Tomato growth modeling based on interaction of its structure-function

Dong Q.X., Wang Y.M., Barczi Jean-François, De Reffye Philippe, Hou J.L.. 2003. Tomato growth modeling based on interaction of its structure-function. In : Plant 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. Hu Bao-Gang (ed.), Jaeger Marc (ed.). Institut d'automatique-LIAMA, Chinese Agriculture University. Pékin : Tsinghua University Press, pp. 250-262. ISBN 7-302-07140-3 International Symposium on Plant Growth Modeling, Simulation, Visualization and their Applications (PMA03). 1, Pékin, Chine, 13 October 2003/16 October 2003.

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Abstract : A new approach to model tomato's growth in view of the interaction between its physiological function and morphological structure was discussed. The finite state automaton called reference axis based on physiological age scale (i.e. structure model) was well applied to build tomato's topological structure and 3D geometrical structure including its leaf shape, leaf orientation and leaf insertion angle; while the tomato organ's size was simulated using the hydraulic model which was based on plant's transpiration law. We gave a detailed conceptual description of tomato growth axis and the spatial arrangement of its organs (internode, petiole, leaf truss, fruit and etc) according to reference axis model. With the correct computation of its topological structure, the organ's volume, surface, diameter and length were computed according to matter production and matter allocation mechanism at each developmental phase. The beta law was applied to simulate the sink variation. The parameters of the model were estimated from the data of given tomato (2001.5-7) using least square method. Good validation was obtained and the architecture of tomato at different stages was reproduced. (Résumé d'auteur)

Mots-clés Agrovoc : Solanum lycopersicum, Croissance, Modèle de simulation, Port de la plante, Physiologie végétale, Fonction physiologique, Ramification, Donnée de production

Classification Agris : U10 - Mathematical and statistical methods
F50 - Plant structure
F62 - Plant physiology - Growth and development
F63 - Plant physiology - Reproduction

Auteurs et affiliations

  • Dong Q.X., CAU [China Agricultural University] (CHN)
  • Wang Y.M., CAU [China Agricultural University] (CHN)
  • Barczi Jean-François, CIRAD-AMIS-AMAP (CHN)
  • De Reffye Philippe, CIRAD-AMIS-AMAP (FRA)
  • Hou J.L., CAU [China Agricultural University] (CHN)

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