» Spore count: Minimum 1 ×106 spores/gram
» Minimum 1 ×107 viable fungal spores/ml of the iquid
» Contamination: Nil for liquid inoculums
» 1×103 cells per gram for carrier based preparation » pH : Liquid: 3.5 to 5.5
Carrier: 6.0 to 7.7
» Strains should be capable of solubizing at east 30 mg/litre of Phosphorus n liquid broth