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Thermographic measurement of canopy temperature is a useful tool for predicting water deficit effects on fruit weight in citrus trees

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Thermographic measurement of canopy temperature is a useful tool for predicting water deficit effects on fruit weight in citrus trees

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dc.contributor.author Ballester, Carlos es_ES
dc.contributor.author Castel, J. es_ES
dc.contributor.author Jiménez Bello, Miguel Ángel es_ES
dc.contributor.author Castel Sánchez, Juan Ramón es_ES
dc.contributor.author INTRIGLIOLO MOLINA, DIEGO SEBASTIANO es_ES
dc.date.accessioned 2015-02-02T12:50:32Z
dc.date.available 2015-02-02T12:50:32Z
dc.date.issued 2013-05
dc.identifier.issn 0378-3774
dc.identifier.uri http://hdl.handle.net/10251/46638
dc.description.abstract [EN] Alternative and more practical methods for plant water stress detection than stem water potential (ψs) and stomatal conductance (gs) are needed when regulated deficit irrigation (RDI) strategies are applied. The aim of this experiment was to compare sap flow and canopy temperature (Tc) measurements with more classical methods like ψs or gs to predict the effect of deficit irrigation on fresh fruit weight in citrus trees. The experiment was performed during the summer of 2011 in a “Clementina de Nules” orchard undergoing RDI. Sap flow was determined by means of the compensation heat pulse method in well-watered and RDI trees. Tc was measured continuously with infrared thermometers (IRTs) mounted over the canopies and also weekly with an infrared hand-operated thermographic camera taking frontal images of the sunlit side of tree crowns. Concurrently, ψs and gs were also measured on all trees. Results showed that the evolution of the relative transpiration obtained with the sap flow sensors was in agreement with the plant water stress experienced. The values of Tc obtained with the fixed IRTs, normalized by air temperature (Tc − Ta) were in general poorly related with ψs and gs. However, when Tc was obtained from thermal imaging, there was a good correlation with ψs in days of relatively high water stress (i.e. when ψs differences among treatments were >1.0 MPa). The average fruit weight at harvest was significantly correlated with all the stress indicators, and the best correlation was that of thermographic Tc followed by ψs and gs. Overall, results showed that in citrus trees Tc measurement obtained from thermal imaging is a good tool to predict the effect of water deficit on fresh fruit weight. es_ES
dc.description.sponsorship The authors thank H. Hernandez and T. Yeves for their help with the field work. This experiment has been funded by the RIDECO-CONSOLIDER CSD2006-00067 and Telerieg Interreg IV Sudoe projects. C. Ballester was holder of a predoctoral fellowship FPI-INIA-CCAA. D.S. Intrigliolo acknowledges the financial support received from the Spanish Ministry of Economy and Competitiveness (MINECO) program "Ramon y Cajal".
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MICINN/CSD2006-00067 es_ES
dc.relation.ispartof Agricultural Water Management es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Infrared canopy temperature es_ES
dc.subject Regulated deficit irrigation es_ES
dc.subject Sap flow es_ES
dc.subject Stem water potential es_ES
dc.subject Stomatal conductance es_ES
dc.subject.classification ORGANIZACION DE EMPRESAS es_ES
dc.subject.classification INGENIERIA HIDRAULICA es_ES
dc.title Thermographic measurement of canopy temperature is a useful tool for predicting water deficit effects on fruit weight in citrus trees es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.agwat.2013.02.005
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation Ballester, C.; Castel, J.; Jiménez Bello, MA.; Castel Sánchez, JR.; Intrigliolo Molina, DS. (2013). Thermographic measurement of canopy temperature is a useful tool for predicting water deficit effects on fruit weight in citrus trees. Agricultural Water Management. 122:1-6. doi:10.1016/j.agwat.2013.02.005 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.agwat.2013.02.005 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 6 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 122 es_ES
dc.relation.senia 256976
dc.contributor.funder Ministerio de Ciencia e Innovación (MICINN)


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