Search Results

1837 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 16

    Fungicide and starter fertilizer placement at transplanting

    STAINBACK C.G.; VANN M.C.; MACHACEK J.L.; CHEEK J.A.; WHITLEY D.S.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Starter fertilizer and fungicide products are commonly included in transplant water solutions. It has been hypothesized that a different placement strategy is needed in order to minimize chemical and soluble salts injury. Research was initiated in...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 18

    Study on hyperspectral multivariate linear prediction model of tobacco leaf nitrogen content

    GUO Ting; LI Wujin; XIAO Xi; LI Hongguang; LI Wen
    Chenzhou Tobacco Company, Chenzhou City, Hunan Province, China
    The nitrogen content of tobacco leaves has a direct bearing on the gene expressions of nitrogen metabolism-related enzymes and on the amount of nitrogen metabolites (Alinat et al., 2015). Hyperspectral remote sensing, originating in the 1920s, offers...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 19

    Automatic discrimination planting areas of flue-cured tobacco based on near-infrared spectroscopy technology and support vector machine improved by whale optimization algorithm

    QIU Changgui(1,2); LIU Ze(3); QI Lin(4); YANG Jingjin(4); WANG Xianguo(4); WENG Ruijie(4); LIU Jihui(4); WEI Qing(1); LIU Jing(1,2); YANG Panpan(1,2); LI Siyuan(4)
    (1) Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming, China; (2) Yunnan Comtestor Co., Ltd., Kunming, China; (3) China Tobacco Yunnan Industrial Co., Ltd., Kunming, China; (4) Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming, China
    A study was carried out to accurately and rapidly identify planting areas of flue-cured tobacco. A total of 201 flue-cured tobacco samples from three different areas in Kunming, Honghe and Qujing, Yunnan Province were selected for the study. After...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 20

    Design and testing of sinusoidal curve variable frequency control system for circulating fan in bulk curing barn

    WANG Jianan(1); YIN Guangting(2); CHEN Xiaolong(2); SHEN Hongtao(2); DUAN Weidong(2)
    (1) College of Tobacco Science / Tobacco Harm Reduction Research Center, Henan Agricultural University, Zhengzhou, China; (2) China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
    Scientific control of wind speed between tobacco leaves can improve quality of tobacco after cured in bulk curing barn. Regarding the light colour and high power consumption caused by inaccurate control of the current circulating fan, and different...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 23

    Multiresidue method for the determination of pesticides in tobacco (Nicotiana tabacum)

    ACAYABA R.; VALESE A.C.; CARDOSO V.H.R.; SALERNO G.; ELIAS V.O.
    Eurofins do Brasil, Indaituba, SP, Brazil
    The development and validation of an analytical Multiresidue Method for the determination of 155 pesticides in the Nicotiana tabacum, or cultivated tobacco, using QuEChERS extraction followed by different techniques: (1) HPLC-MS/MS (55 compounds),...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 24

    Complete sequencing of the tobacco (Nicotiana tabacum) genome and transcriptome as a tool for discovering new resistance markers and gene functionalities

    BEZERRA R.S.(1); SILVA E.(1); MORGATHO V.(1); GOULART R.(2); DORO M.R.(2); PEREIRA A.M.(2); CARRARA G.(2); ELIAS V.O.(3); ACAYABA R.(3)
    (1) Eurofins | Centro de Genomas, São Paulo, SP, Brazil; (2) Eurofins | Agroscience, Indaituba, SP, Brazil; (3) Eurofins do Brasil, Indaituba, SP, Brazil
    With advances in next-generation sequencing technologies (NGS), it becomes increasingly accessible to use this technique in relation to traditional molecular biology methodologies. Nowadays, most experiments for tobacco genetic improvement are...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, APPOST 25

    Physiological and molecular analysis on colour mutant lines reveals relationship between chlorophyll and nitrate and TSNA content in flue-cured tobacco

    FENG Yuqing; SHI Hongzhi; ZHAO Yuanyuan; LI Yujing
    College of Tobacco Science / Tobacco Harm Reduction Research Center, Henan Agricultural University, Zhengzhou, China
    Burley tobacco is particularly susceptible to TSNA formation because the cultivars exhibit a chloroplast-deficient phenotype. Previous studies showed that the lack of chlorophyll had negative effect on photosynthesis and nitrogen use efficiency...
  8. CORESTA Meeting, Smoke Science/Product Technology, 2023, Cancun, IGPOST 01; CORESTA Meeting, Agronomy/Phytopathology, 2023, Cancun, IGPOST 01 (also presented at TSRC 2023)

    CORESTA strategy, cooperation and achievements

    LINDHOLM J.(1); DIGARD H.(2); STEVENS R.(3); COLARD S.(4)
    (1) Swedish Match AB, Stockholm, Sweden; (2) BAT Investments Limited, R&D Centre, Southampton, U.K.; (3) RAI Services Company, Winston Salem, NC, U.S.A.; (4) CORESTA, Paris, France
    The mission of CORESTA is to promote and facilitate international cooperation and best practices in scientific research relative to tobacco and its derived products. Solidly based governance rules are defined and published to optimally fulfil this...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2023, Cancun, STPOST 01

    Statistical derivation of a fold-change cut-off for non-targeted differential screening studies based on analytical method variability

    KLEINHANS S.; LANG G.; GOUJON-GINGLINGER C.
    PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
    Chemical characterization of smoke-free products relies on both validated quantitative methods for specific analytes and screening methods such as non-targeted differential screening (NTDS). The latter approach identifies compositional differences...