This research was conducted at Saalo Research Station of Deir Ezzor Research Center during two seasons (2005-2006). It aimed at defining the morphological qualities of the pollens of nine males used for pollination in the Eastern region of Syria. All the studied males demonstrated a high vitality that exceeded 80% with F18 having the maximum rate (92%). The annual germination rate did not exceed 70%, with the minimum germination (56%) achieved by F32. Pollens' storage took place at three different temperatures (25, 5 and -5 degrees centigrade) where a considerable amount of pollens kept their vitality and germination capacity. Storage under -5ºc was considerably better than the other temperatures with an average vitality of 66% and an average germination of 57%. Results relating to the influence of some chemicals (sucrose, boron, calcium and GA3) on pollens germination indicated that the average germination is positively linked to the sucrose content in the culture. The highest germination rate (41%) was achieved at a sucrose content of 15%. The results also indicated that the germination is negatively linked to the content of boron, calcium and GA3. The concentrations of 50 ppm for boron and calcium and 100 ppm for GA3 achieved the best germination rates (53%, 48%, and 56% respectively). With regards to influence of temperature on the germination rate, results revealed that the temperature 25ºc had realized the maximum germination rate (62%) after 24 hours of incubation.

Key Words :Pollen Grains, Morphological Qualities, Palms Males, Pollination, Effective Factors