Vol. 11, Issue 4 (2022)

Author(s):
Babli, SP Tiwari and Rani Chodari

Abstract:
Rhizoctonia solani is a multiparous widely distributed plant pathogen. Web blight caused by Rhizoctonia solani causes huge yield loses in urdbean (Vigna mungo). All the commercially grown varieties are susceptible. Being a typical soil borne fungus,. It was carried out to know the efficacy of different among the four tested media for colony growth of R. solani from urd bean, Richard’s Agar medium was found most suitable and supported the growth of R. solani. However, Czapek’s Dox Agar medium least supported the growth of R. solani. Further, it was observed that R. solani showed maximum radial growth at 25 ⁰C. The maximum radial growth of R. solani was recorded a pH 7.0 after different incubation period. Further, it was observed that neutral pH 7.0 and slightly alkaline pH favours the colony growth of R. solani in comparision to acidic pH. However, neutral pH 7.0 found most suitable for growth of R. solani.