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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 (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.2020.9(7): 418-428
DOI: https://doi.org/10.20546/ijcmas.2020.907.047


Mycoflora Associated with Stored Onion and their Cultural Characteristics
Lipilipsa Priyadarshinee1*, M. K. Mishra1, Debasish Pattnaik2, Tensirani Pradhan1, Sandhyarani Nanda1 and Swagatika Babu1
1Department of Plant Pathology,
2Department of Plant Physiology, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India
*Corresponding author
Abstract:

Onion being important vegetable crop grown in India is preferred mainly because of its green leaves, immature and mature bulbs which are either eaten raw or cooked as a vegetable. Post-harvest losses due to desiccation, decay and sprouting possess a great threat for effective economic use of onion. Infected large and small sized onions (495 numbers) were collected from different market places of Bhubaneswar, Odisha for association of fungal mycoflora. Out of these Aspergillus niger, Fusarium oxysporum and Botrytis sp were found to be associated with 214,169 and 112 number of rotted samples of both large and small sized onion samples respectively. Whitish black rotten areas with blackish powdery masses and water soaked patches on the skin were found on different size of onion. Whitish fungal growth of F.oxysporum was found in Potato dextrose agar (PDA) which turned pink colour after seven days of inoculation and its conidia measured to 18.39-25.63 × 3.58-4.93µm. Green white mycelium was developed on the petridish by Botrytis sp. and measured 7.77 ×4.58 µm. Mycelium of A.niger was submerged, hyaline, septate and complete black colouration on Potato Dextrose Agar (PDA). Vesicle measured 55-85 µm. Potato Dextrose Agar (PDA) medium supported highest growth of F.oxysporum (80.13mm) followed by Richard’s agar (76.63mm). Potato Rose Bengal Agar supported least growth 38.23mm. PDA also supported highest radial growth of A.niger (81mm). The growth of F.oxysporum increased from 15°C reaching maximum at 25°C (82.25mm) and declined thereafter with minimum in 35°C (64.75mm).


Keywords: Mycoflora,Stored onion,cultural characteristics
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How to cite this article:

Lipilipsa Priyadarshinee, M. K. Mishra, Debasish Pattnaik, Tensirani Pradhan, Sandhyarani Nanda and Swagatika Babu. 2020. Mycoflora Associated with Stored Onion and their Cultural Characteristics.Int.J.Curr.Microbiol.App.Sci. 9(7): 418-428. doi: https://doi.org/10.20546/ijcmas.2020.907.047