Effect of media, pH, nitrogen, carbon sources and light on the growth and sporulation of Pyricularia grisea

Out of seven different media studied, Pyricularia grisea grew well on P.D.A. and carrot agar media. It required optimum temperature of 25±2°C and pH 7 for the growth and sporulation. Barium nitrate amended medium enhanced the mycelial growth (59.90 mm) while lead nitrate drastically inhibited the growth. Among the carbon sources, maltose supported the best growth (31.6 mm) followed by glucose (24.30 mm) over untreated check (21.70 mm).