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Abstract
The aims of this work were to quantify (i) the effect of the source:sink ratio on stem water potential (SWP) and (ii) the phenotypic plasticity of SWP and its relationship to oil yield components in olive. Trees with a 3-fold variation in the source:sink ratio (crown volume/fruit number per tree) were monitored in 2007–2008 and 2008–2009 in a fully irrigated orchard in Mendoza, Argentina. The combination of rainfall, irrigation, and evaporative demand led [ver mas...]
dc.contributor.authorTrentacoste, Eduardo Rafael
dc.contributor.authorSadras, Victor Oscar
dc.contributor.authorPuertas, Carlos Marcelo
dc.date.accessioned2020-06-22T13:30:50Z
dc.date.available2020-06-22T13:30:50Z
dc.date.issued2011-06
dc.identifier.issn0022-0957
dc.identifier.issn1460-2431
dc.identifier.otherhttps://doi.org/10.1093/jxb/err044
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7450
dc.identifier.urihttps://academic.oup.com/jxb/article/62/10/3535/481553
dc.description.abstractThe aims of this work were to quantify (i) the effect of the source:sink ratio on stem water potential (SWP) and (ii) the phenotypic plasticity of SWP and its relationship to oil yield components in olive. Trees with a 3-fold variation in the source:sink ratio (crown volume/fruit number per tree) were monitored in 2007–2008 and 2008–2009 in a fully irrigated orchard in Mendoza, Argentina. The combination of rainfall, irrigation, and evaporative demand led to a steady SWP largely above –1.65 MPa in 2007–2008 and a marked seasonal decline from –1.13 MPa to –2.04 MPa in trees with a medium and low source:sink ratio in 2008–2009. Plasticity was quantified as the slope of the norm of reaction for each trait. Across seasons, trees with a high source:sink ratio had a higher SWP than their counterparts with a medium and low source:sink ratio. Plasticity of SWP was highest in olives with a low source:sink ratio (slope=1.28) and lowest for trees with a high source:sink ratio (slope=0.76). The average SWP for each source:sink ratio and season was unrelated to both the source:sink ratio and yield components. On the other hand, the plasticity of SWP was positively associated with fruit number and negatively associated with the source:sink ratio, fruit weight, and fruit oil weight. The plasticity of the SWP was unrelated to SWP per se. It is concluded that understanding the effect of the source:sink ratio on plant water relations would benefit from a dual perspective considering the trait per se and its plasticity. A dual approach would also allow for more robust plant-based indicators for irrigation.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSociety for Experimental Biologyes_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceJournal of Experimental Botany 62 (10) : 3535–3543. (June 2011)es_AR
dc.subjectOlea europaeaes_AR
dc.subjectPlasticidad Fenotípicaes_AR
dc.subjectPhenotypic Plasticityeng
dc.subjectMedio Ambientees_AR
dc.subjectEnvironmenteng
dc.subjectRelaciones Planta Aguaes_AR
dc.subjectPlant Water Relationseng
dc.subjectRendimientoes_AR
dc.subjectYieldseng
dc.subject.otherOlivoes_AR
dc.subject.otherOliveeng
dc.titleEffects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.)es_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 Junínes_AR
dc.description.filFil: Trentacoste, Eduardo Rafael. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentinaes_AR
dc.description.filFil: Sadras, Victor Oscar. South Australian Research & Development Institute; Australiaes_AR
dc.description.filFil: Puertas, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentinaes_AR
dc.subtypecientifico


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