Micropropagation ofUraria picta, a medicinal plant, through axillary bud culture and callus regeneration

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Abstract

Micropropagation of Uraria picta, a leguminous herb, was achieved through axillary bud culture and nodal callus culture. Bud break was best when nodes were cultured on Murashige and Skoog (1962) (MS) medium supplemented with 2.6 μM α-naphthalene acetic acid and 4.4 μM N6-benzyladenine. Optimum shoot multiplication was observed in adenine sulphate at 2.47 μM concentration. Competent callus was initiated around the nodal ring of the explant on the basal medium supplemented with cytokinins and auxin (α-naphthalene acetic acid and N6-benzyladenine), which regenerated into new profusely growing shoots on transferring to 0.13 μM N6-benzyladenine. Shoots elongated to 5 node length with 1.11 μM N6-benzyladenine were rooted on half-strength MS basal medium. The rooted plants were successfully established with 80% survival. About 400 such plants were transferred to the field.

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