Cultural and Physiological Characterization of Beauveria Bassiana

Effect of different media, temperature, humidity and pH were assessed on the basis of radial growth of Beauveria bassiana (NGP-Bb4). SD AY medium (44.00 mm) supported highest mycelia growth of isolate followed by SD A (43.33 mm). The abundant sporulation and maximum radial growth 42.00 mm was recorded at temperature 25°C. The moderate sporulation and least radial growth 28.00 mm was at temperature 35°C. At 95% relative humidity, highest radial growth of 41.66 mm was recorded till 10^th day of incubation with abundant sporulation. Data in respect of pH effect revealed that the highest radial growth of 42.67 mm was achieved after 10^th days at pH of 6.0 with abundant sporulation. It can be concluded that, SD A medium and temperature 25°C, pH 6.0 and humidity 95 per cent were considered as optimum for growth and sporulation of B. bassiana.