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  1. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 124, P4

    Diversity of Ralstonia solanacearum in the Southeastern United States

    ROBERTSON A.E.; FORTNUM B.A.; KLUEPFEL D.A.; WOOD T.C.
    Clemson University, Dept. of Plant Pathology and Physiology, Pee Dee REC, Florence, SC, USA.
    Bacterial (Granville) wilt, caused by Ralstonia solanacearum , is a major disease of tobacco in both North and South Carolina. In contrast, Granville wilt rarely occurs on tobacco in Georgia, Florida and Virginia. This difference was noted over...
  2. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 126, P6

    Study on the predictive models of tobacco virus disease transmitted by aphids

    WANG Fenglong; QIAN Yumei; SHI Jiao; WANG Jinbo; CHEN Dexin; ZHAO Liming; MU Jianmin
    Qingzhou Tobacco Research Institute of CNTC, Qingzhou, Shandong, China
    In China, CMV, PVY and TEV transmitted by aphids have seriously impaired tobacco production in most tobacco-growing areas. In this paper, several predictive models, concerning aphid-transmitted tobacco virus disease, were formulated. Based on the...
  3. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 127, P7

    Characterization of PVY strains occurring in Poland and Hungary, and comparisons with foreign strains

    DOROSZEWSKA T.; FISHER C.R.
    Institute of Soil Science and Plant Cultivation, Dept. of Special Crops, Pulawy, Poland.
    The necrotic strain of Potato virus Y (PVY), causing brown venial necrosis of tobacco is an economically important in Poland, but even more serious in Hungary. Other important crops infected include potatoes, which is most likely the major source of...
  4. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 132, P12

    Selection of cultivars of semi-oriental tobacco, with high capacity and improved quality, resistant to TMV and PVY

    CIUPERCA A.; NASTASE I.; PAUNESCU A.D.; STROESCU M.; IOAN C.; ISPAS F.
    National Society Rumanian Tobacco S.A. Bucharest, Rumania.
    In Rumania, semi-oriental tobacco has been grown since the end of the 19th century, together with the acclimation of the tobacco Yaka in our country. The name of the Rumanian semi-Oriental tobacco is Ghimpati, which is the name given to the first...