STUDIES ON LEAF SPOT OF ALOE (ALOE VERA) CAUSED BY FUSARIUM SOLANI (MART) SACC.

GOPAL LAL BAIRWA¹, N. SAXENA², D.K. PANCHESHWAR³*, U.K. KHARE^4
1Department of Plant Pathology, College of Agriculture, JNKVV Jabalpur, M.P.
²Department of Plant Pathology, College of Agriculture, JNKVV, Jabalpur, M.P.
³Department of Plant Pathology, College of Agriculture, JNKVV, Jabalpur, M.P.
⁴Department of Plant Pathology, College of Agriculture, JNKVV, Jabalpur, M.P.
* Corresponding Author : dinesh11pancheshwar@gmail.com

Received : 10-01-2016     Accepted : 17-01-2016     Published : 30-01-2016
Volume : 8     Issue : 2       Pages : 960 - 963
Int J Agr Sci 8.2 (2016):960-963

Keywords : Leaf spot, Pathogenicity, in vitro, Inoculation
Academic Editor : Anil Kurmi, Arpit Suryawanshi
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

The present investigation entitled “Studies on leaf spot of Aloe (Aloe vera) caused by Fusarium solani (Mart) sacc” was done for accessing symptoms of the pathogen including its isolation, purification and pathogenicity test. It also included the study of various factors favoring disease, Biochemical changes in aloe leaf, as influenced by fungal infection. In vitro evaluation of chemicals, botanicals and bio agents against F. solani was also done. Fusarium solani was observed to be associated with the symptoms on the leaves of Aloe vera and the leaf inoculation method was observed to be the best for the confirming the pathogenicity of causal agent. It was found that the fungus grew profusely at 300C and pH 8.0. Potato dextrose agar medium was observed to be the best for fugal growth. Carbendazim at 250,500 and 1000 ppm concentrations inhibited the fungal mycelium when amended with PDA. Garlic bulb extract was observed to most effective out of six botanicals tested. Similarly, T. harzianum inhibited the fungal growth to its maximum. Decreased concentrations of N, P, K, Cd, Ni, Zn, protein and aloin was observed due to infection where as concentration of Fe and Mn was increased. The concentration of Pb remained unchanged.