National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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