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Wheat is increasingly used as a dual-purpose crop (for forage and grain production) worldwide. Plants encounter low temperatures in winter, which commonly results in sugar accumulation. High sugar levels might have a positive impact on forage digestibility, but may also lead to an increased risk of bloat. We hypothesized that cultivars with a lower capacity to accumulate sugars when grown under cold conditions may have a lower bloat risk than higher
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dc.contributor.author | Lorenzo, Maximo | |
dc.contributor.author | Assuero, Silvia Graciela | |
dc.contributor.author | Tognetti, Jorge Alberto | |
dc.date.accessioned | 2017-09-15T11:01:13Z | |
dc.date.available | 2017-09-15T11:01:13Z | |
dc.date.issued | 2015-08-17 | |
dc.identifier.issn | 2077-0472 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/1228 | |
dc.identifier.uri | http://www.mdpi.com/2077-0472/5/3/649/htm | |
dc.description.abstract | Wheat is increasingly used as a dual-purpose crop (for forage and grain production) worldwide. Plants encounter low temperatures in winter, which commonly results in sugar accumulation. High sugar levels might have a positive impact on forage digestibility, but may also lead to an increased risk of bloat. We hypothesized that cultivars with a lower capacity to accumulate sugars when grown under cold conditions may have a lower bloat risk than higher sugar-accumulating genotypes, without showing significantly lower forage digestibility. This possibility was studied using two wheat cultivars with contrasting sugar accumulation at low temperature. A series of experiments with contrasting temperatures were performed in controlled-temperature field enclosures (three experiments) and growth chambers (two experiments). Plants were grown at either cool (8.1 °C–9.3 °C) or warm (15.7 °C–16.5 °C) conditions in field enclosures, and at either 5 °C or 25 °C in growth chambers. An additional treatment consisted of transferring plants from cool to warm conditions in the field enclosures and from 5 °C to 25 °C in the growth chambers. The plants in the field enclosure experiments were exposed to higher irradiances (i.e., 30%–100%) than those in the growth chambers. Our results show that (i) low temperatures led to an increased hemicellulose content, in parallel with sugar accumulation; (ii) low temperatures produced negligible changes in in vitro dry matter digestibility while leading to a higher in vitro rumen gas production, especially in the higher sugar-accumulating cultivar; (iii) transferring plants from cool to warm conditions led to a sharp decrease in in vitro rumen gas production in both cultivars; and (iv) light intensity (in contrast to temperature) appeared to have a lower impact on forage quality. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.rights | info:eu-repo/semantics/openAccess | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
dc.source | Agriculture / MDPI 5 (3) : 649-667. (2015) | |
dc.subject | Trigo | es_AR |
dc.subject | Triticum Aestivum | |
dc.subject | Variedades | |
dc.subject | Varieties | eng |
dc.subject | Celulosa Asimilable | |
dc.subject | Digestible Cellulose | eng |
dc.subject | Digestibilidad in Vitro | |
dc.subject | In Vtro Digestibility | eng |
dc.subject | Rumen | |
dc.subject | Azucares | |
dc.subject | Sugars | eng |
dc.subject | Temperatura | |
dc.subject | Temperature | eng |
dc.subject | Bovinae | |
dc.title | Temperature impact on the forage quality of two wheat cultivars with contrasting capacity to accumulate sugars | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
dc.description.fil | Fil: Lorenzo, Maximo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina | |
dc.description.fil | Fil: Assuero, Silvia Graciela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina | |
dc.description.fil | Fil: Tognetti, Jorge Alberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Laboratorio de Fisiología Vegetal; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentina | |
dc.subtype | cientifico |
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