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15 results

  1. Tob. Reporter, 1992, 119-1, p. 61-2, Tob. Sci, 1992, 36, p. 6-7. ISSN.0082-4623

    Evaluation of an enzyme-linked immunosorbent assay for Phytophthora parasitica var. nicotianae in tobacco

    CSINOS A.S.; MILLER S.
    University of Georgia, Dept. of Plant Pathology, Coastal Plain Experimental Station, Tifton, GA, USA
    Diseased tobacco (Nicotiana tabacum L.) samples collected from a black shank nursery or commercial fields in 1988 and 1989 were used to compare enzyme-linked immunosorbent assay (ELISA) Phytophthora kits to standard culture plating identification ...
  2. Tob. Reporter, 1992, 119-10, p. 60-3, Tob. Sci, 1992, 36, p. 49-52, ISSN.0361-5693

    Effect of MH application time on methanol-soluble and insoluble residues in flue-cured tobacco

    SHEETS J.; MEYER S.A.; SELTMANN H.
    North Carolina State University, Dept. of Toxicology, Raleigh, NC, USA
    Field experiments were conducted in 1983 and 1986 to determine the relationships among sucker control, level of methanol-soluble and methanol-insoluble MH, and the time of day that MH was applied. Residues for both fractions were highest from applications ...
  3. Tob. Reporter, 1992, 119-12, p. 55-8. Tob. Sci, 1992, 36, p. 57-60, ISSN.0361-5693

    Effects of nitrogen source and soil acidity on nitrogen use efficiency and growth of flue-cured tobacco

    CAO Z.H.; MINER G.S.; WOLLUM A.G.
    Inst. Soil Sci. Acad. Sinica., Executive Deputy Dir., Nanjing, China.
    Yield and quality of flue-cured tobacco (Nicotiana tabacum L.) are often reduced by(NH4)2.SO4 on acid soils. Urea is a less acid-forming Source of ammonium than(NH4)2.SO4 and may be a better source of plant nitrogen than(NH4)2.SO4 under acid soil ...
  4. Tob. Reporter, 1992, 119-2.,Tob. Sci, 1992, 36, p. 16-20. ISSN.0361-5693

    A durable tobacco-like calibration sample for leaf particle size measurement apparatus

    McCALL F.C., Jr.; ABRAMS C.F., Jr.
    North Carolina State University, Dept. of Biological and Agricultural Engineering, Raleigh, NC, USA
    A durable tobacco-like sample was developed as a means to detect and quantify differences in the measurement, by degradation sizer testing, of particle size distribution of threshed tobacco samples. The calibration sample was constructed of 40-pound kraft ...
  5. Tob. Reporter, 1992, 119-4, p. 74-7, Tob. Sci, 1992, 36, p. 26-9, ISSN.0361-5693

    Activated carbon reduces crop injury from misapplications of flumetralin and pendimethalin on flue-cured tobacco seedbeds

    YELVERTON F.H.; PEEDIN G.F.; WORSHAM A.D.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, USA
    Seedbed experiments were conducted in 1988 and 1989 at four locations to evaluate activated carbon as a means of reducing the phytotoxic effects of flumetralin and pendimethalin to tobacco seedlings. Three herbicide/carbon treatments were used: 1) ...
  6. Tob. Reporter, 1992, 119-6, p. 46-9. Tob. Sci, 1992, 36, p. 36-9, ISSN.0361-5693

    Time and method of pesticide tank mix application for pest management and production of flue-cured tobacco

    JOHNSON A.W.; CSINOS A.S.; GOLDEN A.M.
    USDA-ARS, Coastal Plain Station, Tifton, GA, USA
    Tank mixes of a fungicide (metalaxyl) and a nematicide (fenamiphos) with herbicides (pebulate and isopropalin) and an insecticide (chlorpyrifos) were applied by soil incorporation or irrigation to control the black shank-root knot complex and weeds on ...
  7. 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 ...