Show simple item record

resumen

Abstract
Sensitivity to water availability is a key physiological trait for grassland species located in arid and semiarid environments, where successful germination is closely related to rainfall dynamics. Festuca pallescens inhabits diverse environments along a steep precipitation gradient in North Patagonia, thus offering a suitable model for the study of germination behavior in response to water availability. By analyzing germination in nine populations using [ver mas...]
dc.contributor.authorLopez, Aldana Soledad
dc.contributor.authorLopez, Dardo Ruben
dc.contributor.authorArana, María Veronica
dc.contributor.authorBattla, Diego
dc.contributor.authorMarchelli, Paula
dc.date.accessioned2021-06-04T11:29:48Z
dc.date.available2021-06-04T11:29:48Z
dc.date.issued2021-05
dc.identifier.issn2045-2322
dc.identifier.otherhttps://doi.org/10.1038/s41598-021-89901-1
dc.identifier.urihttp://hdl.handle.net/20.500.12123/9495
dc.identifier.urihttps://www.nature.com/articles/s41598-021-89901-1
dc.description.abstractSensitivity to water availability is a key physiological trait for grassland species located in arid and semiarid environments, where successful germination is closely related to rainfall dynamics. Festuca pallescens inhabits diverse environments along a steep precipitation gradient in North Patagonia, thus offering a suitable model for the study of germination behavior in response to water availability. By analyzing germination in nine populations using a hydrotime model approach, we aimed to find within-species variation. Seed population behavior was analyzed under different hydric conditions using hydrotime model parameters (hydrotime, mean base water potential and its standard deviation). We estimated the mean base water potential for F. pallescens (ψb(50) = − 2.79 ± 0.45 MPa), which did not differ significantly between populations. However, the hydrotime parameter (θH) varied markedly, suggesting physiological adaptation to local environments. Higher values of θH were found in populations located at the extremes of the distribution gradient, indicating that germination may be prevented or delayed in conditions that are suboptimal for the species. Since the variation in hydrotime model parameters did not follow a cline, micro-environmental cues may have the greatest influence on the physiological behavior of the species, rather than the macroscale rainfall gradient.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringer Naturees_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceScientific Reports 11 : Art.: 10653 (May 2021)es_AR
dc.subjectFestucaes_AR
dc.subjectGramíneas Forrajerases_AR
dc.subjectFeed Grasseseng
dc.subjectPastizaleses_AR
dc.subjectPastureseng
dc.subjectPastizal Naturales_AR
dc.subjectNatural Pastureseng
dc.subject.otherFestuca pallescenses_AR
dc.subject.otherRegión Patagónicaes_AR
dc.subject.otherGradiente de Lluviases_AR
dc.titleGermination response to water availability in populations of Festuca pallescens along a Patagonian rainfall gradient based on hydrotime model parameterses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEstación Experimental Agropecuaria Barilochees_AR
dc.description.filFil: Lopez, Aldana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Lopez, Aldana Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentinaes_AR
dc.description.filFil: Lopez, Dardo Ruben. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Campo Anexo Villa Dolores; Argentinaes_AR
dc.description.filFil: Arana, María Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Arana, María Veronica. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentinaes_AR
dc.description.filFil: Battla, Diego. Universidad Nacional de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentinaes_AR
dc.description.filFil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Marchelli, Paula. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record