Embryogenic callus cultures of Korean native Seosanjong of ginger(Zingiber of officinale Rosc.) were induced through stem explants taken from in vitro shoot-tip cultures. Among the four concentrations of 2,4-D tested in Murashige and Skoog medium, 0.5 and 1 mg/L of 2,4-D was most effective in inducing embryogenic callus. Leaf explants did not express any new morphogenetic response in all 2,4-D concentrations tested. Plantlets transferred to hormone-free MS medium were developed and successfully acclimatized under greenhouse.

• Man-Hyun Jo
• In-Ki Ham
• Nam-Hyun Song
• In-Shik Woo