Yeast extract 1 g Peptone 1 g KH2PO4 0.3 g Na2HPO4.12H2O 0.7 g NH4H2PO4 0.3 g (NH4)2HPO4 0.7 g (NH4)2SO4 0.1 g CaCl2.6H2O 0.05 g MgSO4.7H2O 0.25 g Chloridazon (herbicide) 2 g H3BO3 0.5 mg CuSO4.5H2O 0.04 mg KJ 0.1 mg FeCl3.6H2O 0.2 mg MnSO4.4H2O 0.4 mg ZnSO4.7H2O 0.4 mg (NH4)6Mo7O24.4H2O 0.2 mg Biotin 0.1 mg Vitamin B12 0.03 mg Agar 20 g Distilled water 1000 ml pH 6.8 - 7.0