Prevalence of bacterial spot in tomato fields of Karnataka and effect of biological seed treatment on disease incidence

Kavitha, R. and Umesha, S. (2007) Prevalence of bacterial spot in tomato fields of Karnataka and effect of biological seed treatment on disease incidence. Crop Protection, 26 (7). 991 - 997. ISSN 0261-2194

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Abstract

Bacterial spot disease of tomato caused by Xanthomonas vesicatoria was studied during the field survey in the Karnataka state, India. The disease incidence ranged from 22 to 50. The pathogen was isolated from the infected plant material and seed samples. In the laboratory the pathogen was isolated following the routine laboratory assay method i.e. direct plating method using Tween B medium. Further the pathogen was confirmed by biochemical, physiological, hypersensitivity in tobacco (Nicotiana tabaccum) plants and finally the pathogenicity tests. Biological seed treatment with antagonistic Pseudomonas fluorescens improved the seed quality (p=0.05) under laboratory conditions and tremendously decreased the bacterial spot disease incidence in field.

Item Type:	Article
Uncontrolled Keywords:	Bacterial spot, Tomato, , , Seed treatment
Subjects:	B Life Science > Biotechnology
Divisions:	Department of > Biotechnology
Depositing User:	C Swapna Library Assistant
Date Deposited:	13 Sep 2019 10:15
Last Modified:	13 Sep 2019 10:15
URI:	http://eprints.uni-mysore.ac.in/id/eprint/8127

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