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.
