Effectiveness of isolates of Trichoderma viride containing carbon and nitrogen sources against major fungal pathogens of chickpea

Isolate of Trichoderma viride supplemented with various carbon and nitrogen sources was evaluated for their potential in inhibiting major fungal pathogens using chickpea as test crop. Peptone, mannitol and glucose were used as carbon sources; ammonium sulphate, urea and potassium nitrate were taken as nitrogen sources. Among the carbon source, isolate obtained from treatment with peptone recorded the least disease incidence as compared to control whereas, isolate of T. viride containing Ammonium sulphate as nitrogen source obtained the lowest disease incidence for all the three pathogens. Combined application of both carbon and nitrogen with Trichoderma isolate also enhance the potential in reducing disease severity. The severity of wilt, collar rot and root rot was controlled by 67.2%, 59.0% and 55.9%, respectively as compared to control.