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Impact of topology on plant functioning : a theoretical analysis based on the GreenLab model equations

Letort Véronique, Cournède Paul-Henry, De Reffye Philippe. 2010. Impact of topology on plant functioning : a theoretical analysis based on the GreenLab model equations. In : Plant growth modeling and applications. Proceedings PMA09 : The Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, Beijing, China, 9-13 November 2009. Li Baoguo (ed.), Jaeger Marc (ed.), Guo Yan (ed.). China Agricultural University, CIRAD. Los Alamitos : IEEE Computer Society, pp. 341-348. ISBN 978-0-7695-3988-1 International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA09). 3, Pékin, Chine, 9 November 2009/13 November 2009.

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Abstract : A growing interest emerges for the application of plant functional-structural models to study the influence of topological development on plant growth. This kind of study is classically done through virtual experiments on simulated plants to analyze the effects of architectural changes on the model outputs. In this paper, we take advantage of the mathematical formalism developped for describing plant structure and growth in the GreenLab model to perform a theoretical analysis of the importance of topological development for plant functioning. Using the basic formulation of the model, it is possible to solve analytically the equation giving the limit biomass production under stable environment and to estimate the sensitivity of this limit value to the parameters of topological development. Reciprocally, we analyze the conditions under which plants with different architectures can have the same trajectory of biomass production in models based on Beer-Lambert-like formulations. (Résumé d'auteur)

Mots-clés Agrovoc : Modèle mathématique, Modèle végétal, Port de la plante, Anatomie végétale, Développement biologique, Croisement, Biomasse

Classification Agris : U10 - Mathematical and statistical methods
F50 - Plant structure
F62 - Plant physiology - Growth and development

Auteurs et affiliations

  • Letort Véronique, Ecole centrale Paris (FRA)
  • Cournède Paul-Henry, Ecole centrale Paris (FRA)
  • De Reffye Philippe, CIRAD-BIOS-UMR AMAP (FRA)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/556090/)

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