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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 (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.2019.8(12): 621-627
DOI: https://doi.org/10.20546/ijcmas.2019.812.081


Pathogenicity Diversity in Albugo candida Isolates causing White Rust Disease in Rapeseed-Mustard
Devanshu Dev*, G. R. Daniel, Pooja Upadhyay and A. K. Tewari
Department of Plant Pathology, College of Agriculture, G B Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, India
*Corresponding author
Abstract:

Albugo candida causing white rust of rapeseed-mustard is a highly variable fungus and cause great economic losses. In this study 44 A. candida isolates belongs to 17 different states of India has been used for the pathogenicity diversity. Symptomatology of the pathogen i.e. pustule pattern, pustule size and pustule colour has taken as criteria for the pathogenicity diversity. All the 44 A. candida isolates were inoculated on susceptible Brassica juncea cultivar Varuna for the study. In the study of white rust symptoms of 44 A. candida on Varuna cultivar five different types of pustule pattern has been observed viz. viz. Separate circular; Coalesced circular, Scattered and pin head; Restricted near veins and veinlets and Restricted near veins and veinlets separate or coalesced circular type pustules. Pustules size among 44 A. candida isolates was varied from 0.5-2.5mm while pustule colour of all the isolates was creamy white. The study very less pathogenicity diversity in pustule size and colour has been observed among 44 A. candida isolates, while in pustule pattern some diversity was observed.


Keywords: Coalesced, Pathogenicity diversity, Oilseed crop, Biotic stress, White rust
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How to cite this article:

Devanshu Dev, G. R. Daniel, Pooja Upadhyay and Tewari, A. K. 2019. Pathogenicity Diversity in Albugo candida Isolates causing White Rust Disease in Rapeseed-Mustard.Int.J.Curr.Microbiol.App.Sci. 8(12): 621-627. doi: https://doi.org/10.20546/ijcmas.2019.812.081