The effect of different levels of indole-3-butyric acid and naphthaleneacetic acid on the rooting of Olea europaea cv. Mari shoot cutting

Olive (Olea europaea) is a tree species whose seedling grows slowly and the propagation by seed is time consuming and increases the probability of genetic alterations. The most appropriate method to propagate olive is the use of shoot cutting as asexual propagation; however, semi-hardwood olive cutting is hard-rooting. The purpose of the current research was to facilitate rooting on shoot cutting of olive cv. Mari using the concentrations of 2, 3, and 4 g l−1 of indolebutyric acid (IBA) and naphthaleneacetic acid (NAA), singularly and in combination with each other. Used cultivation bed was sand. The research was done as a factorial based on a randomized complete block design with three replications. Rooting percentage, root number, root length, and root fresh and dry weights were measured. Based on the results of this experiment the highest percentage of rooting (83.30%), maximum root number (17.09), longest root (22.67 cm), and dry (2.30 g) weight were obtained in cuttings treated with 3 g l−1 NAA together with 3 g l−1 IBA. The highest fresh weight (4.83 g) was obtained in cuttings treated with 4 g l−1 NAA together with 3 g l−1 IBA. The lowest percentage of rooting, maximum root number, shortest root, and lowest fresh and dry weights were obtained in control.