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Aim of the study: This study was conducted to determine seed morphologies and the effects of pretreatments on germination of common hawthorn (Crataegus monogyna Jac.) and azarole (Crataegus azarolus var. pontica (K. Koch.) K. I. Chr) seeds. Material and methods: Ripe fruits of the common hawthorn and azarole seeds were collected from trees growing in Hatila Valley and Pamukcular Village in September 2016 in Artvin, Turkey. The seeds were subjected to varying durations of ash solution, sulfuric acid, hydrogen peroxide, ethanol and combinations of ash solution and sulfuric acid pretreatments. The seeds were sown according to a randomized complete block design with four replications. Main results: Germination of azarole seeds (37.31%) was higher than that of common hawthorn seeds (16.53%). The ash solution pretreatments did not affect the germination of the common hawthorn seeds. Hovewer, it was found to be more effective (p |
