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Authors
Affiliations
1 Department of Horticultural Plant Pathology, K.R.C.College of Horticulture, Arabhavi Karnataka, IN
2 Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad Karnataka, IN
3 Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad Karnataka
Source
International Journal of Plant Protection, Vol 6, No 1 (2013), Pagination: 103-107
Abstract
Twenty three isolates of Fusarium oxysporum f. sp. lycopercici were collected from major tomato growing areas of Karnataka. They produced three kinds of spores, viz., microconidia, macroconidia and chlamydospors. Mycelia of the pathogen were white cottony to pink often with purple tinge or reddish colouration of the medium. Total isolates were assigned into three groups, on the basis of colony diameter, colony characters, sporulation and degree of pathogenicity. Isolates Fol-1, Fol-4, Fol-6 Fol-9, Fol-11, F ol-13, Fol-15 and Fol-21 showed abundant aerial mycelium and sporulation with maximum colony diameter (75 to 90.0 mm). They showed strong virulence with 75 per cent severity and wilting symptoms were noticed 14 days after inoculation.
Keywords
Tomato, Fusarium Oxysporum F. Sp. Lycopercici, Cultural, Pathogenic Variability
