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  1. Bull. Spec. CORESTA Symposium, Winston-Salem, 1982, p. 65, P07, ISSN.0525-6240

    Evaluation of recent fungicides on the control of seed bed diseases of tobacco

    NAGARAJAN K.; REDDY T.S.N.
    Central Tobacco Research Institute (CTRI), Division of Plant Pathology, Rajahmundry (A.P.), India
    In India, the most common endemic seed bed diseases on tobacco are damping off (Pythium aphanidermatum), black shank (Phytophthora parasitica f. nicotianae), and the frogeye spot (Cercospora nicotianae). These diseases together cause heavy damage...
  2. Bull. Spec. CORESTA Symposium, Winston-Salem, 1982, p. 70, P11, ISSN.0525-6240

    Performance of mosaic and powdery mildew resistant tobacco varieties in India

    SASTRI A.B.; NAGARAJAN K.; ELIAS N.A.; MOSES J.S.L.; REDDY T.S.N.
    Central Tobacco Research Institute (CTRI), Division of Plant Pathology, Rajahmundry (A.P.), India
    Initial screening of germ plasm indicated that, among Nicotiana tabacum cultivars,"Kuofan"was resistant to the Indian strain of Erysiphe cichoracearum and"Vamorr-50"was resistant to the Indian strain of tobacco mosaic virus. In India, mosaic is...
  3. Bull. Spec. CORESTA Congress, Manila, 1980, p. 100, AP05, ISSN.0525-6240

    Studies on the persistence of residues of chloropyriphos insecticide on tobacco

    GOPALACHARI N.C.; GOVINDA RAO S.; GOPALAKRICHNA C.V.S.S.V.
    Central Tobacco Research Institute (CTRI), Rajahmundry (A.P.) India
    The persistence of chloropyriphos insecticide residues was studied in green leaf at harvest, cured leaf and after storage for six months a year. The effects of soil application through the transplanting water and 2 to 5 foliar sprays at fortnightly...
  4. Tob. Sci., 1958, 2-12, p. 53-63, ISSN.0082-4523

    Resistance to the root-knot disease of tobacco

    CLAYTON E.E.(1); GRAHAM T.W.(2); TODD F.A.(3); GAINES J.G.(4); CLARK F.A.(5)
    (1) American Sumatra Tobacco Corp; (2) USDA and South Carolina Agricultural Experiment Station; (3) North Carolina State College; (4) USDA and Georgia Coastal Plain Experiment Station (5) Florida Agricultural Experiment Station - USA
    This study of resistance to the root-knot-nematode disease of tobacco (Meloidogyne incognita) was begun in 1935. Collections of Nicotiana tabacum were obtained from Mexico, Central and South America and tested for resistance. TI 706 was selected as...