Efficient plant regeneration from cotyledon and primary leaf explants of lettuce (Lactuca sativa L.)

The efficient system for plant regeneration from cotyledon and primary feat explants of lettuce was established. Plant regeneration efficiency was shown 91.3% from cotyledon and 85.9% from primary leaf explants of variety `Jungtongpogi` in KN medium. Plant regeneration efficiency was also estimated with various plant regeneration media in variety` Chungchima`, which was lowest plant regeneration efficient showing 35.4% from cotyledon and 30.3% from prima leaf explants in KN medium. Kl medium increased 77.9% and 80.7% of plant regeneration efficiencies from cotyledon and primary leaf explants of variety `Jungtongpogi` were cultured on KN medium. In case of varie쇼 ‘Chungchima`, efficient plant regeneration was shown when primary leaf explants were cultured on SH and KI media.