Summary
Twenty three accessions of nine Portuguese cabbage and kale land races from different geographic origins were tested at the seedling stage for resistance to several important brassica diseases. Resistance to downy mildew (Peronospora parasitica), expressed as necrosis of the cotyledon mesophyll, was found in all the accessions. Type A resistance to cabbage yellows (Fusarium oxysporum f. sp. conglutinans race 1) was present in most of the landraces. Resistance to clubroot (Plasmodiophora brassicae race 6) was found in one accession of the Portuguese tree kale. High resistance to blackleg (Leptosphaeria maculans) and white rust (Albuco candida) was not detected, although several accessions showed 20 to 30% of plants with intermediate expression of resistance. All Portuguese cole accessions were susceptible to blackrot (Xanthomonas campestris pv. campestris).
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References
Blank L.M., 1937. Fusarium resistance in Wisconsin all seasons cabbage. J. Agr. Res. 55(7): 497–510.
Cerca M.C., 1946. Subsídios para a caracterização e identificação de algumas formas cultivadas da espécie Brassica oleracea L. nacionais ou de há muito cultivadas em Portugal. Rel. Final C. Eng. Agrónomo, Lisboa, Inst. Sup. de Agronomia.
Gardé A. & N. Gardé, 1976. Culturas horticolas, 3a ed., Lisboa, Clássica Editora.
Greenhalgh J.R. & C.H. Dickinson, 1977. Studies of crucifer seedling resistance to Peronospora parasitica. Ann. Appl. Biol. 84: 278–281.
Miguel D.C., 1957. Varieties of ‘Tronchuda’ or veined cabbages. Proc. Int. Seed Test. Ass. 22(1): 1–14.
Nogueira A.P., 1986. Alguns aspectos da caracterização e da selecção da Couve Tronchuda (Brassica oleracea L. var tronchuda Bailey), Lisboa, Instituto Superior de Agronomia, 47 p.
Portas, C.A. & P.C. Costa, 1977. Produção, comercialização e consumo horticolas em Portugal Continental. Lisboa, Proc. I Colóquio Nac. de Hort. e Floricultura, p. 9–30.
Seaman W.L., J.C. Walker & R.H. Larson, 1963. A new race of Plasmodiophora brassicae affecting Badger Shipper cabbage. Phytopathology 53: 1426–1429.
Thurling N. & L.A. Venn, 1977. Variation in the response of rapeseed (Brassica napus and B. campestris) cultivars to blackleg (Leptosphaeria maculans) infection. Aust. J. Exp. Agr. Anim. Husb. 17: 445–451.
Walker J.C. & R. Smith, 1930. Effect of environmental factors upon the resistance of cabbage to yellows. J. Agr. Res. 41(1): 1–15.
Williams P.H. (Ed.), 1987. Resource book, Crucifer Genetic Cooperative. Dept. of Plant Pathology, Univ. of Wisconsin-Madison.
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Monteiro, A.A., Williams, P.H. The exploration of genetic resources of Portuguese cabbage and kale for resistance to several Brassica diseases. Euphytica 41, 215–225 (1989). https://doi.org/10.1007/BF00021588
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DOI: https://doi.org/10.1007/BF00021588