Vol. 11, Issue 9 (2022)

Author(s):
Ishwari G Hiremath, Shamarao Jahagirdar, SA Ashtaputre, PU Krishnaraj and DN Kambrekar

Abstract:
Sixteen different pathogenic isolates of Sclerotium rolfsii collected from five different major soybean growing regions of the country were subjected for variability studies. The cultural and morphological variation was observed among the sixteen isolates of the pathogen. The results revealed that all the isolates showed variation with respect to time taken for complete growth i.e., some isolates were fast growing and some were slow growing, colour, texture and margin of the colony. Morphological variations with respect to sclerotial characters also varied among the isolates viz., time take for sclerotial production, size, shape, colour, number and test weight of sclerotial bodies and among the ten solid media tested, potato dextrose agar was the best media for good growth ad sclerotial production.