cours / présentation

Plant eco-physiology for crop models

This section presents an overview of plant physiology concepts involved in crop modelling.

Thermal Time normalization - The thermal time normalization allows comparing plant growth on both organogenesis (organ numbering) and development (organ size) aspects.

Light interception: PAR,...

Date de création :

17.05.2015

Auteur(s) :

Ep Heuvelink, Baogui Zhang, Philippe De Reffye, Marc Jaeger, Hatem Krit

Présentation

Informations pratiques

Langue du document : Français
Type : cours / présentation
Temps d'apprentissage : 0
Niveau : licence
Durée d'exécution : 0
Langues : Français
Contenu : vidéo, son, texte
Public(s) cible(s) : enseignant, apprenant
Document : Document HTML
Droits d'auteur : pas libre de droits, gratuit
Licence Creative Commons : Attribution, Pas d'utilisation commerciale, Partage dans les mêmes conditions

Description de la ressource

Résumé

This section presents an overview of plant physiology concepts involved in crop modelling.

Thermal Time normalization - The thermal time normalization allows comparing plant growth on both organogenesis (organ numbering) and development (organ size) aspects.

Light interception: PAR, LAI and Beer-Lambert Law - Only part of the light energy is used in plant crops. A limited fraction of the light spectrum is absorbed by the leaves; this part is constrained by the upper leaf area and decreases in the canopy.

Photosynthesis. Light Use Efficiency - Photosynthesis process converts absorbed light energy to biomass with a ratio proportional to the Light Use Efficiency.

Density effect - At the individual plant level, density limits light absorption capabilities, and thus dynamically limits the biomass production.

Biomass common pool - Biomass produced by the source Organs (leaves) builds a common storage pool, to be share among all competing growing organs.

Organ competition - Sinks Organs growing compete for biomass allocation. They are sinks.

Process Bases Models - Process Based Models or Crop models aim to model and simulate the biomass production.

  • Granularité : grain
  • Structure : collection

Intervenants, édition et diffusion

Intervenants

Créateur(s) de la métadonnée : UVED

Diffusion

Cette ressource vous est proposée par :UVED - accédez au site internetUVED - accédez au site internet

Fiche technique

Identifiant de la fiche : oai:uved.fr:3439.plant-eco-physiology-for-crop-models
Identifiant OAI-PMH : oai:uved.fr:3439.plant-eco-physiology-for-crop-models
Version : v1
Statut de la fiche : final
Schéma de la métadonnée : oai:uved:Cemagref-Marine-Protected-Areas
Entrepôt d'origine : UVED

Voir aussi

UVED
UVED
17.05.2015
Description :

GreenLab is a mathematical dynamic model aiming to model and simulate plant structure establishment and production. It differs from computational models by the fact that both development and functional processes are described by equations. The model therefore quantifies structure (the number of ...

  • FSPM
  • process based model
  • organ cohorts
  • dynamic system
  • models
  • fitting
  • agronomy
  • stochastic model
  • mathematical formalism
  • equation
  • physiological age
  • applications
  • modèle de culture
  • cohortes d'organes
  • système dynamique
  • modèles
  • calibration
  • agronomie
  • modèle stochastiq ...
UVED
UVED
17.05.2015
Description :

Using the identification of several morphological criteria and considering the plant as a whole, from germination to death, architectural analysis is essentially a detailed, multilevel, comprehensive and dynamic approach to plant development.

Completed by precise morphological observations and a ...

  • Botany
  • plant architecture
  • axis typology
  • réitération
  • architectural unit
  • sequence of development
  • physiological age
  • botanique
  • architecture des plantes
  • typologie d'axes
  • unité architecturale
  • séquence de développement
  • âge physiologique
  • Plants
  • Specific parts of and physiological ...