1. Tob. Reporter, 1994, 121-5, p. 62-5. Tob. Sci, 1994, 38, p. 38-41, ISSN.0361-5693

    Assessing the quality of Burley tobacco. Part 1 : Grade index and associated factors

    BRIDGES T.C.; WALTON L.R.; CASADA J.H.
    University of Kentucky, Agric. Engineering Dept., Lexington, KY, USA
    This study determined an average yearly grade index (GID) from sales data for Burley tobacco for the years 1959-1990. This index was used as a quality measure for each crop year. Several leaf-group, leaf-color, and seasonal-crop variables were...
  2. Tob. Reporter, 1994, 121-6, p. 60-6. Tob. Sci, 1994, 38, p. 42-8, ISSN.0361-5693

    Assessing the quality of Burley tobacco. Part 2 : Environmental and timeliness factors

    BRIDGES T.C.; WALTON L.R.; CASADA J.H.
    University of Kentucky, Agric. Engineering Dept., Lexington, KY, USA
    This paper considered growing and harvest season variables that correlated with various leaf and color groups making up the yearly grade index (GID) for Burley tobacco for 1959-1990. Weekly degree day sums (GDIFF), consisting of temperatures above...
  3. Tob. Reporter, 1994, 121-9, p. 84-7. Tob. Sci, 1994, 38, p. 68-71., ISSN.0361-5693

    The determination of scopoletin in mainstream tobacco smoke

    RISNER C.H.; PARSONS S.V.; WINKLER L.S.
    R.J. Reynolds Tobacco Company, Bowman Gray Technical Center, Winston-Salem, NC, USA
    A method was developed that determines the scopoletin content of mainstream cigarette smoke. A Cambridge pad containing the wet total particulate matter (WTPM) of five cigarettes was extracted with 1% acetic acid (HAc), and the extract was subjected...
  4. Tob. Reporter, 1993, 120-8, p. 68-74. Tob. Sci, 1993, 37, p. 42-8, ISSN.0361-5693

    Analyzing the investment potential of a wire-strung portable frame system for expanding Burley tobacco production

    NUTT P.J.; SNELL W.M.; CASADA J.H.
    University of Kentucky, Agric. Econ. Dept., Lexington, KY, USA
    The potential economic returns of investing in a wire-strung portable frame system (WFS) or of building a conventional burley tobacco barn and using the conventional harvesting system (CHS) were analyzed for various production expansion scenarios...
  5. Tob. Reporter, 1993, 120-9, 69-73. Tob. Sci, 1993, 37, p. 49-53, ISSN.0361-5693

    Collection and ion chromatographic determination of nitrous acid in air

    RISNER C.H.
    R.J. Reynolds Tobacco Company, Bowman Gray Technical Center, Winston-Salem, NC, USA
    An active sampling method based on a solid-phase collection medium was used to determine nitrous acid concentrations in indoor air. A carbonate-bicarbonate coated filter was found to be inefficient for collection of nitrous acid. An amino type, weak...
  6. Tob. Reporter, 1992, 119-7, 52, Tob. Sci, 1992, 36, p. 40-2, ISSN.0361-5693

    Comparing six models of various complexity for calculating leaf area from measurements of leaf width and length

    MAW B.W.; MULLINIX B.
    University of Georgia, Dept. of Agricultural Engineering, Tifton, GA, USA
    Where there is a need to calculate the leaf area of tobacco, rather than measure it, leaf length and maximum leaf width are convenient input parameters for a mathematical model. Previous publications have proposed a simple relationship between length...
  7. Tob. Reporter, 1991, 118-2, p. 11-9, ISSN.0361-5693

    Development of a theoretical model to predict the efficiency of flavor adsorption for tobacco cut-filler

    NAKANISHI Y.
    Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan.
    Historically, processes for the application of volatile flavors to tobacco cut-filler materials has depended solely on an adsorption process. Results from the author's study, employing both theoretical and empirical approaches, have indicated that...