Search Results

36 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 37

    Loss-of-function of a tobacco eukaryotic translation initiation factor confers resistance to tobacco bushy top virus

    SHINJO A.; TAKAKURA Y.; UDAGAWA H.; KOGA K.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Tobacco bushy top disease causes severe damage to tobacco (Nicotiana tabacum) in Sub-Saharan African countries such as Malawi, Zambia and Tanzania. Reportedly this disease is caused by a complex of tobacco bushy top virus (TBTV, the genus Umbravirus) and ...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 45

    Preliminary study on the metabolites of Spirotetramat in tobacco for possible residue definition

    OYAMA K.(1); NAKABAYASHI T.(1); NAKAJIMA K.(1); VANN M.C.(2)
    (1) Japan Tobacco, Inc., Leaf Tobacco Research Center, Oyama-shi, Tochigi, Japan; (2) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Residue definitions are determined for enforcement/risk assessment purposes when legislative Maximum Residue Levels for food/feed are established. Spirotetramat (SP) is an insecticide and has been selected as one of the Guidance Residue Level (GRL) ...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 49

    Potential alternative control for Ephestia spp. using parasitoid wasps

    KÖHLER A.(1); PEZZINI C.(1); ROESCH F.(2); FEUERBORN M.(2)
    (1) Universidade de Santa Cruz do Sul (UNISC), Laboratory of Entomology, Santa Cruz do Sul, RS, Brazil; (2) Japan Tobacco International (JTI), Santa Cruz do Sul, RS, Brazil
    Different practices are already used to control lepidopteran pests in stored tobacco, mostly including chemical or physical practices, preventive or disinfesting. Biological methods, used more frequently in tobacco field sites, are not used yet in stored ...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 08

    Molecular mechanism of powdery mildew resistance in tobacco

    ARAI M.; TAJIMA T.; SATO S.; KOMATSU T.; FUJIMURA T
    Japan Tobacco Inc., Leaf Tobacco Research Center, Tochigi, Japan
    Powdery mildew caused by Erysiphe cichoracearum is a major disease of tobacco affecting a wide area including Asia. The Japanese domestic air-cured tobacco cultivar Kokubu (syn. Kou-fan) exhibits extremely high resistance to powdery mildew by recessive ...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 24

    Effect of time and concentration on mortality of the cigarette beetle, Lasioderma serricorne (F.), fumigated with phosphine

    FUKAZAWA N.; TAKAHASHI R.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Tochigi, Japan
    Fumigant efficacy is determined by its concentration (C) and exposure time (t). For typical fumigants such as methyl bromide, the product of C and t is constant (Ct = k) to produce a specific toxic effect for a given insect species. Under these ...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, APPOST 37

    Extraction of volatile flavour compounds from tobacco leaf in a low-density polyethylene membrane

    YOKOI M.(1); SHIMODA M.(2)
    (1) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan; (2) Kyushu University, Fukuoka, Japan
    Tobacco leaves have various aromas. Many of the volatile flavour compounds in dried leaves have been investigated and reported. Although fresh tobacco leaves have their own aroma, post-harvest processes, such as heating and drying, generate flavour ...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 28

    Decrease in the carbohydrate (starch and sugar) content of flue-cured tobacco leaves by reduced expression of the genes related to starch biosynthesis

    SUZUKI S.(1); NOGUCHI S.(1); YAMAGUCHI N.(1); FUJISAKI T.(2); HIYOSHI T.(1)
    (1) Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan; (2) Japan Tobacco Inc., R&D Planning Div., Tokyo, Japan
    Starch and sugar (carbohydrate) contents of flue-cured tobacco leaves produced in Japan, which are higher than in other countries, are related to the low filling capacity of cut rag. Reducing the contents is expected to improve its applicability to ...