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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
31/07/2017 |
Actualizado : |
18/10/2017 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
JÁUREGUI, J. M.; MICHELINI, D. F.; AGNUSDEI, M. G.; BAUDRACCO, J.; SEVILLA, J. H.; CHILIBROSTE, P.; LATTANZI, F. |
Afiliación : |
J. M. JÁUREGUI, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza (SF), Argentina; D. F. MICHELINI, Universidad de la República, Centro Universitario Región Litoral Norte, Salto, Uruguay; MÓNICA GRACIELA AGNUSDEI, Instituto Nacional de Tecnologia Agropecuaria Buenos Aires, Estación Experimental Agropecuaria Balcarce, Buenos Aires, Argentina; JAVIER BAUDRACCO, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza (SF), Argentina; J. H. SEVILLA, Instituto Nacional de Tecnología Agropecuaria, Concepción del Uruguay, Argentina; PABLO CHILIBROSTE, Universidad de la República, Estación Experimental Dr. Mario A. Cassinoni, Paysandú, Uruguay; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Persistence of tall fescue in a subtropical environment: tiller survival over summer in response to flowering control and nitrogen supply. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Grass and Forage Science, 72(3):454-466, 2017. |
DOI : |
10.1111/gfs.12252 |
Idioma : |
Inglés |
Notas : |
Article history: Version of record online: 5 September 2016 // Manuscript Revised: 25 July 2016 // Manuscript Received: 12 January 2016 |
Contenido : |
ABSTRACT.
Enhancing pasture persistence is crucial to achieve more sustainable grass-based animal production systems. Although it is known that persistence of perennial ryegrass is based on a high turnover of tillers during late spring and summer, little is known about other forage species, particularly in subtropical climates. To address this question, this study evaluated survival of grazed tall fescue tillers growing in a subtropical climate. We hypothesized that hard tactical grazing during winter to remove reproductive stems (designated as 'flowering control'), and nitrogen fertilization in spring, would both improve tiller survival over summer, and thus enhance tiller density. This was assessed in two experiments. In both experiments, few tillers appeared during late spring and summer and so tiller density depended on the dynamics of vegetative tillers present in the sward in spring. In Experiment 2, flowering control and nitrogen fertilization both enhanced the survival of that critical tiller cohort, but the effects were not additive. Responses were similar but not statistically significant in Experiment 1, which had a warmer, drier summer and lower overall survival rates. Unlike grasses in temperate environments, persistence of tall fescue in this subtropical site appeared to follow a 'vegetative pathway'; i.e., new tillers were produced largely in autumn, from vegetative tillers that survived the summer.
© 2016 John Wiley & Sons Ltd. |
Palabras claves : |
GRAZING INTENSITY; NITROGEN FERTILIZATION; PERSISTENCE; TALL FESCUE; TILLER TURNOVER. |
Asunto categoría : |
-- |
Marc : |
LEADER 02444naa a2200277 a 4500 001 1057426 005 2017-10-18 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1111/gfs.12252$2DOI 100 1 $aJÁUREGUI, J. M. 245 $aPersistence of tall fescue in a subtropical environment$btiller survival over summer in response to flowering control and nitrogen supply.$h[electronic resource] 260 $c2017 500 $aArticle history: Version of record online: 5 September 2016 // Manuscript Revised: 25 July 2016 // Manuscript Received: 12 January 2016 520 $aABSTRACT. Enhancing pasture persistence is crucial to achieve more sustainable grass-based animal production systems. Although it is known that persistence of perennial ryegrass is based on a high turnover of tillers during late spring and summer, little is known about other forage species, particularly in subtropical climates. To address this question, this study evaluated survival of grazed tall fescue tillers growing in a subtropical climate. We hypothesized that hard tactical grazing during winter to remove reproductive stems (designated as 'flowering control'), and nitrogen fertilization in spring, would both improve tiller survival over summer, and thus enhance tiller density. This was assessed in two experiments. In both experiments, few tillers appeared during late spring and summer and so tiller density depended on the dynamics of vegetative tillers present in the sward in spring. In Experiment 2, flowering control and nitrogen fertilization both enhanced the survival of that critical tiller cohort, but the effects were not additive. Responses were similar but not statistically significant in Experiment 1, which had a warmer, drier summer and lower overall survival rates. Unlike grasses in temperate environments, persistence of tall fescue in this subtropical site appeared to follow a 'vegetative pathway'; i.e., new tillers were produced largely in autumn, from vegetative tillers that survived the summer. © 2016 John Wiley & Sons Ltd. 653 $aGRAZING INTENSITY 653 $aNITROGEN FERTILIZATION 653 $aPERSISTENCE 653 $aTALL FESCUE 653 $aTILLER TURNOVER 700 1 $aMICHELINI, D. F. 700 1 $aAGNUSDEI, M. G. 700 1 $aBAUDRACCO, J. 700 1 $aSEVILLA, J. H. 700 1 $aCHILIBROSTE, P. 700 1 $aLATTANZI, F. 773 $tGrass and Forage Science, 72(3):454-466, 2017.
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INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
10/01/2017 |
Tipo de producción científica : |
Boletín de Divulgación |
Autor : |
CAVESTANY, D.; MENDEZ, J. |
Afiliación : |
DANIEL CAVESTANY BOCKING, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN MENDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Manual de inseminación artificial en bovinos |
Fecha de publicación : |
1993 |
Fuente / Imprenta : |
Montevideo (Uruguay): INIA, 1993. |
Páginas : |
86p |
Serie : |
(INIA Boletín de divulgación; 39) |
ISBN : |
9974-556-81-3 |
ISSN : |
1510-7396 |
Idioma : |
Español |
Thesagro : |
CICLO ESTRAL; ENFERMEDADES DEL APARATO GENITAL; FISIOLOGIA ANIMAL; FUNCION FISIOLOGICA; GANADO BOVINO; INSEMINACION ARTIFICIAL; REPRODUCCION DIRIGIDA; REPRODUCTIVIDAD; TRASTORNOS DE LA REPRODUCCION. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/2737/1/111219240807155445.pdf
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Marc : |
LEADER 00752nam a2200265 a 4500 001 1002700 005 2017-01-10 008 1993 bl uuuu u00u1 u #d 020 $a9974-556-81-3 022 $a1510-7396 100 1 $aCAVESTANY, D. 245 $aManual de inseminación artificial en bovinos 260 $aMontevideo (Uruguay): INIA$c1993 300 $a86p 490 $a(INIA Boletín de divulgación; 39) 650 $aCICLO ESTRAL 650 $aENFERMEDADES DEL APARATO GENITAL 650 $aFISIOLOGIA ANIMAL 650 $aFUNCION FISIOLOGICA 650 $aGANADO BOVINO 650 $aINSEMINACION ARTIFICIAL 650 $aREPRODUCCION DIRIGIDA 650 $aREPRODUCTIVIDAD 650 $aTRASTORNOS DE LA REPRODUCCION 700 1 $aMENDEZ, J.
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