Investigation of the possibility for production of some stone fruit rootstocks by rooting cuttings

Abstract

This work evaluated the influence of different biostimulators (IBA and NAA) on rooting softwood and hardwood cuttings from some stone fruit rootstocks (Mirabolana, St. Julian A., St. Julian INRA, St. Julian Orleans, GF 8/1, GF 655/2, Alkavo, Gisela 4, Gisela 5, Weiroot 53 and Weiroot 158). The experiment was conducted in an experimental greenhouse at the Institute of Agriculture, Skopje. Rooting biostimulators were applied in 3 variants: a) IBA 2%, b) NAA 0.2%, c) IBA 2% without chemical protection. The GF/8 rootstock had the highest percent of rooted cuttings (50.8%), while some rootstocks (Weiroot 158 and Wieroot 53) produced negligible rooting of the cuttings (1.6%). Hardwood cuttings from the tested rootstocks had better rooting (20.3%) than softwood cuttings (6.0%). The first treatment (IBA 2%) was the most efficient for rooting cuttings (23.1%).

Keywords

• softwood cutting
• hardwood cutting
• rooting