Search Results

79 results

  1. CORESTA Meeting, Agronomy/Phytopathology, Rovinj, 2009, AP 05

    Breeding Burley tobacco lines with resistance to root decay caused by Pythium spp

    ENDER M.; DA ROCHA A.B.; DE SOUZA M.V.; WILLANI, S.A.
    Universal Leaf Tabacos Ltda, Santa Cruz do Sul, RS-Brazil.
    Diseases of tobacco caused by Pythium spp. can start as damping-off of seedlings, evolve as root and stem rot of young plants, and finally cause root decay of field plants. Root and stem rot of tobacco reduces stands more than 20% in some fields, and...
  2. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 28

    Orobanche ramosa on tobacco in France: extension, biology and control methods

    BRAULT-HERNANDEZ M.; MORNET F.
    Université Pierre et Marie Curie, Laboratoire de Parasitologie Végétale, Paris, France
    For a few years, in France, Orobanche ramosa L. (broomrape) has become a real agronomic threat in three important industrial crops: winter rape, tobacco and hemp. In 2003, it was observed parasitizing tobacco and hemp and 22 out of the 96 French...
  3. CORESTA Congress, Paris, 2006, APOST 07

    Genetic improvement of Nicotiana tabacum by applying remote hybridization and biotechnological methods

    NIKOVA V.; IANCHEVA A.M.; VLADOVA R.; PANDEVA R.; PETKOVA A.
    Bulgarian Academy of Science, Institute of Genetics, Sofia, Bulgaria.
    Wild Nicotiana species possess a high potential of useful features. Interspecific hybridization is a very effective method for the introducing of desired characters into tobacco and achieving crop improvement. Its successful realization is...
  4. CORESTA Congress, Paris, 2006, APOST 24

    Color and aroma of tobacco: a facilitated approach for their objective evaluation in Oriental tobaccos and for cultivar classification within Virginia and Oriental tobacco types

    DAGNON S.; EDREVA A.; VLADOVSKA A.
    Tobacco and Tobacco Products Institutes, Plovdiv, Bulgaria; D. Kostov Inst. of Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria.
    In the routine practice the evaluation of colour and smoke aroma, major qualitative characteristics of tobacco, is mainly based on organoleptic estimates by expert panels, with this suffering from subjectivity, high costs and health hazards. We...
  5. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 24

    Hybrid seed production in tobacco by using male sterile plants

    NIKOVA V.; NIKOLOV E.; IANCHEVA A.; PANDEVA R.; PETKOVA A.
    Institute of Genetics, Sofia, Bulgaria; Tobacco and Tobacco Products Institute, Plovdiv, Bulgaria; Reg. Ctre for Scientific Investig. & Prod. of Tobacco, Haskovo, Bulgaria.
    The introduction of hybrid crop varieties has enabled spectacular growth in productivity owing to hybrid vigor and increased uniformity. To produce hybrid seeds, a pollination control system is required to prevent unwanted self-pollination. New...