Determination of Suitable Treatments for Braking the Coat Dormancy Stage of Pinus Pinea L. Seeds, Collected from Different Ecological Sites in Syria

Seeds of Pinus pinea L .were collected from AL Kusaibia site near Aleppo (altitude ٢٩٥m) and from AL Bustan site near Mesiaf (altitude ٨٠٠m). which have different ecological conditions in order to recommend the best optimal treatment for breaking the coat dormancy stage of seeds pre-sowing in both sites. Six different methods of treatment suchas, mechanical treatment, treatment with boiling water, treatment with light sucher acid (H٢SO٤) for ١٥, ٣٠, ٤٥ minutes, and with normal water for ٢٤ hours. were applied to break the coat dormancy of ٦٠٠ seeds in each sites.