Abstract

Multiple shoot formation from the plumular apices excised from mature embryos of cowpea cv. Akkiz was obtained after pulse treatment with 10 mg/l BAP for 5 days followed by culture on MS medium containing 0.25, 0.50, 0.75 and 1.00, 1.25 mg/l BAP – with or without 0.10 mg/l NAA. Callus induction and shoot regeneration was recorded on all cultures containing BAP with or without NAA. However, inclusion of 0.1 mg/l NAA had positive effect on callus diameter and shoot length. Maximum mean number of 7.11 shoots per explant were obtained on MS medium containing 1.00 mg/l BAP. Longer shoots were recorded on MS medium containing various concentration of BAP+ 0.1 mg/l NAA compared to those containing various concentrations of BAP singly. All shoots cultured on MS medium containing 1 mg/l BAP were rooted on MS medium containing 0.50 mg/l IBA. Rooted plants were acclimatized at room temprature in soil contained in pots. All plants flowered and set seeds in the greenhouse after 3 months.

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