Dr. Bekir Erol AK is a professor and head of the Department of Horticulture at the University of Harran, Faculty of Agriculture. Professor Ak, finished his education from Cukurova University and served as Assistant at the Same University. After completing of his MSc and PhD on Pistachio turned to Sanliurfa University of Harran. He has been invited to numerous international meetings on Pistachio and almond as keynote speaker and is Liaison Officer on Pistachio nut of FAO –CIHEAM Network on Nut. He has organized international and national symposium or meetings on fruit crops. He has on duty international project about pistachio nut which is supported by FAO. His researches on pistachio, almond, olives, pomegranate, figs etc. on fruit trees. These areas include rootstocks, cultivars, mineral nutrition, pollination, in vitro propagation, pruning of trees etc. He has conducted numerous research projects in Sanliurfa, Southeast Anatolian region. He has over 250 publications on different fruit crops.