 using proper greenhouse covering materials and provide a suitable environment for plant growth in Saudi Arabia. Clear glass and diffuse glass were found to be more effective than polycarbonate in terms of cucumber productivity, water and energy use efficiency. Diffuse glass compartment revealed 16% lower of water consumption than other covering materials. Therefore, using diffuse glass as a greenhouse cover material has a strong positive influence on crop productivity under Saudi Arabia climate. This article was authored by Abdulaziz R.L. Harbi, Jukh Kampan, Mohamed Sharraf and others.