International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:7, July, 2018

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.2018.7(7): 61-66

Antifungal Effect of Chitosans and Chito-oligosaccharides against Early Blight of Tomato
A.Ramakrishna1, S. Desai2, G. Uma Devi1 and T. Uma Maheswari3a
1Department of Plant Pathology, PJTSAU, Rajendranagar, Hyderabad – 500030, India
2Division of Crop Science, ICAR-CRIDA,Santhoshnagar, Hyderabad-500059, India
3Department of Entomology, PJTSAU, Rajendranagar, Hyderabad – 500030, India
*Corresponding author

The present investigation was to determine the antifungal ativity of different chitosans and chito-oligosaccharides against Alternaria solani. Out of four chitosans tested, chitosan DA10 and 134 was recorded as 53.44 and 51.47% at 1000ppm, respectively where as at 1500 ppm conc, the inhibition percent was 67.54 and 59.01%, respectively. Among the treatments, chitosans exhibited maximum growth inhibition of pathogen at 1500ppmconcentration.Chito-oligosaccharides obtained by enzymatic degradation of the chitosans using promising biocontrol agents have exhibited a positive effect on the growth of the test pathogen showing that they were not effective in reducing the disease.

Keywords: Antifungal effect, Chitosans, Chito-oligosaccharides Tomato

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How to cite this article:

Ramakrishna, A., S. Desai, G. Uma Devi and Uma Maheswari, T. 2018. Antifungal Effect of Chitosans and Chito-oligosaccharides against Early Blight of Tomato.Int.J.Curr.Microbiol.App.Sci. 7(7): 61-66. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.