Evaluation of Different Concentration of Jaggery (as Cheaper Carbon Source) for Growth and Sporulation of Trichoderma harzianum (Th14)

Among the tested different concentration (2, 4, 6, and 8%) of jaggery for the growth and sporulation of T. harzianum (Th14) maximum biomass(mg/100ml) and sporulation (spores/ml) was observed at 8 per cent jaggery (555mg; 5.00x10⁸) and was at par with 6 per cent jaggery (512mg; 4.33x10⁸). However, maximum biomass was observed in PDB (789mg; 5.42x10⁸) and was at par with jaggery 8 per cent in sporulation. Minimum biomass and sporulation was observed with potato broth (229; 2.75x10⁶) i.e. without any carbon source. Present investigation revealed that jaggery could be exploited as a cheaper substrate for the mass production of Trichoderma for the management of plant diseases under sustainable agriculture.