Rooting of Hackberry (Celtis australis L) Hardwood Cuttings: Effects of IBA Doses and Hackberry Types

The objective of the study was to determine the rooting ability of hackberry (celtis australis l.) hardwood cuttings. in the first year studies, hardwood cuttings of hackberry were treated with 2, 4, 6, 8 or 10 g/l iba and cuttings were placed into a bottom-heated system in the greenhouse. perlite was used as a rooting media. in the second year, rooting potential of five types of hackberry was examined. in the both of the studied years, the results were taken after 100 days and the rooting rate, root number, root length and survival rate in adaptation stage were determined. rooted cuttings were transferred to the nursery conditions for the next year growing period and sapling height, mainstem diameter and number of leaves were determined. maximum rooting rate and root number were supplied with 6 g/l iba (83.33% and 9.34 roots, respectively). higher concentrations of iba were affected negatively the root growth. the rooting potential of the hackberry types showed dissimilarity and the best rooting rate was obtained from type t5 (86.67%). survival rates were very high on the acclimatization stage and were dependent on the root quality. type t5 saplings showed the best growth (125.85 cm plant height, 18.30 mm stem diameter and 170.81 leaf number).