Dr. Khalid ul Rehman Hakeem is an Associate Professor in the Department of Biological Sciences at King Abdulaziz University, Kingdom of Saudi Arabia. Dr. Khalid completed his Ph.D in botony at jamia hamdard in 2011, india. Dr. Khalid completed his Msc (Environmental botony) atjamia hamdard in 2006. Dr. Khalid complted his Msc.(Ecology & Environment) at Sikkim manipal university of health, medical& technological sciences, Gangtok in 2005, india. Dr. Khalid honored with Recipient of University Grants Commission’s (Govt. Of India) fellowship (JRF) for meritorious students in science (2008-2011). Recipient of the Scientific and Technological Research Council of Turkey (TUBITAK) Fellowships for Visiting Scientists (May-June, 2014). Dr. Khalid ul Rehman Hakeem research interest includes Plant Eco-Physiology, Plant Molecular biology, Pollution research, Environmental studies, Medicinal plant research, Plant pathology, Ecological and Forestry studies.