Fig. 1

Response surface plots of Metarhizium robertsii ARSEF 2575 produced in parboiled rice supplemented with riboflavin and sodium nitrate. A Response surface plot of Metarhizium robertsii ARSEF 2575 for proteolytic activity. B Response surface plot for conidial production of Metarhizium robertsii ARSEF 2575. The unit measurement used was gram by weight (g/wt)