Effect of auxins and cytokinins on plant regeneration from hypocotyls and cotyledons in niger (Guizotia abyssinica Cass.) |
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Authors: | T R Ganapathi K Nataraja |
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Institution: | 1. Department of Botany, Karnatak University, 580 003, Dharwad, India 2. Plant Biotechnology Section, Bhabha Atomic Research Centre, 400 085, Trombay, Bombay, India
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Abstract: | Tissue cultures were established from hypocotyl and cotyledonary leaf segments ofGuizotia abyssinica Cass. on MS medium supplemented with various concentrations of auxins (IAA, NAA, IBA or 2,4-D) and cytokinins (KN or BA). Expiants cultured on media with cytokinins or in combination with auxins produced shoot buds. Maximum number of shoot buds (20–25 per culture) were differentiated from cotyledonary leaf segments on medium with 2 mg 1-1 each of KN and IBA. Rooting of regenerated shoot buds was acheived on medium with NAA. The obtained plantlets were successfully transferred to soil. |
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