Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation
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 (c...
| Main Authors: | , , , , , |
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| Format: | Conferencia |
| Language: | Inglés |
| Published: |
University of Kentucky
2022
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/11870 https://uknowledge.uky.edu/igc/24/2-2/26/ |
| _version_ | 1855484864853180416 |
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| author | Mattera, Juan Scheneiter, Jorge Omar Cattoni, María Isabel Pacente, Ezequiel Martin Barletta, Pablo Fernando Bertin, Oscar Dario |
| author_browse | Barletta, Pablo Fernando Bertin, Oscar Dario Cattoni, María Isabel Mattera, Juan Pacente, Ezequiel Martin Scheneiter, Jorge Omar |
| author_facet | Mattera, Juan Scheneiter, Jorge Omar Cattoni, María Isabel Pacente, Ezequiel Martin Barletta, Pablo Fernando Bertin, Oscar Dario |
| author_sort | Mattera, Juan |
| collection | INTA Digital |
| description | 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 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. |
| format | Conferencia |
| id | INTA11870 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | University of Kentucky |
| publisherStr | University of Kentucky |
| record_format | dspace |
| spelling | INTA118702022-05-12T17:15:05Z Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation Mattera, Juan Scheneiter, Jorge Omar Cattoni, María Isabel Pacente, Ezequiel Martin Barletta, Pablo Fernando Bertin, Oscar Dario Forrajes Festuca Defoliación Valor Nutritivo Forage Defoliation Nutritive Value Quality Calidad Temperate Grasses Pergamino, Buenos Aires Festuca alta 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 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. EEA Pergamino Fil: Mattera, Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina Fil: Scheneiter, Jorge Omar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina Fil: Cattoni, María Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio Calidad de Alimento, suelos y Agua; Argentina Fil: Pacente, Ezequiel Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina Fil: Barletta, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina Fil: Bertin, Oscar Dario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina 2022-05-12T16:16:04Z 2022-05-12T16:16:04Z 2021 info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11870 https://uknowledge.uky.edu/igc/24/2-2/26/ eng info: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 info:eu-repograntAgreement/INTA/2019-RIST-E6-I226-001/2019-RIST-E6-I226-001/AR./Red de evaluación de cultivares info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf University of Kentucky The Joint XXIV International Grassland and XI Rangeland 2021 Congress. Nairobi, Kenya, October 25 – 29, 2021. |
| spellingShingle | Forrajes Festuca Defoliación Valor Nutritivo Forage Defoliation Nutritive Value Quality Calidad Temperate Grasses Pergamino, Buenos Aires Festuca alta Mattera, Juan Scheneiter, Jorge Omar Cattoni, María Isabel Pacente, Ezequiel Martin Barletta, Pablo Fernando Bertin, Oscar Dario Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title | Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title_full | Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title_fullStr | Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title_full_unstemmed | Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title_short | Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation |
| title_sort | forage accumulation and quality of three contrasting ecotypes of tall fescue schedonorus arundinaceus managed under frequent defoliation |
| topic | Forrajes Festuca Defoliación Valor Nutritivo Forage Defoliation Nutritive Value Quality Calidad Temperate Grasses Pergamino, Buenos Aires Festuca alta |
| url | http://hdl.handle.net/20.500.12123/11870 https://uknowledge.uky.edu/igc/24/2-2/26/ |
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