Spread of ‘Koroneiki’ Olive by the cutting method at different times, AIB concentrations and the presence of leaves

ABSTRACT

This study aimed to evaluate the influence of timing, IBA concentration and presence of leaves on cutting propagation of olive 'Koroneiki'. Cuttings with 10 cm length were collected from the middle portion of branches of three years old plants at the Federal Technological University of Paraná, between June 2013 and March 2014. The experiment was carried out in a completely randomized design with four replications of 10 cuttings each, in a triple factorial [timing (June, September, December, March); number of pairs of leaves (0, 1 and 2) and IBA concentrations (0, 1.000, 2.000 and 3.000 mg L-1)]. IBA treatment consisted in fast immersion of cutting base for 5 seconds, then planted in tubes containing commercial substrate. Thereafter, the cuttings were manteined in intermittent mist condition for 60 days. At the end of this period, the survival (%), callus formation (%), number of shoots per cutting and rooting (%) were measured. For cuttings more survival, roots and callus formation is necessary to maintain at least one pair of leaves on the cuttings. In December, it is not recommended to propagate by cuttings independent of the auxiliary techniques. Without the use of IBA, it is recommended to perform the cuttings in June and September since kept a pair of leaves. The cutting when carried out in March must be kept at least a couple of sheets in combination with doses of 2.000 or 3.000 mg L-1 IBA.

Key words:
Propagation; Olea europaea L; Cuttings