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8 results

  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 22.8 ...
  3. 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 using ...
  4. 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 and ...