro : |
ESTRES HIDRICO; NITROGEN. |
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NAL Tesauro : |
FORAGE YIELD; NITROGEN NUTRITION INDEX; RESOURCE CO-LIMITATION; ROOTS; WATER-NITROGEN INTERACTION. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03615naa a2200277 a 4500
001 1061293
005 2020-09-03
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1016/j.fcr.2020.107928$2DOI
100 1 $aERRECART, P,M.
245 $aThe intensity of water stress dictates whether the N status of temperate-type perennial grass swards is affected by drought.$h[electronic resource]
260 $c2020
500 $aArticle history: Received 28 February 2020/ Received in revised form 23 July 2020/ Accepted 27 July 2020. Corresponding author: E-mail address: errecart.pedro@inta.gob.ar (P.M. Errecart).
520 $aAbstract:Temperate-type, summer-active cool-season perennial grasses are frequently exposed to dry spells during the warm season due to the high atmospheric demand and fast soil desiccation. Since water availability is essential for sward nitrogen (N) uptake and most mineral N is located in the topsoil, water stress may hinder sward N nutrition if it reduces N supply. In hydro-halomorphic soils, imbalances between soil N supply and sward N demand during summer could be further aggravated by, first, the limited water holding capacity of the topsoil, and second, potential availability of water from deep, N-poor soil horizons that are kept moist by a shallow water table. The aim of this work was to quantify the effect of N and water availability on N status and productivity of temperate-type perennial swards growing in a hydro-halomorphic soil of the Flooding Pampa. During two consecutive years, shoot and root dynamics, as well as radiation capture, N nutrition index (NNI), soil water availability and leaf water potential were followed over six weeks long mid-summer regrowths of old stands (>9 years) of temperate-type tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] sown on a typical Natraqualf soil in Balcarce, Argentina. Swards were either rainfed or irrigated and fertilized with either 40 or 200 kg de N ha?1. Root systems were large (5.8?9.3 Mg DM roots ha?1), but concentrated mostly in the 0.2 m topsoil (66%?75% of root biomass or length). Despite invariably high available water below 0.4 m throughout both experimental periods, rainfed swards faced transient episodes of water stress whenever the upper soil layer dried out. Tall fescue swards were strongly co-limited by water and N during summer, showing comparable, very high responses to both N addition and irrigation. Further, forage yield showed synergistic increases when swards received both supplemental water and N simultaneously. This was mainly due to consistent synergistic responses in radiation use efficiency and leaf lifespan. Sward NNI was depressed only by an historically severe drought but was not altered when water stress intensity was lower, close to average for the season in the area. Therefore, the major causes of typically low summer productivity of temperate-type tall fescue growing in hydro-halomorphic soils of the Flooding Pampa are the intrinsic effects of low N and low water availability, with only uncommonly extreme water stress episodes reducing yield indirectly through an aggravation of crop N status.
650 $aFORAGE YIELD
650 $aNITROGEN NUTRITION INDEX
650 $aRESOURCE CO-LIMITATION
650 $aROOTS
650 $aWATER-NITROGEN INTERACTION
650 $aESTRES HIDRICO
650 $aNITROGEN
700 1 $aMARINO, M.A.
700 1 $aAGNUSDEI, M.G.
700 1 $aLATTANZI, F.
700 1 $aDURAND, J-L
773 $tField Crops Research, 15 October 2020, Volume 257, Article number 107928. Doi: https://doi.org/10.1016/j.fcr.2020.107928
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
06/06/2018 |
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Actualizado : |
20/02/2019 |
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Tipo de producción científica : |
Documentos |
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Autor : |
CIAPPESONI, G.; GIMENO, D.; DE BARBIERI, I.; MONTOSSI, F.; GRATTAROLA, M.; MEDEROS, A. |
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Afiliación : |
CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; AMERICA ESTHER MEDEROS SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evaluación genética poblacional: Caracterización de los animales del Núcleo que se entregan (475). |
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Fecha de publicación : |
2006 |
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Fuente / Imprenta : |
In: INIA Tacuarembó. Unidad Experimental Glencoe. Avances obtenidos en el Proyecto Merino Fino del Uruguay: núcleo fundacional Unidad Experimental Glencoe, 1999-2006. Paysandú, 19 diciembre, 2006. Tacuarembó (Uruguay): INIA, 2006. |
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Páginas : |
p. 54-78 |
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Serie : |
(INIA Serie Actividades de Difusión ; 475) |
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Idioma : |
Español |
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Contenido : |
La identificación de reproductores superiores es de vital importancia en la producción pecuaria por el impacto que estos tienen en la obtención del producto deseado, particularmente en la producción de Merino Fino y Superfino. Los padres normalmente contribuyen con más de un 80% de la ganancia genética de una majada si consideramos que cada uno tiene la capacidad de aparearse con un número elevado de vientres. El Proyecto Merino Fino, llevado adelante por la Sociedad de Criadores de Merino Australiano del Uruguay, el INIA y el Secretariado Uruguayo de la Lana (SUL), apunta a la generación y distribución de padres superiores que cumplan con el objetivo de incrementar la producción de lanas finas y superfinas y por tanto aumentar la rentabilidad de la producción. Los resultados aquí presentados provienen de la Quinta Evaluación Genética Poblacional de la Raza Merino Australiano del Uruguay, a partir de la información de las Centrales de Prueba de Progenie (1995-2000), de las Cabañas participantes del Proyecto Merino Fino Fase I (1995-2006) y del Núcleo Fundacional U.E. "Glencoe"- NFG (generaciones 1999-2005). En ésta fueron evaluados más de 13.000 datos productivos y 21.100 animales. |
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Palabras claves : |
SHEEP. |
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Thesagro : |
MERINO. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10034/1/SAD-475p54-78.pdf
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Marc : |
LEADER 02057naa a2200229 a 4500
001 1058672
005 2019-02-20
008 2006 bl uuuu u00u1 u #d
100 1 $aCIAPPESONI, G.
245 $aEvaluación genética poblacional$bCaracterización de los animales del Núcleo que se entregan (475).
260 $c2006
300 $ap. 54-78
490 $a(INIA Serie Actividades de Difusión ; 475)
520 $aLa identificación de reproductores superiores es de vital importancia en la producción pecuaria por el impacto que estos tienen en la obtención del producto deseado, particularmente en la producción de Merino Fino y Superfino. Los padres normalmente contribuyen con más de un 80% de la ganancia genética de una majada si consideramos que cada uno tiene la capacidad de aparearse con un número elevado de vientres. El Proyecto Merino Fino, llevado adelante por la Sociedad de Criadores de Merino Australiano del Uruguay, el INIA y el Secretariado Uruguayo de la Lana (SUL), apunta a la generación y distribución de padres superiores que cumplan con el objetivo de incrementar la producción de lanas finas y superfinas y por tanto aumentar la rentabilidad de la producción. Los resultados aquí presentados provienen de la Quinta Evaluación Genética Poblacional de la Raza Merino Australiano del Uruguay, a partir de la información de las Centrales de Prueba de Progenie (1995-2000), de las Cabañas participantes del Proyecto Merino Fino Fase I (1995-2006) y del Núcleo Fundacional U.E. "Glencoe"- NFG (generaciones 1999-2005). En ésta fueron evaluados más de 13.000 datos productivos y 21.100 animales.
650 $aMERINO
653 $aSHEEP
700 1 $aGIMENO, D.
700 1 $aDE BARBIERI, I.
700 1 $aMONTOSSI, F.
700 1 $aGRATTAROLA, M.
700 1 $aMEDEROS, A.
773 $tIn: INIA Tacuarembó. Unidad Experimental Glencoe. Avances obtenidos en el Proyecto Merino Fino del Uruguay: núcleo fundacional Unidad Experimental Glencoe, 1999-2006. Paysandú, 19 diciembre, 2006. Tacuarembó (Uruguay): INIA, 2006.
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