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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 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
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.2017.6(10): 5023-5034
DOI: https://doi.org/10.20546/ijcmas.2017.610.476


Cultural and Physiological Characterization of Phytophthora parasitica causing Foot Rot of Betelvine (Piper betle L.)
Y.P. Prasad*, M.P. Basavarajappa, Y.S. Mahesh, R.K. Mesta, D.L. Rudresh and Shankaragouda Patil
Harosagara Marabanahalli Post Channagiri tq Davanagere Dist. 577551, Karnataka, India
*Corresponding author
Abstract:

Betelvine (Piper betel L.) is an important horticulture crop of commercial values and belongs to family Piperaceae. Betelvine is mainly grown under moist and humid shade conditions, which makes the crop more prone to many diseases. Among them foot rot caused by Phytophthora parasitica is a major one and leads to total crop loss. The mycelia of the fungus grew satisfactorily on the entire agar media used. Maximum radial growth of the pathogen was recorded on czapeck-dox agar after eight days of incubation. The optimum temperature for the mycelial growth of the fungus was observed at 20 oC followed by 25 oC and the least growth at 40 oC. The maximum mycelial dry weight of the pathogen was recorded at a pH 8 followed by pH 7. The result with respect to effect of relative humidity showed that maximum mycelial dry weight of P. parasitica at 90% followed by 85% and the least was noticed at 60%. Amongst the carbon sources supplemented, L-asparagine, was best utilized with the highest mycelia dry weight and the least was recorded in calcium carbonate. Whereas with respect to nitrogen sources the maximum mycelial dry weight was recorded in potassium nitrate and the least in ammonium phosphate.


Keywords: Culture media, Mycelial, Phytophthora parasitica
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How to cite this article:

Prasad, Y.P., M.P. Basavarajappa, Y.S. Mahesh, R.K. Mesta, D.L. Rudresh and Shankaragouda Patil. 2017. Cultural and Physiological Characterization of Phytophthora parasitica Associated with Foot Rot of Betelvine (Piper betle L.).Int.J.Curr.Microbiol.App.Sci. 6(10): 5023-5034. doi: https://doi.org/10.20546/ijcmas.2017.610.476