1. Ann. Tabac, 1987, Sect. 2, num. spéc., p. 93-104., ISSN.0399-0354

    A biochemical study of tobacco subjected to "cotyledon-test" : effect of magnesium, reactions of resistant and non resistant plants to Peronospora tabacina. IV - A biochemical and cytochemical study of the beta-glucosidase

    EDREVA A.; GEORGIEVA J.D.; COUSSIRAT J.C.
    Institut of Genetics - Sofia, Bulgaria
    The beta-glucosidase (E.C. 3.2.1.20) activity of tobacco cotyledons infected with P. tabacina was investigated using chemical and cytochemical methods in the early phases of the disease before the appearance of symptoms. It was shown that the beta ...
  2. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 144, P-17

    Isogenic lines of powdery mildew (Erysiphe cichoracearum) resistant Oriental tobacco

    PALAKARTCHEVA M.; KRESTEVA Q.
    Bulgarian Academy of Science, Institute of Genetics, Sofia, Bulgaria.
    The Powdery mildew (Erysiphe cichoracearum) resistant variety of Oriental tobacco Pobeda 3 was developped in Bulgaria. The purpose of this investigation was to produce isogenic lines with oriental variety Harmanlikska basma 163 which is sensitive to this ...
  3. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 144, P-18

    Behaviour of a set of species or the genus Nicotiana and various varieties of tobacco versus powdery mildew (E. cichoracearum) in Bulgaria and in France

    PALAKARTCHEVA M.; KRUSTEVA D.; DELON R.
    (1) Institute of Genetics, Sofia, Bulgaria; (2) SEITA, France
    The pathogenicity and physiological specialization of Erysiphe cichoracearum, the agent responsible for tobacco powdery mildew have been studied in Bulgaria and in France. Inoculations were performed, using young plants obtained under conditions in which ...
  4. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 97, A-16

    Effect of water deficit or water excess during the different development stages on tobacco"Burley"

    POSTIGLIONE L.; BARBIERI G.; DE FALCO E.
    University of Naples ''Federico II'', Dept. of Agricultural Engineering and Agronomy, Portici, Naples, Italy.
    A two-year experiment was carried out in the Sele river Plain (Southern Italy) in order to evaluate the effects of water deficit or water excess on the performance of"Burley C103". Nine irrigation treatments were compared: 1) non irrigated ...