Journal
SCIENTIA HORTICULTURAE
Volume 120, Issue 1, Pages 22-26Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scienta.2008.09.010
Keywords
Blackberry; In vitro; Regeneration; Rubus; Thidiazuron; Tissue culture
Categories
Funding
- NCGR, Corvallis, USA
- Indian Agriculture Statistical Research Institute
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High frequency and direct (without callus) plant regeneration was achieved from whole leaf explants of thornless blackberry (Rubus hybrid) cv. Black Satin (EC No. 381258; PI No. 553272) in vitro. Leaf blade explants from 1-, 3- and 5-month-old mother cultures were cultured on Murashige and Skoog (MS) medium with thidiazuron (TDZ), N(6)-benzylaminopurine (BAP), indol-3-butyric acid (IBA) and alpha-naphthalene acetic acid (NAA), alone or in combination. Three-month explants cultured on 0.02 mg l(-1) TDZ produced a high regeneration frequency (91.7%) and the most shoots/leaf explant (17.3). The shoot primordia developed within 3 weeks from the point of detachment of the petiole from the leaf blade. The age of the explant source significantly affected the shoot regeneration potential of the leaf explants. Leaves excised from 3-month-old in vitro-cultured shoots performed better than those from 1- and 5-month-old shoots. Shoots rooted best on half-strength MS basal medium with 0.5 mg l(-1) IBA and 90% of the plantlets survived acclimatization. The regenerated plantlets were morphologically similar to the mother plants. (C) 2008 Elsevier B.V. All rights reserved.
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