STUDIES ON LEAF SPOT OF ALOE (ALOE VERA) CAUSED BY FUSARIUM SOLANI (MART) SACC.
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 2
Abstract
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.
Authors and Affiliations
D. K. PANCHESHWAR
Keywords
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