Show simple item record

resumen

Abstract
Aims Growth and physiology of Salix matsudana x S. alba and E. camaldulensis were evaluated in vertical saline gradients to test whether growth is determined by the mean salinity of rhizosphere, the average salinity weighed by the root number in each portion of the soil, the lowest or the highest rhizosphere salinity. Methods Saplings were grown in pots with an original irrigation system determining upper and lower soil layers with a combination of 4 [ver mas...]
dc.contributor.authorQuiñones Martorello, Adriana
dc.contributor.authorGyenge, Javier
dc.contributor.authorFernandez, María Elena
dc.date.accessioned2018-08-29T14:29:51Z
dc.date.available2018-08-29T14:29:51Z
dc.date.issued2017-07
dc.identifier.issn0032-079X
dc.identifier.issn1573-5036
dc.identifier.otherhttp://dx.doi.org/10.1007/s11104-017-3223-z
dc.identifier.urihttps://link.springer.com/article/10.1007/s11104-017-3223-z
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3235
dc.description.abstractAims Growth and physiology of Salix matsudana x S. alba and E. camaldulensis were evaluated in vertical saline gradients to test whether growth is determined by the mean salinity of rhizosphere, the average salinity weighed by the root number in each portion of the soil, the lowest or the highest rhizosphere salinity. Methods Saplings were grown in pots with an original irrigation system determining upper and lower soil layers with a combination of 4 treatments: control, moderate homogeneous salinity (Ho), and heterogeneous salinity, with high concentration of NaCl in the upper (HeU) or in the lower soil layer (HeL). Results E. camaldulensis saline treatments decreased Ψpre-dawn and Ψosmotic. HeU and HeL did not decrease stem growth (RVG), but HeL reduced root biomass in lower soil layer. Ho treatment reduced RVG (50%), increasing leaf senescence and altering some ions concentration (but not Na+). In Salix sp., Ho decreased Ψpre-dawn and chlorophyll content, increasing leaf senescence and Cl− concentration resulting in low leaf biomass. HeL also decreased plant total biomass. Conclusions Lower concentration of salt homogeneously distributed in soil profile would have more effect than high salt concentration but restricted to one soil layer. The negative impact of high salinity would be higher if salts are in deeper than in upper soil layers. Salt tolerance thresholds would then depend more on the salt spatial distribution in the soil than on its average concentration along the rhizosphereeng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringer Internationales_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePlant and Soil 416 (1-2) : 343-360 (July 2017)es_AR
dc.subjectSalinidad del Sueloes_AR
dc.subjectSoil Salinityeng
dc.subjectEucalyptus camaldulensises_AR
dc.subjectSalixes_AR
dc.subjectAguaes_AR
dc.subjectWatereng
dc.subjectCrecimientoes_AR
dc.subjectGrowtheng
dc.titleMorpho-physiological response to vertically heterogeneous soil salinity of two glycophyte woody taxa, Salix matsudana x S. alba and Eucalyptus camaldulensis Dehnhes_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 Balcarcees_AR
dc.description.filFil: Quiñones Martorello, Adriana Silvia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Gyenge, Javier Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural, Tandil, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Fernández, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural, Tandil, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record