The installation allows an analyses of large plant collections (2400 plants). It is composed of conveyor belts and of three 3-D image acquisition cabin with views from different angles (13 usually, 37 for wheat). Plant architecture, leaf area, plant volume/biomass and transpiration rate are estimated with a 24h definition (6 for transpiration). Estimates of light interception, stomatal conductance and radiation use efficiency are then calculated on virtual canopies based on 3D plants for simulation of genotypes in hundreds of climates.