1. Bull. Spec. CORESTA Congress, Manila, 1980, p. 100, AP06, ISSN.0525-6240

    Obtaining varieties of Nicotiana tabacum low in nicotine content by induced androgenesis

    GRANDE M.D.; MORENO M.V.; DE ANGULO C.F.
    Instituto Technologico del Tabaco, Sevilla, Spain
    For several years the I.T.T. in Sevilla has been working on obtaining new lines of tobacco, low in nicotine content, by the induced androgenesis procedure. The techniques used, with some variants, are those which J. P. Bourgin and J. P. Nitsch described ...
  2. Bull. Spec. CORESTA Congress, Manila, 1980, p. 62, A16, ISSN.0525-6240

    Influence of potassic fertilizers on the quality and the yield of burley tobacco

    LLANOS M.; GOMEZ DE LEON J.M.
    Tobacco Institute of Technology, Enrique Alcaraz Mira, Seville, Spain
    Considering that only two types of potash (chloride and sulphate) are available on the Spanish market, the influence of both of them on the quality and yield of Burley was studied. Several doses of N, P, K, the latter either as chloride or as sulphate, ...
  3. Bull. Spec. CORESTA Congress, Manila, 1980, p. 63, A17, ISSN.0525-6240

    Chemical characteristics of the tobacco and of the smoke in relation to the stalk position

    LLANOS M.; ORTIZ M.; DEL PRADO M.
    Tobacco Institute of Technology, Enrique Alcaraz Mira, Seville, Spain
    The industrial and commercial value ("usability") of the tobacco leaf is influenced by the stalk position. In Spain, Burley is the tobacco variety grown on the largest scale. All the producing countries redry the Burley leaf after the curing ...
  4. Bull. Spec. CORESTA Congress, Manila, 1980, p. 68, A21, ISSN.0525-6240

    Localized drop-by-drop irrigation system. Experimental growing of dark air-cured and light air-cured with different N and K2O levels

    OLIVER J.; GALBIS J.A.; MARQUEZ S.
    Instituto Technologico del Tabaco, Sevilla, Spain
    During the summers 1976/1977 we have carried out trials of drop-by-drop irrigation on tobacco. During the first year we have grown dark air-cured tobacco on plots of 40 plants, during the second year dark and light air-cured on plots of 100 plants. The ...