ABSTRACT
Crop transpiration is the most important energy dissipation mechanism determining the thermal environment of the protected crops. Through the transpiration mechanism, the crop builds its own climate that in turn influences the transpiration.[1] As already noted by different authors,[2-4] protected crop transpiration analysis is coupled to the energy balance of the whole system and depends strongly on the greenhouse characteristics (cladding material) and on the climate control equipment (shading screen, fog system, heating, and ventilation). Therefore, reliable estimations for plant requirements must take these factors into account and conversely we must consider the mechanisms of coupling between crop transpiration and the greenhouse climate.
