Physical and Chemical Treatment Effects on the Germination of Pear Seeds (Pyrus Communis L.)

Pear (Pyrus communis L.) is one of the important species fruits that are widely cultivated in Syria. Seed propagation pear an way to obtain seedlings be used as grafting assets, but method seed difficult due effect dormancy factors germination. The research was carried out during 2020 and 2021 study effects stratification for three periods (30–60–90 days) using ascorbic acid at a concentration 100 mg/L, potassium nitrate 0.3% breaking seeds. results showed best averages were 60 days gave percentage germination 31%, speed 1.28 seeds/day. Additionally, treatments soaking with or (without stratification) contributed improving 7.67% 3.67%, respectively, significant differences compared control (1%). treatment acid, where reached 49.67% increased 3.91 seeds/day, addition reducing period required 21 days.