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 |
Bio efficacy of six aqueous plant extracts of locally available botonicals at four different concentrations, a check fungicide(Mancozeb) and four biocontrol agents on growth and sporulation of Alternaria solani (Ellis and Mart.) Jones and Groutwere evaluated.Allium sativum at 1% concentration showed 86.2% inhibition, 94.4% inhibition at 2% concentration, and 100% inhibition was achieved at 3% and 4% concentrations. Mancozeb at 0.05, 0.1 and 0.2% concentrations showed 100% inhibition. Remaining plant extracts showed less than 35% inhibition on growth of the fungus on all four concentrations. All the plant extracts evaluated could inhibit sporulation of fungus completely (100%) in all the four concentrations. The effect of biocontrols agents on the growth and sporulation of the fungus showed that A. solani (Ellis and Mart.) Jones and Grout was completely overgrown (100%, class I) by the antagonists Trichoderma harzianum and T.hamatum while T. viride colonized half of the growth of the fungus (50% overgrowth, Class III). Antagonists Penicillium citrinum and P. glabrum could not overgrow the fungus but formed 0.5 cm and 0.4 cm inhibition zone (Class VI).
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