Abstract:By means of tissue culture it has been discovered that the injection made from the root of Astragalus membranaceus (Fisch) Bge promotes significantly the glycosaminoglycan (GAG) synthesis of embryo chicken femora. The contents of uronic acid, total hexosamine and galactosamine of the drug groups are found to be 110-113 per cent of those of the control. No difference bus been found in components of GAG. between the treated and the control.