Search Results

41 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 36

    Use of reverse genetic approach to study the role of tobacco trichome-produced cembratrien-diols in pest/insect interaction

    MIHAYLOVA-KROUMOVA A.(1); PEARS R.(2); FISHER C.R.(2); KORENKOV V.D.(1); ARTIOUCHINE I.S.(1); PFEUFER E.(3); WAGNER J.G.(1)
    University of Kentucky, Lexington, KY, U.S.A.
    Diterpenes cembratiene-diols (CBT-diols), sucrose esters, labdanoids and hydrocarbons are prominent tobacco trichome exudate constituents. They are considered to be the first line of defense barriers against pests/insects through chemical toxicity, ...
  2. CORESTA Congress, Kunming, 2018, Plenary Session, IG 01 (also presented at TSRC 2018)

    Production of very low nicotine Burley tobacco: short term feasibility from an agronomy viewpoint

    JACK A.M.; FISHER C.R.
    University of Kentucky, Lexington, KY, U.S.A.
    The U.S. Food and Drug Administration (FDA) has issued an Advance Notice of Proposed Rulemaking (ANPRM) to obtain information for developing a product standard that would lower nicotine to non-addictive levels. They have requested comments on a maximum ...
  3. TSRC, Tob. Sci. Res. Conf., 2018, 72, abstr. 070 (also presented at CORESTA 2018)

    Production of very low nicotine burley tobacco: short term feasibility from an agronomy viewpoint

    JACK A.M.; FISHER C.R.
    University of Kentucky, Lexington, KY, USA
    The FDA has issued an ANPRM to obtain information for developing a product standard that would lower nicotine to non-addictive levels, and requested comments on a limit of around 0.3-0.5 mg/g. We do not believe that this limit is technically feasible on a ...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 09

    The effect of farm vehicle exhaust emissions on TSNAs

    FISHER C.R.(1); KINNEY J.(1); JACK A.M.(2)
    (1) University of Kentucky, Department of Plant and Soils, Lexington, KY, U.S.A.; (2) University of Kentucky, Kentucky Tobacco Research and Development Center, KTRDC Building, Lexington, KY, U.S.A.
    Even low concentrations of nitrogenous gases (NOx) produced during combustion in direct-fired flue-cured barns increase tobacco-specific nitrosamines (TSNAs) in the cured leaf. Previous work in France and Kentucky, and in our recent storage study, has ...
  5. 47th TWC, Tob. Work. Conf., 2016, abstr. 16

    Effect of artificial ordering on TSNAs in burley tobacco during short term bulking between takedown and stripping

    FISHER C.R.; JACK A.M.; BUSH L.P.; PEARCE R.
    University of Kentucky, Lexington KY USA
    Production guidelines caution burley tobacco growers against using water sprays to bring tobacco into case and storing high-moisture tobacco because of concerns that these practices can lead to the accumulation of TSNAs. A series of experiments over three ...
  6. 47th TWC, Tob. Work. Conf., 2016, abstr. 54

    Topping and suckercide treatments trigger global changes in gene expression in tobacco

    PATTANAIK S.(1); SINGH S.K.(1); FISHER C.R.(1); YUAN L.(1); LAWSON D.(2);
    (1) University of Kentucky, Lexington KY USA; (2) R.J. Reynolds Inc., Winston Salem, NC USA
    Topping and control of formation of suckers are common agronomic practices that significantly impact the yield and quality of various crop plants. Application of suckercides to plants following topping is a common method for sucker control. Tobacco ...
  7. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 44 (also presented at TSRC 2016)

    Establishing a sampling protocol to estimate tobacco specific nitrosamines in growers’ bales: results from the first year of a two year study

    FISHER C.R.(1); McQUERRY K.(2)
    (1) University of Kentucky, Plant & Soil Sciences, Plant Sciences Building, Lexington, KY, U.S.A.; (2) University of Kentucky, Department of Statistics, Multidisciplinary Science Building, Lexington, KY, U.S.A.
    The CORESTA Sub-Group “TSNA in Air-Cured and Fire-Cured Tobacco” is drafting a protocol for the procedure of sampling bales of tobacco presented for sale by the grower. At the Sub-Group meeting in 2014, several queries were raised including the number of ...