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Resumen
Tall wheatgrass [Elymus elongatus subsp. ponticus (Podp.) Melderis] is a C3 grass native from dry or saline habitats in SE Europe. The aim of this study was to better understand response mechanisms of populations from different origins to salinity and to provide new tools to select germoplasm with high salinity tolerance. Four populations (P3‐P4‐P5‐P9) were irrigated with five solutions of increasing salinity (Salt: 0–0.1–0.2–0.3–0.4 M NaCl) and evaluated [ver mas...]
dc.contributor.authorBorrajo, Celina Ines
dc.contributor.authorSánchez‐Moreiras, Adela M.
dc.contributor.authorReigosa, Manuel J.
dc.date.accessioned2020-12-11T13:33:08Z
dc.date.available2020-12-11T13:33:08Z
dc.date.issued2020-12
dc.identifier.issn1439-037X
dc.identifier.otherhttps://doi.org/10.1111/jac.12461
dc.identifier.urihttp://hdl.handle.net/20.500.12123/8395
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/jac.12461
dc.description.abstractTall wheatgrass [Elymus elongatus subsp. ponticus (Podp.) Melderis] is a C3 grass native from dry or saline habitats in SE Europe. The aim of this study was to better understand response mechanisms of populations from different origins to salinity and to provide new tools to select germoplasm with high salinity tolerance. Four populations (P3‐P4‐P5‐P9) were irrigated with five solutions of increasing salinity (Salt: 0–0.1–0.2–0.3–0.4 M NaCl) and evaluated in pots in a greenhouse. Two experiments were carried out, a short 40‐day long experiment with vegetative plants, and a longer 85‐day long one with plants that underwent vegetative‐reproductive stage. No evidence was found of an interaction between population and salt. Morpho‐physiological, biochemicals, isotopic and productive variables were differently affected by increasing salinity and were also different among populations. Proline, Na+ and Cl− consistently appeared to function as osmotic agents. P5 showed the highest biomass in the 85‐day experiment and had the highest leaf length, tiller density, water use efficiency and δ13C isotope; and the lowest Cl− concentration and evapotranspiration rate. However, P5 showed the lowest biomass in the 40‐day experiment, suggesting that duration of the stress is an important aspect to consider when selecting germoplasm for tolerance to salinity. Differences among populations in growth strategies and physiological mechanisms could be related to their origin environment.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Agronomy and Crop Science (First published: 05 December 2020)es_AR
dc.subjectElymus elongatuses_AR
dc.subjectGramineases_AR
dc.subjectGrasseseng
dc.subjectEstrés Osmóticoes_AR
dc.subjectOsmotic Stresseng
dc.subjectMorfogénesises_AR
dc.subjectMorphogenesiseng
dc.subjectGermoplasmaes_AR
dc.subjectGermplasmeng
dc.subject.otherAgropiro Alargadoes_AR
dc.subject.otherEstrés Salinoes_AR
dc.titleMorpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stresses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/acceptedVersiones_AR
dc.description.origenEEA Cuenca del Saladoes_AR
dc.description.filFil: Borrajo, Celina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina. Universidad de Vigo. Facultad de Biología; Españaes_AR
dc.description.filFil: Sánchez‐Moreiras, Adela M. Universidad de Vigo. Facultad de Biología; Españaes_AR
dc.description.filFil: Reigosa, Manuel J. Universidad de Vigo. Facultad de Biología; Españaes_AR
dc.subtypecientifico


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