Modelling architecture and growth patterns of Posidonia oceanica

Molenaar Heike, Barthélémy Daniel, De Reffye Philippe, Meinesz Alexandre, Mialet Isabelle. 2000. Modelling architecture and growth patterns of Posidonia oceanica. Aquatic Botany, 66 : pp. 85-99.

Journal article ; Article de revue à facteur d'impact
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Autre titre : Modélisation de l'architecture et de la croissance chez Posidonia oceanica

Abstract : The architecture and growth pattern of #Posidonia oceanica# was studied near Cannes, France in the Mediterranean from 80 samples collected at 6 m depth. Mathematical models were constructed in order to quantify the distribution of internodes within growth units from different morphological types of axes and branching orders. The results revealed that the frequency distribution of the number of internodes per growth unit on plagiotropic axes changed according to branching order, passing from a Poisson distribution on order-1 axes, to a combination of a Poisson and a binomial distribution on order-2 axes, to a binomial distribution on order-3 axes. The production of internodes per growth unit on orthotropic axes followed a binomial frequency distribution. The distribution of internodes produced by transitional -plagiotropic growth units was binomial despite the visual plagiotropic aspect of these units. The model shows that each year two statistically independent series of branches, with different probabilities according to branching order, occur in #P. oceanica#. The results are consistent with growth being regulated by an internal biological clock, which emits three signals during the course of the year. (Résumé d'auteur)

Mots-clés Agrovoc : Posidonia, Port de la plante, Croissance, Modèle de simulation, Entre noeud, Ramification, Tige

Mots-clés géographiques Agrovoc : France

Mots-clés complémentaires : Architecture végétale

Classification Agris : U10 - Computer science, mathematics and statistics
F50 - Plant structure
F62 - Plant physiology - Growth and development

Auteurs et affiliations

  • Molenaar Heike, Université de Nice (FRA)
  • Barthélémy Daniel, CIRAD-AMIS-AMAP (FRA) ORCID: 0000-0003-3187-2517
  • De Reffye Philippe, CIRAD-AMIS-AMAP (CHN)
  • Meinesz Alexandre, Université de Nice (FRA)
  • Mialet Isabelle, CIRAD-AMIS-AGRONOMIE (FRA)

Autres liens de la publication

  • Document en bibliothèque
  • Localisation du document : CD_BR9281 [(Bibliothèque de Lavalette)] ; CD_BR8252 [(Bibliothèque de Lavalette)]

Source : Cirad - Agritrop (

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