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Assessing potato cultivars for resistance to tuber soft rot (Erwinia carotovora subsp.atroseptica) at four test centres in the UK

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Summary

Tuber slices of 15 cultivars were inoculated withErwinia carotovora subsp.atroseptica on two occasions at four test centres and the results compared. Correlations in mean lesion diameter between inoculum concentrations, between the same test on different occasions, between centres and between cultivars in different tests were mostly significant in spite of small differences in procedure at each centre. Satisfactory agreement was reached between centres, particularly concerning the most resistant (Cara, Pentland Hawk) and most susceptible (Record, Wilja, Pentland Crown, King Edward) of the cultivars tested. The implications of the findings are discussed in relation to results published elsewhere and to other methods of inoculation.

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References

  • Lapwood, D. H., P. J. Read & J. Spokes, 1984. Methods for assessing the susceptibility of potato tubers of different cultivars to rotting byErwinia carotovora subspeciesatroseptica andcarotovora.Plant Pathology 33: 13–20.

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  • Lapwood, D. H. & P. J. Read, 1985. A simplified slice method for assessing tuber susceptibility of potato cultivars toErwinia carotovora subsp.atroseptica.Plant Pathology 34: 284–286.

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  • McGuire, R. G. & A. Kelman, 1984. Reduced severity of Erwinia soft rot in potato tubers with increased calcium content.Phytopathology 74: 1250–1256.

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Author notes

  1. D. H. Lapwood

    Present address: , 52 Lea Road, AL5 4PG, Harpenden, Hertfordshire, UK

  2. C. Logan

    Present address: Ulster Chemicals Limited, 23 Seagoe Industrial Estate, BT63 5QB, Portadown, Co. Armagh, Northern Ireland

Authors and Affiliations

  1. Scottish Crop Research Institute, Pentlandfield, EH25 9RF, Roslin, Midlothian, Scotland

    R. L. Wastie

  2. Plant Breeding Institute, Maris Lane, Trumpington, CB2 2LQ, Cambridge, England

    G. J. Jellis

  3. Rothamsted Experimental Station, AL5 2JQ, Harpenden, Hertfordshire, England

    D. H. Lapwood

  4. Plant Pathology Research Division, Department of Agriculture for Northern Ireland, New-forge Lane, BT9 5PX, Belfast, Northern Ireland

    C. Logan & G. Little

  5. Scottish Crop Research Institute, Mylnefield, Invergowrie, Dundee DD2 5DA, Scotland

    M. S. Phillips

Authors
  1. R. L. Wastie
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  2. G. J. Jellis
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  3. D. H. Lapwood
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  4. C. Logan
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  5. G. Little
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  6. M. S. Phillips
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Wastie, R.L., Jellis, G.J., Lapwood, D.H. et al. Assessing potato cultivars for resistance to tuber soft rot (Erwinia carotovora subsp.atroseptica) at four test centres in the UK. Potato Res 31, 67–72 (1988). https://doi.org/10.1007/BF02360022

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  • DOI: https://doi.org/10.1007/BF02360022

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