EFFECT OF DIFFERENT MEDIA AND pH ON GROWTH AND SPORULATION OF DIFFERENT NATIVE TRICHODERMA SPP

The growth of microorganisms in a synthetic medium is influenced by a number of physical and chemical factors. The nutrient composition of a culture medium plays a most important role in microbial growth (Tortora and Funk, 1995). Fungi grow on diverse habitats in nature and are cosmopolitan in distribution requiring several specific elements for growth and reproduction (Singh and Sharma, 2014). In laboratory, a wide range of media are used for isolation of different groups of fungi that influence the vegetative growth and colony morphology, pigmentation and sporulation depending upon the composition of definite culture medium, temperature, light, water availability and adjacent atmospheric gas mixture (Kuhn and Ghannoum, 2003, Kumara and Rawal, 2008).An excellent mycelial growth and sporulation of A. alternate was obtained on PDA medium followed by Czapek’s medium (Rajashree R. Pawar et al., 2014).