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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.
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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.2017.6(6): 2038-2043
DOI: https://doi.org/10.20546/ijcmas.2017.606.240


An Investigation on the Etiology and Characterization of Fungal Diseases of Gerbera
N.M. Praveen1, Reshmy Vijayaraghavan1*, K. Ajith Kumar2 and Deepa James1
1Department of Plant Pathology, College of Horticulture, Kerala Agricultural University,Kerala, India
2Department of Pomology and Floriculture, College of Horticulture,Kerala Agricultural University, Kerala, India
*Corresponding author
Abstract:

A purposive sampling survey was conducted in three districts viz., Thrissur, Malappuram and Wayanad during July-August, November-December March-April seasons for monitoring disease occurrence and sample collection. Three leaf blights (LB-1, LB-2 and LB-3), two leaf spots (LS-1 and LS-2) and powdery mildew (PM) were the foliage diseases observed during the survey. Petal blight was the only flower disease noticed apart from root rot and wilt disease. Eight pathogens were isolated from diseased samples and pathogenicity test for each disease was carried out which aided in relating symptoms of the disease under artificial conditions with that of natural symptoms. Cultural and morphological characterisation of each pathogen was carried out for the identification of pathogens and the identity was confirmed by National Center for Fungal Taxonomy (NCFT), New Delhi. The pathogens causing LB-1, LB-2 and LB-3 were identified as Alternaria alternata, Alternaria tenuissima and Myrothecium roridum respectively. The pathogens responsible for leaf spots (LS-1 and LS-2) were identified as Ulocladium chartarum and Curvularia pallescens and for powdery mildew as Golovinomyces cichoracearum and Podosphaera sp. Curvularia lunata was identified as the causal organism of petal blight. Moreover, root rot and wilt disease observed during the survey were caused due to Phytophthora cryptogea and Fusarium solani respectively.


Keywords: Gerbera, Fungal diseases, Kerala.
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How to cite this article:

Praveen, N.M., Reshmy Vijayaraghavan, K. Ajith Kumar and Deepa James. 2017. An Investigation on the Etiology and Characterisation of Fungal Diseases of GerberaInt.J.Curr.Microbiol.App.Sci. 6(6): 2038-2043. doi: https://doi.org/10.20546/ijcmas.2017.606.240