Occurrence of bacterial canker in tomato fields of Karnataka and effect of biological seed treatment on disease incidence

Umesha, S. (2006) Occurrence of bacterial canker in tomato fields of Karnataka and effect of biological seed treatment on disease incidence. Crop Protection, 25 (4). 375 - 381. ISSN 0261-2194

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Abstract

Bacterial canker caused by Clavibacter michiganensis ssp. michiganensis was detected during a survey of tomato fields in the state of Karnataka, India. The disease incidence ranged from 25 to 48. The pathogen was isolated from infected plant material and seeds. The pathogen was also detected in tomato seeds by laboratory assay and its identity was confirmed by biochemical, physiological, hypersensitivity in four-o’clock plant (Mirabilis jalapa) and pathogenicity tests. A seed transmission rate of up to 46 was observed in naturally infested seed. Biological seed treatment with antagonistic Pseudomonas fluorescens improved seed quality (p=0.05) under laboratory conditions and drastically reduced the bacterial canker incidence in field.

Item Type:	Article
Uncontrolled Keywords:	ssp. , Bacterial canker, Seed transmission, Tomato, , Seed quality
Subjects:	B Life Science > Biotechnology
Divisions:	Department of > Biotechnology
Depositing User:	LA manjunath user
Date Deposited:	26 Aug 2019 05:44
Last Modified:	26 Aug 2019 05:44
URI:	http://eprints.uni-mysore.ac.in/id/eprint/7004

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