Embryogenic callus was induced from the hypocotyl region of seedlings germinated from immature embryos of orange jessamine (
Murraya paniculata (L.) Jack) on Murashige & Tucker (1969) medium containing 50 g l
-1 sucrose, 5.0 mg l
-1 benzyladenine, 2.5 mg l
-1 2,4-dichlorophenoxyacetic acid and 600 mg l
-1 malt extract. Isolated protoplasts divided to produce callus on Murashige & Tucker (1969) medium containing 50 g l
-1 sucrose, 0.01 mg l
-1 gibberellin A
4+7 and 600 mg l
-1 malt extract. Callus developed to plantlets via somatic embryogenesis on Murashige & Tucker (1969) medium with 50 g l
-1 lactose but no plant growth regulators. These plantlets flowered
in vitro on half strength Murashige & Tucker (1969) medium containing 50 g l
-1 sucrose after 2 months culture.
Key words floral bud formation - orange jessamine - plating efficiency - precocious flowering