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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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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

Int.J.Curr.Microbiol.App.Sci.2018.7(4): 961-968
DOI: https://doi.org/10.20546/ijcmas.2018.704.102


Variability in Alternaria alternata Causing Potato Brown Spot under Different Hydrogen Ion Concentration
Shrishti Lingwal* and Asha Sinha
Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh-221005, India
*Corresponding author
Abstract:

A total of thirty isolates of A. alternata were collected from eastern Uttar Pradesh and parts of Bihar, India. All thirty isolates were evaluated for their growth and rate of growth at three different H+ ion concentrations (pH) viz. four, six and eight in PDA medium. Radial growth for all of the isolates of A. alternata was also found significantly maximum at pH 6 followed by pH 8 and pH 4. Also, it was noted that none of the isolate had statistically similar growth in different pH range. At pH 4, range of radial growth for thirty isolates ranged between 28.50 to 38.00mm, at pH 6, 90.00mm to 66.00mm whereas for pH 8 growth of A. alternata isolates ranged between 49.50 and 58.00mm. Likewise, rate of growth for all of the isolates of A. alternata was also found significantly maximum at pH 6 followed by pH 8 and pH 4. None but one of the isolate had statistically similar rate of growth in different pH range i.e. Mohobbatpur had 4.67mm and 4.58mm rate of growth at pH 8 and 4 respectively which were found statistically at par each other.


Keywords: Alternaria alternata, Brown spot, pH, Potato, Uttar Pradesh
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How to cite this article:

Shrishti Lingwal and Asha Sinha. 2018. Variability in Alternaria alternata Causing Potato Brown Spot under Different Hydrogen Ion Concentration.Int.J.Curr.Microbiol.App.Sci. 7(4): 961-968. doi: https://doi.org/10.20546/ijcmas.2018.704.102