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Susceptibility of various potato cultivars to Clavibacter michiganensis subsp. sepedonicus infection was estimated in field experiments in Bydgoszcz in 2008–2009. Ten tubers of each of several potato cultivars were inoculated with suspension of Cms BPR IOR 527 at concentration about 108 cfu/ml. Differences among the cultivars in the incidence of foliar and tuber ring rot symptoms and of latent infection...
Dwukrotnie, w roku 2003 i 2007, z pomidora szklarniowego z objawami nekrozy liści wyizolowano wirusa sferycznego. Występowniu wirusa każdorazowo towarzyszyła obecność mączlika szklarniowego (Trialeurodes vaporariorum). Eksperymentalnie po raz pierwszy wykazano, że mączlik szklarniowy jest wektorem wirusa sferycznego. Mączlik szklarniowy przenosił wirusa bardzo efektywnie (100%). Wirus porażał zakres...
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