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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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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): 529-536
DOI: https://doi.org/10.20546/ijcmas.2020.907.058


Survey on Onion Basal Rot Disease Incidence and Evaluation of Aggregatum Onion (Allium cepa L. Var. Aggregatum Don.) Genotypes Against Fusarium oxysporum f. sp. cepae
J. Shamyuktha1*, J. Sheela1, N. Rajinimala1, B. Jeberlinprabinaand C. Ravindran3
1Department of Plant Pathology
2Department of Soil Science and Agricultural Chemistry
3Department of Horticulture, Agricultural College and Research Institute,
Killikulam, Vallanadu- 628 252, Tamil Nadu, India
*Corresponding author
Abstract:

Basal rot is a major fungal disease that occurs in onion crop caused by Fusarium oxysporum f. sp. cepae (Hanazawa) Snyder &Hansen. Severe yield losses occur in the onion crop due to the rotting of bulbs. Survey was conducted in onion growing areas of Tirunelveli, Thoothukudi and Tenkasi districts and five isolates of Fusarium were isolated under in vitro. The isolates were confirmed by both morphological and cultural characters. Among the five isolates, FBR1 isolate from Vallanadu village was identified as a virulent isolate from the pathogenicity experiments and it covers the Petri Plate within seven days. The least growth was observed in the FBR5 isolate collected from Muthukrishnaperi village. Use of disease resistant sources is one of the non-chemical method to be suggested as an alternative approach to chemical methods. Among the eight genotypes screened against Fusarium oxysporum f. sp. cepae, Settikulam local (Perambalur) was found to record lower disease incidence (33.30 %) as compared to the check variety CO (On) 5 (11.11 %).


Keywords: Allium cepa, basal rot, FBR, genotypes
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How to cite this article:

Shamyuktha. J., J. Sheela, N. Rajinimala, B. Jeberlinprabina and Ravindran. C. 2020. Survey on Onion Basal Rot Disease Incidence and Evaluation of Aggregatum Onion (Allium cepa L. Var. Aggregatum Don.) Genotypes Against Fusarium oxysporum f. sp. cepae.Int.J.Curr.Microbiol.App.Sci. 9(7): 529-536. doi: https://doi.org/10.20546/ijcmas.2020.907.058