This experiment was conducted at the Faculty of Agriculture, Damascus University (2001 – 2002), to assess the effect of radiostimulation of seeds of two durum wheat varieties (Hourani and Cham 3) on some morphological traits and yield components, by using three doses of gamma rays (10, 15, and 20 GY). The study showed significant differences among radiation doses. The high doses (15, 20 GY) caused a significant deterioration in growth and development of plants, as well as yield components of the two varieties.