Fecha/hora: 07/06/2024 10:48:09

Biblioteca(s): | INIA Tacuarembó.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 09/04/2021
Fecha de la última actualización: | 13/04/2021
Autoria: | SARAVIA, K.M.; DALL'AGNOL, M.; DA MOTTA, E.A.M.; PEREIRA, E.A.; DE SOUZA, C.H.; SIMINONI, C.; WEILER, R.L.; KOPP, M.M.; SCHNEIDER-CANNY, R.; BARBOSA, M.
Afiliación: | KARLA M. SARAIVA, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; MIGUEL DALL'AGNOL, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; EDER A.M. DA MOTTA, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; EMERSON A. PEREIRA, Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Ijuí, RS, Brazil; CLEBER H. L. DE SOUZA, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; CARINE SIMINONI, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; ROBERTO L. WEILER, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; MAURÍCIO M. KOPP, Embrapa Pecuária Sul, Bagé, RS, Brazil; RAQUEL SCHNEIDER-CANNY, Noble Research Institute, Ardmore, USA; MARLON BARBOSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Hybrids of Paspalum plicatulum × P. guenoarum: Selection for forage yield and cold tolerance in a subtropical environment.
Año de publicación: | 2021
Fuente/Imprenta: | Tropical Grasslands-Forrajes Tropicales, 2021, Vol. 9 (1):138?143. Doi: http://dx.doi.org/10.17138/TGFT(9)138-143
DOI: | 10.17138/TGFT(9)138-143
Idioma: | Inglés
Notas: | Article history: Received for publication 6 March 2019; accepted 15 December 2020; published 31 January 2021. Acknowledgments: We acknowledge the financial support from SULPASTO, EMBRAPA - Pecuária Sul and CAPES to enable the conduct of this research. We also thank the IBONECONICET, Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, especially Camilo Luiz Quarín, for the technical assistance in hybridizations.

Contenido:

Selection of improved genotypes is important for pasture-based feeding systems in subtropical regions. Our goal was to identify hybrids of Paspalum with enhanced forage yield and cold tolerance across 2 sites [Bagé and Eldorado do Sul (ES)], in Rio Grande do Sul, Brazil. We evaluated 19 P. plicatulum × P. guenoarum hybrids, P. plicatulum genotype
4PT, P. guenoarum cultivars Azulão and Baio and, as Control, Megathyrsus maximus cv. Aruana. At both sites, the experimental design was a completely randomized block with 4 replications. Total dry mass (total-DM), leaf-DM and cold tolerance (ColdT) were recorded. At Bagé, hybrid 102069 produced higher total-DM and leaf-DM than the
progenitors and cv. Aruana, while at ES, hybrids 102069 and 10308 produced higher total-DM than 4PT, Azulão and Aruana; hybrid 102069 had higher leaf-DM. At Bagé, 16 hybrids displayed ColdT similar to their progenitors and higher than Aruana, while at ES, 12 hybrids showed ColdT similar to Azulão and Baio and higher than 4PT and Aruana. This
study demonstrated that hybrids of Paspalum with superior forage yield to their progenitors and Aruana, and hybrids with higher ColdT than 4PT and Aruana are in existence. The hybridization technique shows potential for producing alternative genotypes with higher forage yield and ColdT for sowing in subtropical regions.

Palabras-Clave: | ADAPTACIÓN CLIMÁTICA; BIOMASS PRODUCTION; GENETIC VARIABILITY; GRAMÍNEAS NATIVAS; HIBRIDACIÓN; HYBRIDIZATION; NATIE GRASSES; PASTURAS; PRODUCCIÓN DE BIOMASA; VARIABILIDAD.
Thesagro: | FORESTACIÓN.
Categoría del tema: | A50 Investigación agraria
Registro original: | INIA Tacuarembó (TBO)
Ejemplares: | TBO - (103409-1) - PXI - AP - DD -  -  -  - DIS