Morphogenetic responses from in vitro cultured seedling explants of mung bean (Vigna radiata L. Wilczek)

The morphogenetic responses of seedling explants of mung bean (Vigna radiata L. Wilczek cv ML-5) were studied in vitro. Direct induction of shoots/plants was possible from shoot tip, cotyledon and cotyledonary node explants. Dedifferentiation of the explants viz; Shoot tip, cotyledons, cotyledonary node, primordial leaves and roots was obtained on basal medium supplemented with auxin and cytokinin. Shoot regeneration was limited to primary calli while rhizogenesis was of common occurrence in established calli. In addition to differences in hormonal requirements, the various explants showed preferential growth in different basal media.