Vol. 12, Issue 10 (2023)

Author(s):
Mayank Bishnoi, Sanjeev Kumar, Archana Kumawat, Shalu Chandel, Swarna Kurmi and Surendra Bajiya

Abstract:
Rhizoctonia solani Kuhn, is one of the most important pathogens of mungbean, causing aerial blight, which accounts for heavy losses in mungbean growing areas of MP. Three most common factors associated with the growth and sclerotia formation of pathogen is media, pH and temperature which has been studied in the present study. All three factors significantly affect the growth of the fungal mycelia and sclerotial production. In this investigation, The growth of R. solani was investigated using a total of seven solid mediums from which PDA media produced maximum mycelium growth (90.00 mm) and from seven different liquid media Potato dextrose broth (776.33 mg) produced the highest dry mycelial weight. The mycelium growth was tested at different temperatures viz., 10, 15, 20, 25, 30, 35 and 40℃ in in vitro conditions, among which maximum mycelium growth was observed at 30℃ (88.33 mm) and among different pH viz., 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, and 8.0 the highest mycelium growth was recorded at pH 7.0 (89.10 mm).