Temperature Impact on the Forage Quality of Two Wheat Cultivars with Contrasting Capacity to Accumulate Sugars
| cic.isFulltext | true | es |
| cic.isPeerReviewed | true | es |
| cic.lugarDesarrollo | Universidad Nacional de Mar del Plata | es |
| cic.version | info:eu-repo/semantics/publishedVersion | es |
| dc.date.accessioned | 2017-05-11T16:41:08Z | |
| dc.date.available | 2017-05-11T16:41:08Z | |
| dc.identifier.uri | https://digital.cic.gba.gob.ar/handle/11746/5720 | |
| dc.title | Temperature Impact on the Forage Quality of Two Wheat Cultivars with Contrasting Capacity to Accumulate Sugars | en |
| dc.type | Artículo | es |
| dcterms.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. | en |
| dcterms.creator.author | Lorenzo, Maximo | es |
| dcterms.creator.author | Assuero, Silvia | es |
| dcterms.creator.author | Tognetti, Jorge Alberto | es |
| dcterms.extent | p. 650-667 | es |
| dcterms.identifier.other | DOI 10.3390/agriculture5030649 | es |
| dcterms.identifier.url | Recurso completo | es |
| dcterms.isPartOf.issue | vol. 5, nº 3 | es |
| dcterms.isPartOf.series | Agriculture | es |
| dcterms.issued | 2015 | |
| dcterms.language | Inglés | es |
| dcterms.license | Attribution-NonCommercial-NoDerivatives 4.0 International (BY-NC-ND 4.0) | es |
| dcterms.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | es |
| dcterms.subject | Triticum | en |
| dcterms.subject | dual purpose | en |
| dcterms.subject | Celulosa | es |
| dcterms.subject | in vitro rumen gas production | en |
| dcterms.subject | in vitro dry matter digestibility | en |
| dcterms.subject.materia | Agricultura | es |
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