Adventitious Shoot Regeneration and Plant Production from Explants of Apios americana

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  • 1 Department of Horticulture, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA 70803

Shoots were regenerated from callus of Apios americana Medikus (apios, groundnut) using internodal explants from in vitro-germinated seedlings and from sprouted tubers on a modified Murashige and Skoog (MS) basal medium. Shoot regeneration was observed over a range of 2iP and IBA combinations. GA3 increased the number of shoots regenerated per epicotyl explant. The most efficient regeneration (≈90%) was with internodal epicotyl explants on 100 μm 2iP, 0.5 μm IBA, and 1.5 μm GA3. Regenerated shoots were rooted on liquid and solid MS medium with 0.5 μm IBA; however, rooting was more successful on the liquid medium. About 60% of rooted plants were successfully established in pots. Chemical names used: N-(3-methyl2-butenyl)-1 H-purin-6-amine (2iP), 1 H-indole-3-butanoic acid (IBA), gibberellic acid (G A3).

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