Reza Salehi is Assistant Professor in the Department of Horticultural Sciences at University of Tehran, Karaj, Iran. He received his Ph.D. degree in physiology of vegetable crops with an emphasis on vegetable grafting from the University of Tehran and the M.S. degree in horticulture with an emphasis in vegetable crop physiology from University of Tehran, Iran. His research interests lie in the broad areas of vegetable grafting and scion-rootstock physiology, controlled environment horticulture, LED lighting and