Search Results

263 results

  1. Ann. Tabac, 1987, Sect. 2-21, p. 31-8., 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. V - Effect of chloroethylphosphonic acid (CEPA) on the peroxydase activity and its isozymic pattern

    COUSSIRAT J.C.; EDREVA A.
    SEITA, Institut du Tabac, Bergerac, France
    The study of global peroxidase activity and isozymic pattern which is characteristic of different stages of plant development allows to understand the ontogenic acceleration of tobaccos at the cotyledon stage when fed with a solution of magnesium and ...
  2. Ann. Tabac, 1987, Sect. 2-21, p. 39-47., ISSN.0399-0354

    Biochemical study of tobacco subjected to cotyledon-test conditions : Effect of magnesium, reactions of resistant and non-resistant plants to Peronospora tabacina. VI - A biochemical and cytochemical study of peroxidases in contaminated tobaccos

    EDREVA A.; GEORGIEVA J.D.; COUSSIRAT J.C.
    SEITA, Institut du Tabac, Bergerac, France
    Peroxidases and their isoenzyme pattern were studied in two groups of young plants: one resistant to P. tabacina and the other susceptible to P. tabacina during the stages of installation and development of the parasite. When plants were cultivated on ...
  3. Ann. Tabac, 1987, Sect. 2-21, p. 99-109., ISSN.0399-0354

    Comparison of different trap systems as means of sampling populations of Lasioderma serricorne in tobacco warehouses

    GENEVE R.; DELON R.; COCAIGN J.M.
    CERTTA, Centre d'Essais et de Rech. Tech. Tab., Fleury les Aubrais, France
    In tobacco warehouses, it is of the highest importance to detect the presence of Lasioderma serricorne, in order to quickly set an appropriate insect control. This study analyses the data from warehouse trials carried out in 1986 with three cigarette ...