National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Early blight of tomato is found to be one of the most devastating diseases of tomato, hence a roving survey was conducted in 3 districts of Chhattisgarh and maximum incidence was observed in Rampur village of Durg district and the disease incidence was least in khichri village of Raigarh. Further characterization of the causal agent, Alternaria solani revealed that PDA was the best media for the mycelial growth which was followed by OMA and HEA while the growth was best at pH 7.5 and minimal at 4.5 pH. Potassium nitrate and glucose were found to be the best nitrogen and carbon source for growth. 7 different colours were evaluated to find its effect on A. solani and it was found that blue light gave maximum mycelial growth while minimum growth was obtained in orange colour. The colony characteristics under various treatments also varied accordingly.
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