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11 results

  1. Ann. Tabac, 1996, Sect. 2-28, p. 1-12., ISSN.0399-0354

    Transfer of male sterile characteristics in tobacco by androgenesis in situ : importance of the method in selection programmes

    HORLOW C.; DELON R.; BARDON J.C.
    SEITA, Institut du Tabac, Bergerac, France
    From 1989 to 1991 studies were conducted to compare the interest of two methods: back-cross and spontaneous androgenesis to convert fertile tobacco lines into sterile lines and the influence of several cytoplasms. In two years, it is possible, with the ...
  2. Ann. Tabac, 1998, Sect. 2-30, p. 27-40., ISSN.0399-0354

    Evolution of mycoflora of dark air-cured tobacco, from harvest to fermentation, and effects on raw material

    DELON R.; TANCOGNE J.; DE SALLES DE HYS L.
    SEITA, Institut du Tabac, Bergerac, France
    Development of mycoflora of dark air-cured tobacco leaves was studied in the field until fermentation and storage. Succession of fungal species through the different steps is described. Factors that may limit their development were examined. An analysis ...
  3. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP08

    Leaf quality and yield of Burley and dark air cured tobacco varieties when inoculated with potato virus Y necrotic strain (PVY<sup>N</sup>) or with cucumber mosaic virus (CMV-DTL) in field conditions

    VERRIER J.L.; CAILLETEAU B.; DELON R.; TEPFER M.
    SEITA, Institut du Tabac, Bergerac, France; INRA, Laboratoire de biologie cellulaire, Versailles, France
    The results of 1997 and 1998 field trial with air cured tobacco, comparing non-inoculated controls with mechanically inoculated plots, under conditions of low natural incidence of non persistent aphid-transmitted viruses, lead to the following conclusions ...
  4. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP40

    Influence of curing procedures and nornicotine potential on TSNA formation in three varieties of dark tobaccos

    DE ROTON C.; SAN L.H.; VIDAL B.
    SEITA, Institut du Tabac, Bergerac, France
    Due to their genotype and curing mode, air-cured tobaccos usually have a higher content in tobacco-specific nitrosamines (TSNA) than Virginia flue-cured varieties. Two studies were conducted at the Bergerac Institute in 1996 and 1997 to measure the effect ...