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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
04/04/2016 |
Actualizado : |
04/04/2016 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
GLISON, N.; GONZÁLEZ BARRIOS, P.; CORREA, E.; VIEGA, L.; SALDANHA, S.; REYNO, R.; MUSACCHIO, E.; RUSH, P.; SCHRAUF, G.; SPERANZA, P. |
Afiliación : |
UNIVERSIDAD DE LA REPÚBLICA (UDELAR)/ FACULTAD DE AGRONOMÍA; UNIVERSIDAD DE LA REPÚBLICA (UDELAR)/ FACULTAD DE AGRONOMÍA; UNIVERSIDAD DE LA REPÚBLICA (UDELAR)/ FACULTAD DE AGRONOMÍA; UNIVERSIDAD DE LA REPÚBLICA (UDELAR)/ FACULTAD DE AGRONOMÍA; Universidad de la República (UdelaR)/ Facultad de Agronomía - Regional Norte (Salto); RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FACULTAD DE AGRONOMÍA, UNIVERSIDAD DE BUENOS AIRES.; FACULTAD DE AGRONOMÍA, UNIVERSIDAD DE BUENOS AIRES.; FACULTAD DE AGRONOMÍA, UNIVERSIDAD DE BUENOS AIRES.; UNIVERSIDAD DE LA REPÚBLICA (UDELAR)/ FACULTAD DE AGRONOMÍA. |
Título : |
Responses of seedling emergence of three Paspalum species to environmental factors. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
In: International Symposium of Forage Breeding (5., Buenos Aires, AR), 19-21 Octubre, 2015. Abstract. |
Idioma : |
Inglés |
Contenido : |
In the warm?temperate regions of Uruguay and Argentina, the adoption of warm?season perennial grasses has been very limited. Slow and unpredictable establishment has been perceived as one of the most limiting factors for their use either as pure stands or in mixtures with cool season grasses. Among the best studied species are P. dilatatum and related species and P. notatum. In this study we analyzed a network of locations and sowing dates to understand the responses of these species to environmental factors and determine appropriate sowing dates. We evaluated a single clone or inbred line of P. dilatatum cv. Chirú, P. dilatatum ssp. flavescens, P. urvillei and P. notatum. Trials were established for two years in Montevideo, Salto and Tacuarembó in Uruguay and Buenos Aires in Argentina. In each location plots of three lines of 1.2 m were arranged in a split?split plot design with three replicates. Genotypes were randomized within dates within irrigated or non?irrigated main plots. Sowing dates were classified as early and late fall and spring (March, April, September and November, respectively). Based on the initial number of viable seeds, proportions of established plants were recorded 30 days after sowing. The ranking of the four genotypes was stable across environments (Chirú > Flavescens > Notatum > Urvillei) and the effect of irrigation was also significant on all of them. In non?irrigated plots emergence was mostly positively associated with cumulative rainfall and negatively associated to mean temperature. On irrigated plots on the other hand, rainfall did not show any effect and the response to mean temperature was best described by a bilinear function which reached its maximum at approximately 20ºC. These results suggest that this set of species may exhibit secondary dormancy at higher mean temperatures. A weak association between establishment and thermal amplitude was found for most genotypes, especially P. urvillei. In general early sowing dates showed the higher establishment ratios both for the fall and the spring. A better adjustment of sowing dates and selection for low?dormancy genotypes like Chirú, may facilitate the adoption of Paspalum species in this region. MenosIn the warm?temperate regions of Uruguay and Argentina, the adoption of warm?season perennial grasses has been very limited. Slow and unpredictable establishment has been perceived as one of the most limiting factors for their use either as pure stands or in mixtures with cool season grasses. Among the best studied species are P. dilatatum and related species and P. notatum. In this study we analyzed a network of locations and sowing dates to understand the responses of these species to environmental factors and determine appropriate sowing dates. We evaluated a single clone or inbred line of P. dilatatum cv. Chirú, P. dilatatum ssp. flavescens, P. urvillei and P. notatum. Trials were established for two years in Montevideo, Salto and Tacuarembó in Uruguay and Buenos Aires in Argentina. In each location plots of three lines of 1.2 m were arranged in a split?split plot design with three replicates. Genotypes were randomized within dates within irrigated or non?irrigated main plots. Sowing dates were classified as early and late fall and spring (March, April, September and November, respectively). Based on the initial number of viable seeds, proportions of established plants were recorded 30 days after sowing. The ranking of the four genotypes was stable across environments (Chirú > Flavescens > Notatum > Urvillei) and the effect of irrigation was also significant on all of them. In non?irrigated plots emergence was mostly positively associated with cumulative rainfall and neg... Presentar Todo |
Thesagro : |
ARGENTINA; PASPALUM; PASTURAS; SIEMBRA; URUGUAY. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5609/1/Symposium-REYNO-2015-BS-AS.pdf
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Marc : |
LEADER 03017nam a2200277 a 4500 001 1054583 005 2016-04-04 008 2015 bl uuuu u01u1 u #d 100 1 $aGLISON, N. 245 $aResponses of seedling emergence of three Paspalum species to environmental factors.$h[electronic resource] 260 $aIn: International Symposium of Forage Breeding (5., Buenos Aires, AR), 19-21 Octubre, 2015. Abstract.$c2015 520 $aIn the warm?temperate regions of Uruguay and Argentina, the adoption of warm?season perennial grasses has been very limited. Slow and unpredictable establishment has been perceived as one of the most limiting factors for their use either as pure stands or in mixtures with cool season grasses. Among the best studied species are P. dilatatum and related species and P. notatum. In this study we analyzed a network of locations and sowing dates to understand the responses of these species to environmental factors and determine appropriate sowing dates. We evaluated a single clone or inbred line of P. dilatatum cv. Chirú, P. dilatatum ssp. flavescens, P. urvillei and P. notatum. Trials were established for two years in Montevideo, Salto and Tacuarembó in Uruguay and Buenos Aires in Argentina. In each location plots of three lines of 1.2 m were arranged in a split?split plot design with three replicates. Genotypes were randomized within dates within irrigated or non?irrigated main plots. Sowing dates were classified as early and late fall and spring (March, April, September and November, respectively). Based on the initial number of viable seeds, proportions of established plants were recorded 30 days after sowing. The ranking of the four genotypes was stable across environments (Chirú > Flavescens > Notatum > Urvillei) and the effect of irrigation was also significant on all of them. In non?irrigated plots emergence was mostly positively associated with cumulative rainfall and negatively associated to mean temperature. On irrigated plots on the other hand, rainfall did not show any effect and the response to mean temperature was best described by a bilinear function which reached its maximum at approximately 20ºC. These results suggest that this set of species may exhibit secondary dormancy at higher mean temperatures. A weak association between establishment and thermal amplitude was found for most genotypes, especially P. urvillei. In general early sowing dates showed the higher establishment ratios both for the fall and the spring. A better adjustment of sowing dates and selection for low?dormancy genotypes like Chirú, may facilitate the adoption of Paspalum species in this region. 650 $aARGENTINA 650 $aPASPALUM 650 $aPASTURAS 650 $aSIEMBRA 650 $aURUGUAY 700 1 $aGONZÁLEZ BARRIOS, P. 700 1 $aCORREA, E. 700 1 $aVIEGA, L. 700 1 $aSALDANHA, S. 700 1 $aREYNO, R. 700 1 $aMUSACCHIO, E. 700 1 $aRUSH, P. 700 1 $aSCHRAUF, G. 700 1 $aSPERANZA, P.
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INIA Tacuarembó (TBO) |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
06/07/2021 |
Actualizado : |
06/07/2021 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
PROGRAMA NACIONAL PASTURAS Y FORRAJES; TÉCNICOS SECTORIALES DEL EQUIPO DE UCTT |
Afiliación : |
PROGRAMA NACIONAL DE INVESTIGACIÓN PASTURAS Y FORRAJES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; UNIDAD DE COMUNICACIÓN Y TRANSFERENCIA DE TECNOLOGÍA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Cuatro pasos para asegurar la persistencia productiva de festuca y dactylis. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Revista INIA Uruguay, 2019, no. 58, p. 9-12. |
Serie : |
(Revista INIA; 58). |
ISSN : |
1510-9011 |
Idioma : |
Español |
Contenido : |
Las pasturas largas son una herramienta efectiva para aumentar la sostenibilidad económica y ambiental de nuestros sistemas pastoriles. Para persistir varios años y capitalizar sus principales atributos, requieren de manejos específicos aplicados en forma metódica, consistente y repetidamente año a año. INIA presenta un enfoque en clave de objetivos estratégicos a los que se asocian manejos estacionales específicos, en este caso aplicado a festuca y dactylis. |
Palabras claves : |
GRAMÍNEAS FORRAJERAS PERENNES TEMPLADAS. |
Thesagro : |
GRAMÍNEAS FORRAJERAS; PASTURAS. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15783/1/Revista-INIA-58-Setiembre-2019-p.9-12.pdf
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Marc : |
LEADER 01101naa a2200193 a 4500 001 1062259 005 2021-07-06 008 2019 bl uuuu u00u1 u #d 022 $a1510-9011 100 1 $aPROGRAMA NACIONAL PASTURAS Y FORRAJES 245 $aCuatro pasos para asegurar la persistencia productiva de festuca y dactylis.$h[electronic resource] 260 $c2019 490 $a(Revista INIA; 58). 520 $aLas pasturas largas son una herramienta efectiva para aumentar la sostenibilidad económica y ambiental de nuestros sistemas pastoriles. Para persistir varios años y capitalizar sus principales atributos, requieren de manejos específicos aplicados en forma metódica, consistente y repetidamente año a año. INIA presenta un enfoque en clave de objetivos estratégicos a los que se asocian manejos estacionales específicos, en este caso aplicado a festuca y dactylis. 650 $aGRAMÍNEAS FORRAJERAS 650 $aPASTURAS 653 $aGRAMÍNEAS FORRAJERAS PERENNES TEMPLADAS 700 1 $aTÉCNICOS SECTORIALES DEL EQUIPO DE UCTT 773 $tRevista INIA Uruguay, 2019, no. 58, p. 9-12.
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