The exploitation of genetic resources of Brassica oleracea in breeding for resistance to clubroot (Plasmodiophora brassicae) |
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Authors: | P Crisp I R Crute R A Sutherland S M Angell K Bloor H Burgess P L Gordon |
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Institution: | (1) Institute of Horticultural Research, CV35 9EF Wellesbourne, Warwick, UK;(2) Present address: Floranova Ltd., Norwich Road, Foxley, NR20 4SS Dereham, Norfolk, UK;(3) Present address: Institute of Horticultural Research, East Malling, ME19 6BJ Maidstone, Kent, UK;(4) Present address: Department of Biological Sciences, University of East Anglia, NR4 7TJ Norwich, UK |
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Abstract: | Summary About 1000 Brassica oleracea accessions were evaluated in glasshouse tests for response to Plasmodiophora brassicae (clubroot). Resistance was confirmed in some north and west European kales and cabbage. A new source of resistance in cabbage, from Eire, is reported. Most other accessions were highly susceptible but lower levels of susceptibility were observed in open pollinated Brussels sprouts and forms of south European cabbage, cauliflower and broccoli. Modern breeding (as in the production of hybrid cultivars) appears to have resulted in increased susceptibility in several crop types. The implications of these results for the exploitation of germplasm are discussed. |
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Keywords: | Brassica oleracea Plasmodiophora brassicae |
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