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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. Tob. Sci., 1982, 26-32, p. 121-123, ISSN. 0082-4523

    Genetics of associated white flowers and white seed characters in Nicotiana tabacum L.

    SATYANARAYANA K.V.; LAKSHMINARAYANA R.; KRISHINA MURTHY K.V.; NARAYANA RAO R.B.
    Division of Genetics and Plant Breeding, Central Tobacco Research Institute, Rajahmundry, 533105, India
    Cultivars of Nicotiana tabacum L. normally have pink flowers and brown seeds. A white flowered and white seeded mutant occurred in a cultivar known as Jayalakshmi (JL). These associated mutant characters were recessive to pink flower and brown seed...
  4. Tob. Sci., 1981, 25-32, p. 114-117, ISSN. 0082-4523

    Isolation and identification of toxic materials from Nicotiana gossei

    PRABHU S.R.; CHAKRABORTY M.K.; SITARAMAIAH S.; JOSHI B.G.
    Central Tobacco Research Institute, Rajahmundry, India; Gujarat Agricultural University, Anand Campus, Anand, India
    Nicotiana gossei Domin, which was found to be toxic to tobacco leaf eating caterpillar, Spodoptera litura F., was examined for toxic materials. Of the various fractions tested for toxicity on the early instars, the cytoplasmic polar lipid fraction...
  5. 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...