International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 6, Issue:11, November, 2017

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 652-661

In Vitro Evaluation of Alternaria solani (Ellis and Mart.) Jones and Grout Causing Fruit Rot of Tomato by Plant Extracts and Bio-Control Agents
N. Olivia Devi1*, N. Iboton Singh2, R.K. Tombisana Devi2 and W. Tampakleima Chanu2
1School of Crop Protection, Department of Plant Pathology, College of Post Graduate Studies, Central Agricultural University, Umiam -793103, Meghalaya, India
2Department of Plant Pathology, College of Agriculture, Central Agricultural University, Imphal-795004, Manipur, India
*Corresponding author

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).

Keywords: Alternaria solani, Aqueous plant extracts, Bio-control agents, Fruit rot.

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How to cite this article:

Olivia Devi, N., N. Iboton Singh, R.K. Tombisana Devi and Tampakleima Chanu, W. 2017. In Vitro Evaluation of Alternaria solani (Ellis and Mart.) Jones and Grout Causing Fruit Rot of Tomato by Plant Extracts and Bio-Control Agents.Int.J.Curr.Microbiol.App.Sci. 6(11): 652-661. doi:
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