1. 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...