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Pattern of trunk diameter fluctuations of almond trees in deficit irrigation scheduling during the first seasons

 

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dc.creator Corell González, Mireia es
dc.creator Girón Moreno, Ignacio Francisco es
dc.creator Andreu Cáceres, Luis es
dc.creator Trigo, E. es
dc.creator Torrecillas Melendreras, Arturo es
dc.creator Centeno, Ana es
dc.creator Pérez-López, D. es
dc.creator Moriana Elvira, Alfonso es
dc.creator López Moreno, Y.E. es
dc.creator Martín-Palomo García, María José es
dc.date.accessioned 2019-04-24T16:39:31Z
dc.date.available 2019-04-24T16:39:31Z
dc.date.issued 2019
dc.identifier.citation Corell González, M., Girón Moreno, I.F., Andreu Cáceres, L., Trigo, E., Torrecillas Melendreras, A., Centeno, A.,...,Martín-Palomo García, M.J. (2019). Pattern of trunk diameter fluctuations of almond trees in deficit irrigation scheduling during the first seasons. Agricultural Water Management, 2019 (218), 115 p.-123 p..
dc.identifier.issn 0378-3774 es
dc.identifier.uri https://hdl.handle.net/11441/85922
dc.description.abstract Irrigation needs in mature almond orchards are very high. Although almond trees grow in rainfed conditions, the yield response is very sensitive to irrigation. Continuous monitoring of the water status could be an adequate tool to optimize deficit irrigation. In this sense, trunk diameter fluctuations appeared as a very promising indicator at the beginning of the century, but few data have been published. The aim of this work is to check threshold values of maximum daily shrikage (MDS) and identify possible limitations to their use in commercial orchards. The experiment was performed in a commercial farm in Dos Hermanas (Seville, Spain) during the 2017 season on a 7-years-old orchard (cv Vairo). The irrigation treatments were Control (100% ETc), sustained deficit irrigation (SDI) with a maximum seasonal irrigation of 100 mm and two regulated deficit treatments (RDI). Both RDI treatments (RDI-1 and RDI-2) were scheduled using the signal of maximum daily shrinkage (signal) and the midday stem water potential (SWP). In RDI-1, full irrigation conditions were provided before kernel filling and during postharvest, using the threshold values suggested in the bibliography. During kernel filling, the water stress level was designed to be -1.5 MPa (SWP) and 1.75 (signal). RDI-2 trees were irrigated using the same scheduling as RDI-1, but target water stress values were higher in kernel filling (-2 MPa and 2.75) and with a maximum seasonal amount of water of 100 mm. SWP in Control trees was near the McCutchan and Shackel baseline for most of the season. None of the deficit treatments reached the signal values suggested. Moreover, the signal values were almost equal between treatments, with no water stress effect. The trunk growth rate (TGR) presented clear differences depending on the water status. es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Elsevier es
dc.relation.ispartof Agricultural Water Management, 2019 (218), 115 p.-123 p..
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Kernel filing es
dc.subject Maximum daily shrinkage es
dc.subject MDS es
dc.subject Trunk growth rate es
dc.subject TGR es
dc.title Pattern of trunk diameter fluctuations of almond trees in deficit irrigation scheduling during the first seasons es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/publishedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Ciencias Agroforestales es
dc.relation.publisherversion https://doi.org/10.1016/j.agwat.2019.03.033 es
dc.identifier.doi 10.1016/j.agwat.2019.03.033 es
dc.contributor.group Universidad de Sevilla. AGR188: Agronomia es
idus.format.extent 9 p. es
dc.journaltitle Agricultural Water Management es
dc.publication.volumen 2019 (218) es
dc.publication.initialPage 115 p. es
dc.publication.endPage 123 p. es
dc.identifier.sisius 4247 es
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