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Resumen
In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the responses to water shortage that lead to variability in drought resistance in Trichloris crinita plants (a native forage grass of northwestern Argentina) from sites [ver mas...]
dc.contributor.authorQuiroga, Raul Emiliano
dc.contributor.authorFernandez, Roberto J.
dc.contributor.authorGolluscio, Rodolfo Angel
dc.contributor.authorBlanco, Lisandro Javier
dc.date.accessioned2018-07-10T12:01:53Z
dc.date.available2018-07-10T12:01:53Z
dc.date.issued2013-08
dc.identifier.issn1385-0237
dc.identifier.issn1573-5052
dc.identifier.otherhttps://doi.org/10.1007/s11258-013-0228-4
dc.identifier.urihttps://link.springer.com/article/10.1007/s11258-013-0228-4
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2745
dc.description.abstractIn arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the responses to water shortage that lead to variability in drought resistance in Trichloris crinita plants (a native forage grass of northwestern Argentina) from sites with contrasting aridity. We established a common-garden experiment with plants from relatively “arid” and “humid” sites (326 and 625 mm mean annual precipitation, respectively). During 6 weeks, plants were subjected to two contrasting watering levels: control and drought. We found different water use strategies and drought resistance between plants from arid and humid sites: the former used water more conservatively and grew more under drought. During the first 2 weeks of the drought treatment, plants from arid sites dried out the soil slower than those from humid sites. Plants from arid sites subjected to drought showed less leaf senescence and a greater leaf elongation rate and biomass of green leaves than those from humid sites. This variability in adaptation to drought in T. crinita plants could be used to select plant materials for arid land revegetation or to be incorporated into breeding programs for forage purposes.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePlant Ecology 214 (8) : 1027–1035 (August 2013)es_AR
dc.subjectGramineases_AR
dc.subjectGrasseseng
dc.subjectResistencia a la Sequíaes_AR
dc.subjectDrought Resistanceeng
dc.subjectUso del Aguaes_AR
dc.subjectWater Useeng
dc.subjectZona Aridaes_AR
dc.subjectArid Zoneseng
dc.subject.otherTrichloris Crinitaes_AR
dc.titleDifferential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity originses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Catamarcaes_AR
dc.description.filFil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentinaes_AR
dc.description.filFil: Fernandez, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Ecología; Argentinaes_AR
dc.description.filFil: Golluscio, Rodolfo A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Forrajicultura; Argentinaes_AR
dc.description.filFil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentinaes_AR
dc.subtypecientifico


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