HydroShoot: 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)
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...
| Autores principales: | , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Oxford Academic Press
2019
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| Materias: | |
| Acceso en línea: | https://academic.oup.com/insilicoplants/article/1/1/diz007/5519776 http://hdl.handle.net/20.500.12123/6431 https://doi.org/10.1093/insilicoplants/diz007 |
| _version_ | 1855035673711476736 |
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| author | Albasha, Rami Fournier, Christian Pradal, Christophe Chelle, Michael Prieto, Jorge Alejandro Louarn, Gaëtan Simonneau, Thierry Lebon, Eric |
| author_browse | Albasha, Rami Chelle, Michael Fournier, Christian Lebon, Eric Louarn, Gaëtan Pradal, Christophe Prieto, Jorge Alejandro Simonneau, Thierry |
| author_facet | Albasha, Rami Fournier, Christian Pradal, Christophe Chelle, Michael Prieto, Jorge Alejandro Louarn, Gaëtan Simonneau, Thierry Lebon, Eric |
| author_sort | Albasha, Rami |
| collection | INTA Digital |
| description | 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 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA6431 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Oxford Academic Press |
| publisherStr | Oxford Academic Press |
| record_format | dspace |
| spelling | INTA64312019-11-29T14:25:19Z HydroShoot: 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) Albasha, Rami Fournier, Christian Pradal, Christophe Chelle, Michael Prieto, Jorge Alejandro Louarn, Gaëtan Simonneau, Thierry Lebon, Eric Vid Vitis Vinifera Intercambio de Gases Cubierta de Copas Modelos de Simulación Estrés de Sequia Grapevines Gas Exchange Canopy Simulation Models Drought Stress Canopia Déficit Hídrico 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 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. EEA Mendoza Fil: Albasha, Rami. Institut National de la Recherche Agronomique. LEPSE Montpellier; Francia Fil: Fournier, Christian. Institut National de la Recherche Agronomique. LEPSE Montpellier; Francia Fil: Pradal, Christophe. CIRAD-UMR AGAP; Francia Fil: Chelle, Michael. Institut National de la Recherche Agronomique. Ecosys; Francia Fil: Prieto, Jorge Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina. Fil: Louarn, Gaëtan. Institut National de la Recherche Agronomique; Francia Fil: Simonneau, Thierry. Institut National de la Recherche Agronomique. LEPSE Montpellier; Francia Fil: Lebon, Eric. Institut National de la Recherche Agronomique. Unité Mixte de Recherche; Francia 2019-11-29T14:23:29Z 2019-11-29T14:23:29Z 2019-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://academic.oup.com/insilicoplants/article/1/1/diz007/5519776 http://hdl.handle.net/20.500.12123/6431 2517-5025 https://doi.org/10.1093/insilicoplants/diz007 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Oxford Academic Press In silico Plants 1 (1) : diz007 (2019) |
| spellingShingle | Vid Vitis Vinifera Intercambio de Gases Cubierta de Copas Modelos de Simulación Estrés de Sequia Grapevines Gas Exchange Canopy Simulation Models Drought Stress Canopia Déficit Hídrico Albasha, Rami Fournier, Christian Pradal, Christophe Chelle, Michael Prieto, Jorge Alejandro Louarn, Gaëtan Simonneau, Thierry Lebon, Eric HydroShoot: 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) |
| title | HydroShoot: 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) |
| title_full | HydroShoot: 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) |
| title_fullStr | HydroShoot: 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) |
| title_full_unstemmed | HydroShoot: 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) |
| title_short | HydroShoot: 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) |
| title_sort | hydroshoot 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 |
| topic | Vid Vitis Vinifera Intercambio de Gases Cubierta de Copas Modelos de Simulación Estrés de Sequia Grapevines Gas Exchange Canopy Simulation Models Drought Stress Canopia Déficit Hídrico |
| url | https://academic.oup.com/insilicoplants/article/1/1/diz007/5519776 http://hdl.handle.net/20.500.12123/6431 https://doi.org/10.1093/insilicoplants/diz007 |
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