Here an efficient protocol for micropropagation of black gram [Vigna mungo (L.) Hepper] cv. VBN 3 is reported. The deembryonated cotyledonary explants were cultured on MS medium containing different concentrations of plant growth regulators. The maximum frequency (72%) of direct shoot regeneration (devoid of callus phase), multiple shoot induction and shoot elongation was achieved from culturing the explants on MS medium containing 3.0 mg/l of 6-benzylaminopurine (BAP). Up to 65% of the regenerated shoots were rooted on MS medium containing 0.25 mg/l of α-naphthalene acetic acid (NAA) within 3 weeks after subculturing. The in vitro-raised plantlets were successfully hardened first under culture room conditions with 62% survival rate and then in greenhouse. The identified regeneration system could be efficiently used in various in vitro manipulation studies in black gram as well.
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