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85 results

  1. Bull. Spec. CORESTA Congress, Jerez de la Frontera, 1992, p. 167, PPOST5, ISSN.0525-6240

    Aspects concerning the resistance of the Oriental type of tobacco to Chalara elegans (Nag Raj and Kendrick)

    PAUNESCU M.; PAUNESCU A.D.; PANCIU A.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The research achieved during 1985-1990 on the varieties of Oriental type of tobacco, showed that, generally, this type of tobacco is resistant to the fungus Chalara elegans. Observations were made either in the vegetation house or in normal...
  2. Bull. Spec. CORESTA Congress, Jerez de la Frontera, 1992, p. 52, AP6, ISSN.0525-6240

    The active physiological substances influence on the quality features of tobacco seed and seedling

    BRUTARU L.; PAUNESCU A.D.; MANEA M.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The use of active physiological substances for the stimulation of the tobacco seeds has become a widespread technique. The main biostimulators, tested in our experiments, with positive effect on germination percentage and uniformity were :...
  3. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 133, P-6

    Utilization of the cultures in vitro in order to obtain tobacco genotypes with resistance to TSWV (Lycopersicum virus 3)

    PATRASCU M.; CIUPERCA A.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Immature embryos, of 4-6 days, originated in pollination of some cultivars of tobacco with Nicotiana alata which has factors of genetical resistance to Lycopersicum virus 3 (LV-3), were cultivated. Through repeated tests, the best medium of culture...
  4. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 181, S-6

    The determination of Cu, Cd, and Pb in tobacco and tobacco products by stripping anodic voltametry

    GAIVORONSKI B.S.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Stripping anodic voltametry has been used for the determination of Cu, Cd and Pb in tobacco and tobacco products. The sensitivity of the method and the established work conditions assure good reproducibility, permitting simultaneous determination of...
  5. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 95, A-14

    The test of the fertility state of the cultivated soils with tobacco through microbiological and enzymatical methods

    PAUNESCU A.D.; STEFANIC G.; PAUNESCU M.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The estimation of soil fertility cultivated with tobacco, as a result of superior yields, qualitatively and quantitatively, needs the extension of the investigation field offerred by agrochemical methods through the introduction of some indices of...
  6. Bull. Spec. CORESTA Symposium, Taormina, 1986, p. 92, S05, ISSN.0525-6240

    Contribution to the study of chemical compounds from tobacco leaf biostructure

    GAIVORONSKI B.S.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The behaviour of some chemical compounds (alkaloids, sugars, proteins, polyphenols, enzymes etc.) during the technological process of tobacco leaves constitutes the object of numerous research works. These researches were done in accordance with the...
  7. Bull. Spec. CORESTA Congress, Vienna, 1984, p. 109, P02, ISSN.0525-6240

    Behaviour of the tobacco cultivars grown in Romania to natural infection with tomato spotted wilt virus

    JILAVEANU A.; POP I.; COSTESCU M.; IOAN E.
    Research Institute for Plant Protection, Bucharest, Romania
    In one experiment conducted in 4 replications, the tobacco varieties belonging to the Oriental, Semi-Oriental and"of large consumption"types was less infected with tomato spotted wilt virus than the varieties belonging to the Virginia and, in...