Fitting a functional-structural growth model with plant architectural data

Zhan, Z.G.; De Reffye, Philippe; Houllier, François; Hu, Bao-Gang

Fitting a functional-structural growth model with plant architectural data

2003

Zhan, Z.G. | De Reffye, Philippe | Houllier, François | Hu, Bao-Gang

GreenLab is a recurrent discrete-time functional-structural model of plant growth and architecture. A method is presented estimating its parameters: the model is fitted to plant morphological and architectural data observed at one point of time. Since GreenLab output variables (number, size and fresh mass of organs) implicitly and nonlinearly depend on the model parameters, the fitting problem is solved by minimizing a generalized least-squares criterion and by implementing an iterative procedure. Fitting is satisfactorily performed on unbranched plants (cotton, maize, sunflower) using real data. The method is extended to more complex plants (i.e. with branches): a preliminary test on a virtual tree shows that the fitting algorithm also applies to such structured plants. (Résumé d'auteur)

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Mots clés AGROVOC

anatomie végétale arbre croissance gossypium helianthus annuus modèle de simulation modèle mathématique port de la plante zea mays

Informations bibliographiques

Editeur

Tsinghua University Press

Langue

anglais

Licence

http://agritrop.cirad.fr/520435/1/ID_520435.pdfCirad licenseinfo:eu-repo/semantics/restrictedAccesshttps://agritrop.cirad.fr/mention_legale.html

Type

Conference Object; Conference Part; Conference Paper; Conference Part; Conference Proceedings

Source

Tsinghua University PressPlant growth modeling and applications. Proceedings PMA03 : The First International symposium on plant growth modeling, simulation, visualization and their applications, Beijing, China, October 13-16, 2003

Sur AGRIS depuis: 2019-03-15

Format: AGRIS AP

Fournisseur de données

Cette notice bibliographique a été fournie par Centre de coopération internationale en recherche agronomique pour le développement

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Liens

http://agritrop.cirad.fr/520435/ http://agritrop.cirad.fr/520435/1/ID_520435.pdf http://agritrop.cirad.fr/520416/

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Fitting a functional-structural growth model with plant architectural data

2003

Mots clés AGROVOC

Informations bibliographiques