A comparison of methods to evaluate the susceptibility of potato cultivars to blackleg (caused by Erwinia carotovora subsp. atroseptica) in the field at different sites |
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| Authors: | P T GANS G J JELLIS G LITTLE C LOGAN R L WASTIE |
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| Institution: | National Institute of Agricultural Botany, Huntingdon Road, Cambridge CB3 OLE, UK;Plant Breeding International Cambridge, Maris Lane, Trumpinglon, Cambridge CB2 2LQ, UK;Department of Agriculture for Northern Ireland, Plant Pathology Research Division, Newforge Lane, Belfast BT9 5PX Northern Ireland;Scottish Crop Research Institute, Mylnefield. Invergowrie, Dundee DD2 5DA, UK |
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| Abstract: | Potato seed tubers were inoculated either using a needle or using a high-pressure jet injector at a number of sites in the United Kingdom. Over 2 years, different cultivars showed different trends in blackleg symptoms. Comparisons with inoculation by infiltration of tubers under vacuum were made at two sites, and by damaging followed by dipping tubers in inoculum at one site. The relationship between plant vigour in July and yield was closer than that between blackleg symptoms and yield. |
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