dc.creatorCollino, D. J.
dc.creatorDardanelli, J. L.
dc.creatorDe Luca, M. J.
dc.creatorRacca, Roberto Walter
dc.date.accessioned2020-10-07T22:38:46Z
dc.date.accessioned2022-10-15T14:09:26Z
dc.date.available2020-10-07T22:38:46Z
dc.date.available2022-10-15T14:09:26Z
dc.date.created2020-10-07T22:38:46Z
dc.date.issued2005-12
dc.identifierCollino, D. J.; Dardanelli, J. L.; De Luca, M. J.; Racca, Roberto Walter; Temperature and water availability effects on radiation and water use efficiencies in alfalfa (Medicago sativa L.); Csiro Publishing; Australian Journal Of Experimental Agriculture; 45; 4; 12-2005; 383-390
dc.identifier0816-1089
dc.identifierhttp://hdl.handle.net/11336/115566
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4395140
dc.description.abstractAlfalfa, the most important forage crop in Argentina, shows considerable variability in forage production caused by variations in inter-annual rainfall and intra-annual radiation and temperature regimes. Such variation may affect radiation use efficiency and water use efficiency. This paper seeks to study the effects of temperature and water availability on radiation use efficiency and water use efficiency. We conducted the experiment in Córdoba, Argentina, under irrigated and draughted conditions. Drought was imposed by mobile rainout shelters during 3 consecutive periods. We measured forage, intercepted photosynthetically active radiation and water use to calculate radiation use efficiency and water use efficiency between cuttings. Under irrigation, radiation use efficiency and water use efficiency normalised by daytime vapour pressure deficit, were not limited by mean temperature above 21.3 and 21.9°C, respectively. Below those critical values, both variables decreased consistently with temperature decrements. Under drought, radiation use efficiency tended to decrease and water use efficiency tended to increase. In addition, the relationship between relative dry matter and relative water use was not linear, as reported in previous studies for annual crops.
dc.languageeng
dc.publisherCsiro Publishing
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/an/EA04050
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1071/EA04050
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectAIR TEMPERATURE
dc.subjectDROUGHT
dc.subjectEFFICIENCY
dc.titleTemperature and water availability effects on radiation and water use efficiencies in alfalfa (Medicago sativa L.)
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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