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  1. Bull. Spec. CORESTA Congress, Vienna, 1984, p. 108, P01, ISSN.0525-6240

    State of work concerning the breeding of a Tobacco. resistant to tomato spotted wilt virus in P`oland

    GAJOS Z.
    Central Laboratory of the Tobacco Industry, Krakow, Poland
    Work has been done in Poland on the cultivation of varieties resistant to Lycopersicum Virus 3 since the Sixties. In the first stage of the work we looked at wild species to find sources of genetic resistance. The species Nicotiana alata proved resistant. ...
  2. Bull. Spec. CORESTA Congress, Manila, 1980, p. 88, P07, ISSN.0525-6240

    The virulence of Lycopersicum virus 3 isolates from various regions of disease incidence in Poland

    SAMEK D.; ROMAN T.
    Central Laboratory of the Tobacco Industry, Krakow, Poland
    Symptoms of Lycopersicum virus 3 (TSWV) disease in tobacco plantations suggest that several races of various virulence occur. Studies on the determination of the virulence of virus isolates from 4 regions of incidence have been done for two years. One ...