Population Structure of Phomopsis vexans and its Virulence Status Associated with Brinjal Fruit Rot Disease in Kashmir

Author: Ali Anwar, Mudasir Bhat, M.N. Mughal, Efath Shahnaz* and G.M. Jeelani

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Abstract

Phomopsis fruit-rot of brinjal is one of the most important diseases that deteriorate quality and market value of fruits. A number of studies have been conducted regarding the aetiology, epidemiology and management of the fungus but studies regarding variability are few and far between. The present study was an effort to bridge this important gap in the pathogenic nature of the causal organism, Phomopsis vexans. The pathogenicity of the isolated fungus was established by proving Koch’s postulates. The inoculated seedlings produced symptoms of the disease after 7 days of inoculation. The culture of the pathogen produced characteristic disease symptoms after 10 days of inoculation on injured fruits and after 18 days of inoculation on uninjured fruits. Isolates of P. vexans were collected from different locations of three districts viz. Budgam, Ganderbal and Srinagar. Significant variation was revealed in pathogen population on their cultural, morphological and pathogenic behaviour. Cul

Keywords

Brinjal, fruit-rot, Phomopsis vexans, pathogenicity, variation, isolates.