URI oai:uved.fr:3439.plant-eco-physiology-for-crop-models Plant eco-physiology for crop models fre <p>This section presents an overview of plant physiology concepts involved in crop modelling.</p> <p>Thermal Time normalization - The thermal time normalization allows comparing plant growth on both organogenesis (organ numbering) and development (organ size) aspects.</p> <p>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.</p> <p>Photosynthesis. Light Use Efficiency - Photosynthesis process converts absorbed light energy to biomass with a ratio proportional to the Light Use Efficiency.</p> <p>Density effect - At the individual plant level, density limits light absorption capabilities, and thus dynamically limits the biomass production.</p> <p>Biomass common pool - Biomass produced by the source Organs (leaves) builds a common storage pool, to be share among all competing growing organs.</p> <p>Organ competition - Sinks Organs growing compete for biomass allocation. They are sinks.</p> <p>Process Bases Models - Process Based Models or Crop models aim to model and simulate the biomass production.</p> plant eco-physiology thermal time density sources sinks biomass production LAI biomass partitioning Process based models plane éco-physiologie temps thermique densité puits production de biomasse allocation de biomasse modèle de culture Plants Specific parts of and physiological systems in plants LOMv1.0 collection LOMv1.0 1 LOMFRv1.0 image en mouvement LOMFRv1.0 son LOMFRv1.0 texte v1 LOMv1.0 final LOMv1.0 author BEGIN:VCARD VERSION:3.0 N:;;;; FN:Ep Heuvelink ORG:Wageningen University - HPC Group EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 LOMv1.0 author BEGIN:VCARD VERSION:3.0 N:;;;; FN:Baogui Zhang ORG: EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 LOMv1.0 author BEGIN:VCARD VERSION:3.0 N:;;;; FN:Philippe De Reffye ORG: EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 LOMv1.0 author BEGIN:VCARD VERSION:3.0 N:;;;; FN:Marc Jaeger ORG: EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 LOMv1.0 author BEGIN:VCARD VERSION:3.0 N:;;;; FN:Hatem Krit ORG: EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 URI oai:uved.fr:3439.plant-eco-physiology-for-crop-models LOMv1.0 creator BEGIN:VCARD VERSION:3.0 N:;;;; FN: ORG:UVED URL:http://www.uved.fr EMAIL;TYPE=INTERNET: END:VCARD 2015-05-17 LOMv1.0 LOMFRv1.0 SupLOMFRv1.0 fre text/html http://greenlab.cirad.fr/GLUVED/html/P1_Prelim/EPhysio/Physio_intro.html 0 LOMv1.0 lecture LOMv1.0 teacher LOMv1.0 learner LOMFRv1.0 licence 0 fre LOMv1.0 no LOMv1.0 yes Licence Creative Commons : Attribution, Pas d'utilisation commerciale, Partage dans les mêmes conditions LOMv1.0 discipline CDD 22e éd.