Search Results

8 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 44

    Resistance mechanism of Phytophthora nicotianae to dimethomorph

    MU Wenjun; HU Liwei; SONG Jizhen; GUO Jianhua; XI Jiaqin; XUE Chaoqun
    Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    Tobacco black shank is an important oomycete disease that can cause serious tobacco yield loss in China. As a new fungicide, dimethomorph, has been used more and more widely to replace metalaxyl to control tobacco black shank. As the emergence of ...
  2. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, APPOST 25

    Resistance-risk assessment of Phytophthora nicotianae to dimethomorph and fungicide combination development

    MU Wenjun; XUE Chaoqun; XI Jiaqin; HU Liwei; LIU Fang; SONG Jizhen
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    Dimethomorph is a carboxylic acid amide (CAA) fungicide with high activity against the tobacco pathogen Phytophthora nicotianae. We investigated the risk that P. nicotianae can develop resistance to dimethomorph and screened the fungicide mixture ...
  3. Tobacco Science & Technology, 2012, 1, p. 52-56., ISSN.1002-0861

    Relationship between physical-chemical indexes and full flavor style degree of flue-cured tobacco leaves

    XUE Chaoqun(1); WANG Jianwei(1); XI Jiaqin(1); YANG Lijun(2)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Zhumadian Tobacco Company of Henan Province, Zhumadian 463000, Henan, P.R. China
    Sixty C3F samples of flue-cured tobacco leaves were collected from Zhumadian to analyze the relationship between physical-chemical indexes and full flavor style degree of leaves with correlation analysis and stepwise regression analysis. The results ...
  4. Tobacco Science & Technology, 2012, 7, p. 86-90, ISSN.1002-0861

    Effects of application rate of agri soil conditioner on aroma quality of flue-cured tobacco leaves

    XUE Chaoqun(1); WANG Jianwei(1); XI Jiaqin(1); YANG Lijun(*2)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Zhumadian Tobacco Company of Henan Province, Zhumadian 463000, Henan, P.R. China
    Field experiments were carried out to study the effects of different Agri soil conditioner application rates (0, 3.75, 7.50, 11.25, 15.00 kg/ha) on aroma components, sensory quality and economic characteristics of flue-cured tobacco leaves. The results ...
  5. Tobacco Science & Technology, 2011, 12, p. 9-13., ISSN.1002-0861

    Relationship between physical-chemical indexes and burnt sweet taste of flue-cured tobacco leaves

    XUE CHAO-QUN(1); WANG JIAN-WEI(1); XI JIA-QIN(1); YANG LI-JUN(2); JIANG JUN-TING(3)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Zhumadian Tobacco Company of Henan Province, Zhumadian 463000, Henan, P.R. China; 3. Zhumadian Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Zhumadian 463000, Henan, P.R. China
    Sixty flue-cured tobacco leaf samples were collected from Zhumadian, the relationships between physical-chemical indexes and level of burnt sweet taste were studied with correlation analysis and stepwise regression analysis. The results showed that: 1) ...
  6. CORESTA Congress, Edinburgh, 2010, AP 07

    Isolation of protein from Spinacia oleracea against tobacco mosaic virus and research on the antiviral mechanism

    JIN Guanghui; YANG Jun; YIN Qisheng; SONG Jizhen; JIN Lifeng; XUE Chaoqun; LUO Chaopeng
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    Tobacco mosaic virus (TMV) is a worldwide-occurring tobacco viral disease and usually results in big losses in tobacco production. How to inhibit TMV infection and replication has become a hotspot in the field of plant virus disease control. Antiviral ...
  7. Tobacco Science & Technology, 2008, 4, p. 49-52, ISSN.1002-0861

    Quantitative relationship between leaf area index and canopy reflection spectrum index of flue-cured tobacco

    WANG JIAN-WEI; XUE CHAO-QUN; ZHANG YAN-LING
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    In order to find out the relationship between leaf area index (LAI) and characteristics of canopy reflection spectrum of flue-cured tobacco, the spectral reflectance of tobacco canopy against different LAI was measured and the quantitative relationship ...
  8. Tobacco Science & Technology, 2007, 12, p. 63-5, ISSN.1002-0861

    Identification and field occurrence rule of suspected tobacco PVX pathogen in Henan

    XUE CHAO-QUN; YANG JUN; XI JIA-QIN
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    The pathogen type and field occurrence rule of suspected tobacco PVX in Henan were studied with DAS-ELISA and multi-spot field experiment. The results showed that: 1) the pathogen of suspected tobacco PVX in Henan was potato virus Y; 2) the symptom was ...