THE INFLUENCE OF IN VITRO MICROGRAFTING ON VEGETATIVE PROPAGATION OF THE OLIVE CULTIVAR 'ARBEQUINA'
Nodal segments from mature olive (Olea europaea L.) plants of Arbequina were successively micrografted (up to five times) onto juvenile rootstoks. The in vitro rooting competence of regenerated shoots increased from 13 to 61 % from the first to the fifth micrograft respectively. Rooted plants were acclimated under a plastic tunnel and transferred to the greenhouse; after two years these plants were used as source of cuttings for conventional propagation. Micropropagated plants were also analysed by using the SSRs technique and showed to be true to type. Cuttings obtained from donor plants of the fifth micrograft showed a rooting percentage of 92%. This study indicates that revitalization of adult material through micrografting can increase the rooting capacity of cuttings derived from the rejuvenated plants.
Vidoy-Mercado, I., Imbroda-Solano , I., Barceló-Muñoz, A., Viruel, M.A. and Pliego-Alfaro, F. (2012). THE INFLUENCE OF IN VITRO MICROGRAFTING ON VEGETATIVE PROPAGATION OF THE OLIVE CULTIVAR 'ARBEQUINA'. Acta Hortic. 949, 31-34
Olea europaea, rejuvenation, nodal segments, molecular markers