Fig. 4From: The regeneration of Acer rubrum L. “October Glory” through embryonic callusThe adventitious bud induction of embryonic callus a: On the basis of mature embryo callus, the adventitious bud germinated after being cultured 7-9d. b: After 2 subcultures, the elongation of adventitious bud was increased; c: Continue to culture 30d, new adventitious buds formed like ③; d: After a 40d subculture, bud ② unfolded to form branchesBack to article page