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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

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

Int.J.Curr.Microbiol.App.Sci.2020.9(7): 2208-2213
DOI: https://doi.org/10.20546/ijcmas.2020.907.258


Efficacy of Bio-agents and Media against the Early Blight of Potato
Priyanka Kumari Meena*, D. L. Yadav, C. B. Meena, B. K. Patidar and Pratap Singh
Department of Plant Pathology, COA, AU, Kota, Agriculture University, Kota, India
*Corresponding author
Abstract:

Early blight of potato caused by Alternaria alternata is one of the major diseases causing considerable yield loss. Efficacy of bio-agents was studied and revealed the all four Trichoderma species significantly reduced the mycelial growth of the pathogen over the control by dual culture method. Significantly maximum inhibition of mycelial growth was obtained with T. viride (57.08%) followed by T. azospirillum (50.00%), T. harzianum (43.26%) and T. virens (37.08%) of the pathogen after 48 hours of incubation. In present study, T. viride was observed more inhibitory against A. alternata. In vitro efficacy of leaf extract media from host as well as synthetic and semi synthetic media were used for the optimum mycelial growth and sporulation of the Alternaria alternata. Among the media tested, the potato leaf agar was significantly superior and most effective medium for growth as well as dry mycelial weight followed by PDA. However potato leaf agar medium was also superior for sporulation of A. alternata. Whereas, the potato stem agar, V-8 juice agar, pea agar, oat meal agar and czapek’s agar medium were least effective in mycelia growth.


Keywords: Early blight, Potato, Potato leaf agar, Trichoderma and Alternaria
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How to cite this article:

Priyanka Kumari Meena, D. L. Yadav, C. B. Meena, B. K. Patidar and Pratap Singh. 2020. Efficacy of Bio-agents and Media against the Early Blight of Potato.Int.J.Curr.Microbiol.App.Sci. 9(7): 2208-2213. doi: https://doi.org/10.20546/ijcmas.2020.907.258