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Abstract
In the past, tall fescue ecotypes were compared under intermediate management defoliation frequency, but now has station, Argentina (-33 ° 56 'S, -60 ° 33' W) in autumn 2016, on a typical Argiudoll soil. The treatments were cultivars representing three ecotypes of tall fescue: (i) - Mediterranean (cv. Flecha), (ii) - Intermediate (cv. Royal Q 100) and (iii) - Continental (cv. Lujan INTA). Each plot consisted of 7 rows 6.0 m long, 0.2 m apart (8.4m2 plot [ver mas...]
dc.contributor.authorMattera, Juan
dc.contributor.authorScheneiter, Jorge Omar
dc.contributor.authorCattoni, María Isabel
dc.contributor.authorPacente, Ezequiel Martin
dc.contributor.authorBarletta, Pablo Fernando
dc.contributor.authorBertin, Oscar Dario
dc.date.accessioned2022-05-12T16:16:04Z
dc.date.available2022-05-12T16:16:04Z
dc.date.issued2021
dc.identifier.urihttp://hdl.handle.net/20.500.12123/11870
dc.identifier.urihttps://uknowledge.uky.edu/igc/24/2-2/26/
dc.description.abstractIn the past, tall fescue ecotypes were compared under intermediate management defoliation frequency, but now has station, Argentina (-33 ° 56 'S, -60 ° 33' W) in autumn 2016, on a typical Argiudoll soil. The treatments were cultivars representing three ecotypes of tall fescue: (i) - Mediterranean (cv. Flecha), (ii) - Intermediate (cv. Royal Q 100) and (iii) - Continental (cv. Lujan INTA). Each plot consisted of 7 rows 6.0 m long, 0.2 m apart (8.4m2 plot size) arranged in a randomized complete block design with 4 replicates. The first cut was done at the end of September when pastures reached > 90 % of soil cover. The following six cuts were done when thermal time was 550°±50°C degree days (base temperature=4°C). The forage accumulation was determined by cutting with a mowing machine the central 5 m2 of each plot, at a height of 0.05 m. A sample (0.250 g) was taken to analyze in vitro dry matter digestibility (IVDIG), crude protein (CP), neutral detergent fiber (NDF) and NDF digestibility (NDFDIG). Mixed model was applied to consider ecotype and time effects. Ecotype*time interaction was significant for all variables (p< 0.0001) except for forage accumulation. The values ranged between 491 and 2,625 kg DM ha-1 for forage accumulation, while IVDIG ranged between 57.2 and 68.7%, CP between 11.5 and 19.1%, NDF between 45.5 and 62.8% and NDFDIG between 26 and 65.3%. The Mediterranean ecotype produced less forage but in many cuts with higher CP. In many cuts, IVDIG was higher in the Continental ecotype associated with less leaf diseases.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherUniversity of Kentuckyes_AR
dc.relationinfo:eu-repograntAgreement/INTA/2019-PE-E6-I142-001/2019-PE-E6-I142-001/AR./Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina
dc.relationinfo:eu-repograntAgreement/INTA/2019-RIST-E6-I226-001/2019-RIST-E6-I226-001/AR./Red de evaluación de cultivares
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceThe Joint XXIV International Grassland and XI Rangeland 2021 Congress. Nairobi, Kenya, October 25 – 29, 2021.es_AR
dc.subjectForrajeses_AR
dc.subjectForageeng
dc.subjectFestucaes_AR
dc.subjectDefoliaciónes_AR
dc.subjectDefoliationeng
dc.subjectValor Nutritivoes_AR
dc.subjectNutritive Valueeng
dc.subjectCalidad
dc.subjectQualityeng
dc.subject.otherTemperate Grasseses_AR
dc.subject.otherPergamino, Buenos Aireses_AR
dc.subject.otherFestuca altaes_AR
dc.titleForage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliationes_AR
dc.typeinfo:ar-repo/semantics/documento de conferenciaes_AR
dc.typeinfo:eu-repo/semantics/conferenceObjectes_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Mattera, Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.description.filFil: Scheneiter, Jorge Omar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.description.filFil: Cattoni, María Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio Calidad de Alimento, suelos y Agua; Argentinaes_AR
dc.description.filFil: Pacente, Ezequiel Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.description.filFil: Barletta, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.description.filFil: Bertin, Oscar Dario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.subtypeponencia


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