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  1. Ann. Tabac, 1995, sect. 2-27, p. 1-5., ISSN.0399-0354

    Breeding for PVY resistance in Solanum tuberosum

    ROUSSELLE P.; CHAUVIN L.; ROUSSELLE-BOURGEOIS F.
    INRA, Station d'Amélioration de la Pomme de Terre et des Plantes à Bulbes, Ploudaniel, France
    Since 1970, INRA has been working for breeding resistance against virus Y (PVY). The introduction into the breeding programme of genes conferring hypersensitivity or immunity originating in German clones was effective and produced clones with a good...
  2. Ann. Tabac, 1995, sect. 2-27, p. 25-34., ISSN.0399-0345

    Variability of PVY virus and similar potyviruses. Diversity of the source of resistance in pepper (Capsicum sp. )

    MARCHOUX G.; PALLOIX A.; GEBRE SELASSIE K.
    INRA, Station de Pathologie Végétale, Montfavet, France
    The group of potyviruses is one of the most damaging diseases of Solanaceous crops. They are spread by aphids in a non persistant fashion and in the presence of a factor which assists transmission of the vital code and are particularly redoubted and...
  3. Ann. Tabac, 1995, sect. 2-27, p. 43-50., ISSN.0399-0345

    Study of the virulence of PVY isolates on tobacco: proposal for a classification integrating the resistance to necrosis

    BLANCARD D.; ANO G.; CAILLETEAU B.
    INRA - Institut du Tabac, Bergerac, France
    Having collected 40 or so isolates of PVY found in tobacco in France their virulence has been evaluated in 6 genotypes of tobacco. In function of their comportment and especially their capacity to induce necrotic symptoms we have been able to...
  4. Ann. Tabac, 1995, sect. 2-27, p. 7-16., ISSN.0399-0345

    Taxonomic relationships between the distinct populations of potato virus Y based on the biological, serological and genomic properties. Definition of pathotypes on potato

    LE ROMANCER M.
    INRA, Station de Pathologie Végétale, Rennes-le-Rheu, France.
    Three independent taxonomic keys connected with the host specificity are currently used to describe the biological variability within the potato virus Y (PVY) species that infects tobacco, tomato, pepper and potato. Differences in the taxonomic...