Effects of different hormone doses on rooting chokeberry's (Aronia melanocarpa L) hard-wood cuttings

In this study, the effects of different IBA doses on the rooting of 'Nero' and 'Viking' aronia cultivars were investigated. Wood cuttings of these cultivars were used in the study. After the cuttings were disinfected, they were immersed in 1500, 2000 and 2500 ppm IBA solutions and planted in perlite medium with three replications. In the cuttings that are kept in rooting system heated from the bottom for sixty days; Callus rate (%), rooting rate (%), root number (number), root thickness (mm), root length (cm) were evaluated. In the study, the best callus formation rate in 'Viking' cultivar was 55.81% at 2000 ppm, the rooting rate was in 'Viking' cultivar at 2500 ppm (73.11%), the best average root number was in 'Viking' cultivar at 2500 ppm IBA application (1.93 units/stem), the best average root thickness was determined at 2500 ppm in 'Viking' cultivar (0.23 mm) and the best average root length was determined at 2500 ppm (0.77 cm) in 'Viking' cultivar.