Summary
‘Mendocino’ oregano (Origanum vulgare × applii) cultivated in Argentina has been subject to progressive yield loss as a consequence of continuous vegetative propagation. A method of reducing damage to the shoot tip during sterilization procedures for micropropagation is proposed. Single shoot cuttings are less sensitive to disinfecting substances than green tips. Meristems taken from young plantlets that grew in vitro produced less oxidation during the culture than those dissected immediately after disinfecting from plants grown in the field. This work describes the effects of the growth regulators benzyladenine (BA) and naphthaleneacetic acid (NAA) at various concentrations and combinations on micropropagation of O. vulgare × applii. Treatment with 0.28 μM BA and 0.53 μM NAA gave greatest effiency (mean: 22.2 nodes per plantlet). After 60 d 100% of rooted plantlets could be formed per explant under optimum conditions.
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Goleniowski, M.E., Flamarique, C. & Bima, P. Micropropagation of oregano (Origanum vulgare×applii) from meristem tips. In Vitro Cell.Dev.Biol.-Plant 39, 125–128 (2003). https://doi.org/10.1079/IVP2002361
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DOI: https://doi.org/10.1079/IVP2002361