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5 results

  1. CORESTA Meeting, Agronomy/Phytopathology, Bucharest, 2003, P 02

    Thrips pest management tactics for suppressing tomato spotted wilt virus in flue-cured tobacco in Georgia, USA

    McPHERSON R.M.; MOORE J.M.; CONNELLY F.; JACOBS J.
    University of Georgia, Dept. of Plant Pathology, Tifton, GA, USA.
    The influence of four foliar insecticide treatments, with and without a preplant tray drench treatment of the plant activator acibenzolar-S-methyl (Actigard), and three tray drench treatments, with and without foliar applications of Actigard, were ...
  2. CORESTA Meeting, Agronomy/Phytopathology, Bucharest, 2003, PPOST 14

    The evaluation of concentration and detection methods of tobacco mosaic virus in water

    LIU Yong; MO Xiaohan; YU Qing; YANG Longpu; LI Tianfei
    Yunnan Academy of Tobacco Science, Key Lab of Biotechnology, CNTC, Kunming, China.
    In order to evaluate concentration and detection methods of Tobacco Mosaic Virus in water, two kinds of samples were prepared by adding TMV infected tobacco leaf juice in water with and without soil granules, then concentrated using the low speed ...
  3. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 06

    A study of the extraction of tobacco with supercritical carbon dioxide

    YANG Yekun; LI Xuemei; ZHANG Xiaolong; ZHOU Jin; CHENG Jun
    Yunnan Academy of Tobacco Science, Kunming, Yunnan, China
    In general, the quality of the extracts by SCFE is superior to that of extracts by conventional processes (such as stream distillation and solvent extraction). The aim of this work was to extract tobacco using supercritical carbon dioxide fluid and ...
  4. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 07

    A study of the determination of several heavy metals in tobacco and a tobacco additive by Solid Phase Extraction and HPLC

    LIU Wei; LI Zhong; CHEN Zhangyu; WANG Baoxing; SHI Honglin; YANG Guangyu; ZHANG Yunhuai
    Yunnan Academy of Tobacco Science, Key Laboratory of Chemistry & Engineering, Kunming, Yunnan, China.
    A method for the determination of copper, nickel, tin, lead, cadmium and mercury in tobacco and a tobacco additive by solid phase extraction and high performance liquid chromatography (HPLC) has been studied. The samples were digested by microwave. The ...
  5. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 08

    A determination of aromatic amines in tobacco by Solid Phase Extraction and High Performance Liquid Chromatography

    HUANG Haitao; WANG Baoxing; LIU Wei; WANG Lang; LI Zhong; CHEN Zhangyu; YANG Guangyu
    Yunnan Academy of Tobacco Science, Key Laboratory of Chemistry & Engineering, Kunming, Yunnan, China.
    A new method for the determination of aromatic amines (aniline, p-methylaniline, 2,4-dimethylaniline, 2,4,6-trimethylaniline, 1-naphthylamine, 2-naphthylamine) in tobacco by solid phase extraction and high performance liquid chromatography (HPLC) is ...