ISHS Acta Horticulturae 474: III International Symposium on Olive Growing
AN IMPROVED METHOD OF PROPAGATING THE OLIVE BY MOUND-LAYERING |
| Authors: | I.C. Porlingis, M. Petridou, D.G. Voyiatzis |
| Keywords: | olive, layers, propagation, IBA, paclobutrazol, etiolation, girdling, wounding |
| Abstract:
An improved method of mound layering which included various treatments for the induction of adventitious roots in layers of the olive cvs Chalkidikis and Kalamon was evaluated. Factors which were tested included girdling and wounding, Tween 20 as a constituent of a lanolin paste, IBA and paclobutrazol incorporated in the paste and the vigor of the stock plants. Girdling and wounding appeared each to be necessary for rooting, their combined effect being more than additional. The lanolin-Tween 20 paste (3:1 w/w) compared with lanolin alone, in the presence of IBA, accelerated rooting and finally increased rooting percentage and root number and weight. There was a positive correlation between IBA concentration in the paste and rooting percentage and root number and weight, with best results obtained at 4% IBA. Paclobutrazol combined with IBA gave positive results in ‘Chalkidikis’ but it was ineffective in ‘Kalamon’. Stock plants of intermediate vigor gave layers with the highest rooting capacity. | |
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