Micro propagation of banana (Musa sp.) cv. Agnishwar by In v | 16419
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Micro propagation of banana (Musa sp.) cv. Agnishwar by In vitro shoot tip culture


Sazedur Rahman, Nirupam Biswas, Mehedi Hassan, Golam Ahmed, ANK Mamun, Rafiqul Islam, Moniruzzaman, Enamul Haque

The present study was to investigate the best plant growth regulators for shoot proliferation and multiplication; and to determine the optimum concentrations of phytohormones for shoot tip culture of banana cv. Agishwar by observing the effect of different culture conditions during induction. A micropropagation protocol for banana (Musa sp.) cv. Agnishwar was established by using shoot tip culture. Shoot tips obtained by removing leaf sheaths from sucker were cultured aseptically in MS (Murashige and Skoog) medium supplemented with different concentrations of cytokines viz. 6-benzylaminopurine (BAP), kinetin (kin), N6 - (2-isopentyl) adenine (2iP) for multiplication of shoot and auxins viz. Indole-3butyric acid (IBA), α αα α-naphthalene acetic acid (NAA) for induction of root. Maximum multiplication (95%) was obtained in MS medium containing 4.0 mg/1 BAP. The highest average number of shoots for each explant (5.9) was found in MS medium fortified with 4.0 mg/l BAP while maximum elongation of shoot (4.9cm) was observed in MS medium having 5.0 mg/l BAP. IBA at a concentration of 1.0 mg/l was found most suitable for rooting of shoot. The rooted shoots were acclimatized and successfully transferred to plastic pots. After hardening, they were transferred to the main field and the survival rate was around 90%.This protocol might be used for the massive in vitro production of the plantlets of banana cv. Agnishwar.

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