ISHS Acta Horticulturae 505: VII International Symposium on Rubus and Ribes
PROPAGATION OF BLACKBERRIES (Rubus spp.) BY STEM CUTTINGS USING VARIOUS IBA FORMULATIONS |
| Authors: | A. L. Busby, David G. Himelrick |
| Keywords: | Blackberry, propagation, cuttings, hormone, IBA |
| Abstract:
Four cultivars of blackberry (Rubus spp.) were propagated in July under intermittent mist by rooting two-node softwood stem cuttings treated with indole-3-butyric acid (IBA). IBA was applied in either a talc preparation or as a liquid quick dip at 0.1, 0.3 or 0.8% concentrations, with non-treated cuttings as a control. Differences in root development were evident and were affected by cultivar, IBA concentration, and method of application. Compared to non-treated cuttings, root development increased on 'Navaho' thornless blackberry cuttings treated with 0.3 and 0.8% KIBA quick dip. Cuttings of 'Chester' thornless blackberry treated with 0.1 and 0.8% IBA in talc and 0.3 and 0.8% KIBA quick dip produced better root systems than non-treated cuttings. Treatment of 'Cheyenne' thorny blackberry with 0.3% IBA in talc and 0.8% KIBA quick dip increased rooting compared to non-treated cuttings. Cuttings of 'Olallie' thorny blackberry rooted better than non-treated cuttings with 0.1 and 0.3% IBA in talc and 0.3% KIBA quick dip. | |
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