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Abstract
This paper presents HydroShoot, a leaf-based functional-structural plant model (FSPM) that simulates gas exchange rates of complex plant canopies under water deficit conditions. HydroShoot is built assuming that simulating both the hydraulic structure of the shoot together with the energy budget of individual leaves is the asset for successfully scaling-up leaf to canopy gas exchange rates. HydroShoot includes three interacting modules: hydraulic, which [ver mas...]
dc.contributor.authorAlbasha, Rami
dc.contributor.authorFournier, Christian
dc.contributor.authorPradal, Christophe
dc.contributor.authorChelle, Michael
dc.contributor.authorPrieto, Jorge Alejandro
dc.contributor.authorLouarn, Gaëtan
dc.contributor.authorSimonneau, Thierry
dc.contributor.authorLebon, Eric
dc.date.accessioned2019-11-29T14:23:29Z
dc.date.available2019-11-29T14:23:29Z
dc.date.issued2019-06
dc.identifier.issn2517-5025
dc.identifier.otherhttps://doi.org/10.1093/insilicoplants/diz007
dc.identifier.urihttps://academic.oup.com/insilicoplants/article/1/1/diz007/5519776
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6431
dc.description.abstractThis paper presents HydroShoot, a leaf-based functional-structural plant model (FSPM) that simulates gas exchange rates of complex plant canopies under water deficit conditions. HydroShoot is built assuming that simulating both the hydraulic structure of the shoot together with the energy budget of individual leaves is the asset for successfully scaling-up leaf to canopy gas exchange rates. HydroShoot includes three interacting modules: hydraulic, which calculates the distribution of xylem water potential across shoot hydraulic segments; energy, which calculates the complete energy budget of individual leaves; and exchange, which calculates net carbon assimilation and transpiration rates of individual leaves. HydroShoot was evaluated on virtual and real grapevines having strongly contrasted canopies, under well-watered and water deficit conditions. It captured accurately the impact of canopy architecture and soil water status on plant-scale gas exchange rates and leaf-scale temperature and water potential. Both shoot hydraulic structure and leaf energy budget simulations were, as postulated, required to adequately scaling-up leaf to canopy gas exchange rates. Notwithstanding, simulating shoot hydraulic structure was found more necessary to adequately performing this scaling task than simulating leaf energy budget. That is, the intra-canopy variability of leaf water potential was a better predictor of the reduction of whole plant gas exchange rates under water deficit than the intra-canopy variability of leaf temperature. We conclude that simulating the shoot hydraulic structure is a prerequisite if FSPMs are to be used to assess gas exchange rates of complex plant canopies as those of grapevines. Finally, HydroShoot is available through the OpenAlea platform (https://github.com/openalea/hydroshoot) as a set of reusable modules.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherOxford Academic Presses_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceIn silico Plants 1 (1) : diz007 (2019)es_AR
dc.subjectVides_AR
dc.subjectGrapevineseng
dc.subjectVitis Viniferaes_AR
dc.subjectIntercambio de Gaseses_AR
dc.subjectGas Exchangeeng
dc.subjectCubierta de Copases_AR
dc.subjectCanopyeng
dc.subjectModelos de Simulaciónes_AR
dc.subjectSimulation Modelseng
dc.subjectEstrés de Sequiaes_AR
dc.subjectDrought Stresseng
dc.subject.otherCanopiaes_AR
dc.subject.otherDéficit Hídricoes_AR
dc.titleHydroShoot: a functional-structural plant model for simulating hydraulic structure, gas and energy exchange dynamics of complex plant canopies under water deficit—application to grapevine (Vitis vinifera)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 Mendozaes_AR
dc.description.filFil: Albasha, Rami. Institut National de la Recherche Agronomique. LEPSE Montpellier; Franciaes_AR
dc.description.filFil: Fournier, Christian. Institut National de la Recherche Agronomique. LEPSE Montpellier; Franciaes_AR
dc.description.filFil: Pradal, Christophe. CIRAD-UMR AGAP; Franciaes_AR
dc.description.filFil: Chelle, Michael. Institut National de la Recherche Agronomique. Ecosys; Franciaes_AR
dc.description.filFil: Prieto, Jorge Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina.es_AR
dc.description.filFil: Louarn, Gaëtan. Institut National de la Recherche Agronomique; Franciaes_AR
dc.description.filFil: Simonneau, Thierry. Institut National de la Recherche Agronomique. LEPSE Montpellier; Franciaes_AR
dc.description.filFil: Lebon, Eric. Institut National de la Recherche Agronomique. Unité Mixte de Recherche; Franciaes_AR
dc.subtypecientifico


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