THE EFFECT OF CUTTING POSITION, WOUNDING, AND IBA ON THE ROOTING OF LEUCOSPERMUM 'SPIDER'
Leucospermum Spider (L. formosum × L. tottum) was selected in South Africa to be used as rootstock for clayey soils. It is relatively easy to propagate from terminal cuttings, but no data have been reported using subterminal cuttings. In order to study the effect of the cutting position (terminal and subterminal), wounding (two shallow and opposite incisions), and IBA treatments (0, 2000, 4000 ppm) on the rooting process, an experiment was carried out in which terminal and subterminal cuttings were rooted with bottom heat (22±2°C) under a fog system. A randomized block design was employed with three replications. The experimental unit consisted of ten cuttings. At six weeks from planting, in subterminal cuttings, wounded cuttings treated with 4000 ppm of IBA gave 97.6% of transplantable cuttings, while in terminal cuttings, the highest value of transplantable cuttings (19.3%) was showed by wounded cuttings treated with the same hormonal concentration. At the end of the trial, at 22 weeks, the type of cutting had an overall effect on rooting (P < 0.05). The combination of wounding + IBA improved rooting significantly.
Rodríguez-Pérez, J.A., de León-Hernández, A.M., Vera-Batista, M.C., Rodríguez-Hernández, I. and Rodríguez-Hernández , H. (2014). THE EFFECT OF CUTTING POSITION, WOUNDING, AND IBA ON THE ROOTING OF LEUCOSPERMUM 'SPIDER'. Acta Hortic. 1031, 77-81
Proteaceae, propagation, terminal cuttings, subterminal cuttings, wounding, hormonal concentration