2 The optimum explant of Calycanthus chinensis to adduce callus is the stalk passage the culture medium constitutes: 1/2 MS+2,4-D 0.8 mg/L+BA 0.5 mg/L+white sugar 30 g/L+agar 7.5 g/L.

• 夏蜡梅茎段愈伤组织的诱导是适培养基组为1/2MS+BA0.；5mg/L+2、4-D 0