Photosynthetically Active Radiation (PAR) is the driving force for photosynthesis and thus for the growth and production of plants. Plentiful solar radiation provides semi-arid and arid regions such as Saudi Arabia with great potential for agricultural operations. ESTIDAMAH carries out research with primary goal water saving techniques and greenhouse design adapted to the Saudi climate conditions. Increase in locally produced fresh vegetables can be the result of increasing the productivity of the cultivation systems, meaning achieving a higher efficiency of processes that convert sun radiation into marketable products. Light use efficiency can be used as a criterion to compare different production systems.
