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78 results

  1. Tobacco Science & Technology, 2010, 9, p. 40-42., ISSN.1002-0861

    Nicotine contents in flue-cured tobacco of different varieties and growing areas in Yunnan

    WU YU-PING; DENG JIAN-HUA; WEN DA-RONG; ZHAO LI-HONG; CHEN PING
    Yunnan Academy of Tobacco Agricultural Science, Yuxi 653100, Yunnan, P.R. China
    In order to provide the data of nicotine content in tobacco from Yunnan for cigarette manufacturers, 13912 flue-cured tobacco samples of 4 major cultivars, [Yunyan 85, K326, Honghuadajinyuan (Hongda) and Yunyan 87] from 12 growing areas in Yunnan...
  2. Tobacco Science & Technology, 2010, 9, p. 43-46., ISSN.1002-0861

    Rapid determination of organophosphorous pesticide residues in tobacco by GC/MS

    SHI JIE(1); YANG JING(1); LIU HUI-MIN(2); HU BIN(2); TAO PENG-LI(1); YAN HUI-HUI(1)
    1. Department of Chemistry, Zhengzhou University, Zhengzhou 450001, P.R. China; 2. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    A method for fast determining the organophosphorous pesticide residues in tobacco was developed. Tobacco samples were extracted with acetonitrile, cleaned up with primary secondary amine adsorbent and detected by gas chromatography-mass spectrometry....
  3. Tobacco Science & Technology, 2010, 9, p. 47-50., ISSN.1002-0861

    Determination of mercury in mainstream cigarette smoke by cold atomic absorption spectrometry

    PANG YONG-QIANG; CHEN ZAI-GEN; CHEN HUAN; JIANG XING-YI; TANG GANG-LING; HU QING-YUAN
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    A method for determining the mercury (Hg) content in mainstream cigarette smoke by 50 mg/mL acidic potassium permanganate solution collector, microwave digestion, and SnCl2 reduction-cold vapor atomic absorption spectrometry was investigated, and 12...
  4. Tobacco Science & Technology, 2010, 9, p. 5-9., ISSN.1002-0861

    Mathematical model for equilibrium moisture content of tobacco leaf under high temperature and relative humidity

    ZHENG SONG-JIN(1,2); LI BIN(1); WANG HONG-SHENG(1)
    1. Key Laboratory of Tobacco Processing Technology, CNTC, Zhengzhou 450001, P.R. China; 2. Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China
    In order to study the moisture absorption of tobacco leaf during processing, the absorption characteristic curves of tobacco leaf under different relative humidities (in the range of 30% to 90%) and temperatures (60, 70 and 80 °C), respectively, were...
  5. Tobacco Science & Technology, 2010, 9, p. 51-56., ISSN.1002-0861

    Genetic analysis of aromatic component contents in Burley tobacco

    CHENG JUN-QI(1); ZHANG XIN-JUN(2); BI QING-WEN(2); ZHOU QUN(3); WANG YI(1); LIN GUO-PING(1)
    1. Burley Tobacco Experimental Station of CNTC, Hubei Tobacco Research Institute, Wuhan 430030, P.R. China; 2. China Tobacco Hubei Industrial Co., Ltd., Wuhan 430051, P.R. China; 3. School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
    With the full diallel crossing combination of burley tobacco varieties Ky14, Ky8959, B21, B37, Jianxuan 3 and Bx2003, the aroma component contents in leaves from 12th and 18th stalk positions were determined with GC/MS and genetically analyzed. The...
  6. Tobacco Science & Technology, 2010, 9, p. 57-60., ISSN.1002-0861

    Effects of upper leaf harvesting methods on physicochemical and economic properties of flue-cured tobacco

    GAO WEI-KAI(1); SHI HONG-ZHI(1); LIU GUO-SHUN(1); DU SHAO-MING(2); WANG JIAN-AN(1); YA PING(2); ZHANG XIAO-YUAN(2)
    1. National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou 450002, P.R. China; 2. Lincang Tobacco Company of Yunnan Province, Lincang 677000, P.R. China
    Flue-cured tobacco samples from Lincang tobacco growing area was used to investigate the effects of harvesting methods (upper leaves harvest completed by two primings at regular interval and by one priming) on physical character, chemical composition...
  7. Tobacco Science & Technology, 2010, 9, p. 61-64., ISSN.1002-0861

    Screening of tobacco mutant plant SN02 against PVYN from K326 and physiological and biochemical properties of the same

    YANG LI-YE; WU YUAN-HUA; ZHAO XIU-XIANG
    College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, P.R. China
    A naturally mutant plant highly resistant to Potato virus Y-vein necrosis strain (PVYN) has been screened from cv. K326 with virus sap rub inoculation and numbered as SN02. The contents of defensive enzymes in tobacco seedlings and chlorophyll a and...
  8. Tobacco Science & Technology, 2010, 9, p. 65-66., ISSN.1002-0861

    Field efficacy of 27.12% copper sulfate basic SC against climate spot disease of tobacco

    WANG XIN-SHENG; WANG GUI-BIN; LU HUI-ZHI; ZHOU JUN
    Plant Protection and Quarantine Station of Chuxiong State, Yunnan Province, Chuxiong 675000, Yunnan, P.R. China
    The efficacy of copper sulfate basic SC at different dosage was determined with field experiments. The results showed that the control efficacy of 27.12% copper sulfate basic SC against the climate spot disease of tobacco ranged from 53.68 to 65.60%,...