Vol. 12, Issue 5 (2023)

Author(s):
Smita Prajapati, Reeti Singh, Pramod Kumar Fatehpuria and Devendra K Payasi

Abstract:
Sclerotium rolfsii Sacc. is a serious ubiquitous soil borne phytopathogenic fungus, causing Southern blight The fungus is notorious for its ability to induce dark stem rot, during any plant growth stages, followed by drooping and wilting of leaves and gradually wilting of the whole plant. Potato dextrose agar (85.17 mm), followed by Richard’s agar (75.50 mm), Beet root dextrose Agar (68.50 mm), Carrot dextrose agar (58.67 mm), Lentil leaf dextrose Agar (54.83 mm), Cornmeal agar (53.00 mm), Czapek’sDox agar (49.00 mm), while minimum growth was recorded in Malt extract Agar (48.33 mm). In respect of sclerotial formation in S. rolfsii, the maximum number of sclerotia were formed in Richard’s agar (131.00 /plate) followed by Potato dextrose agar (126.67 /plate), Czapek’sDox agar (118.67/ plate), Malt extract Agar (111.33 /plate), Carrot dextrose agar (103.33 /plate), Beetroot dextrose agar (102.00/plate), and Lentil leaf dextrose Agar (98.67/plate), while the minimum number of sclerotial was found in Cornmeal agar (92.67/plate).