Help

Search Results

43 results

  3. Tob. Sci., 1995, 39-03, p. 9-17, ISSN. 0082-4523

    Effects of application methods and rates of maleic hydrazide on the composition of burley tobacco

    CUI Mingwu; BURTON H.R.; BUSH L.P.; SUTTON T.G.; CRAFTS-BRANDNER S.J.
    Department of Agronomy, University of Kentucky, Lexington, KY, USA; USDA, ARS, University of Kentucky, Lexington, KY, USA
    A two-year study was completed to determine the effects of application methods and rates of maleic hydrazide (MH) on the composition of burley tobacco. MH applications were made at 0.5, 1.0, 1.5, 2.0 times the recommended, labeled rate (170mg...
  4. Tob. Sci., 1995, 39-04, p. 18-22, ISSN. 0082-4523

    In vitro selection of glyphosate-tolerant tobacco callus lines and expression of herbicide tolerance in regenerated plants

    NEDKOVSKA M.
    Institute of Genetics, Department of Cell Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria
    The objectives of this study were the selection of glyphosate-tolerant callus cultures of important Bulgarian tobacco (Nicotiana tabacum L.) cultivars, regeneration of tolerant calli, confirmation of tolerance in regenerated plants, and field testing...
  5. Tob. Sci., 1995, 39-05, p. 23-29, ISSN. 0082-4523

    Effects of planting date and tobacco germplasm source on the occurrence of spotted wilt virus and on the abundance of thrips and tobacco aphids

    McPHERSON R.M.; STEPHENSON M.G.; JACKSON D.M.; CULBREATH A.K.; BERTRAND P.F.
    Department of Entomology, University of Georgia, Coastal Plain Experiment Station, Tifton, GA, USA; USDA/ARS, Coastal Plain Experiment Station, Tifton, GA, USA; USDA/ARS, Crops Research Laboratory, Oxford, NC, USA; University of Georgia, Department of Plant Pathology, Coastal Plain Experiment Station and Rural Development Center, Tifton, GA, USA
    Field experiments were conducted in Georgia during 1992 and 1993 to evaluate the impact of planting date and tobacco germplasm source on the abundance of thrips, primarily the tobacco thrips Frankliniella fusca (Hinds), and the tobacco aphid Myzus...
  6. Tob. Sci., 1995, 39-06, p. 30-37, ISSN. 0082-4523

    Impact of transplanting date and insecticide control practices on the incidence of tomato spotted wilt virus and insect pests in flue-cured tobacco

    McPHERSON R.M.; CUTBREATH A.K.; STEPHENSON M.G.; JONES D.C.
    Departments of Entomology and Pathology, University of Georgia, Coastal Plain Experiment Station, Tifton, GA, USA; USDA/ARS, Coastal Plain Experiment Station, Tifton, GA, USA; Georgia Cooperative Extension Service, Georgia Southern University, Statesboro, GA, USA
    Field studies were conducted in Georgia on flue-cured tobacco, Nicotiana tabacum L., during 1991 and 1992 to evaluate the effects of transplanting date and six insecticide control practices on the abundance of thrips, primarily Frankliniella fusca...
  7. Tob. Sci., 1995, 39-07, p. 38-42, ISSN. 0082-4523

    Hybridization between Nicotiana gossei Domin and N. tabacum L. for development of Oriental tobacco lines resistant to tobacco aphids and diseases

    PALAKARCHEVA M.; STANEVA M.; TSANOVA E.
    Bulgarian Academy of Sciences, Institute of Genetics, "Acad. D. Kostoff", Sofia, Bulgaria
    The disease- and aphid-resistant species, N. gossei (2n=36), was crossed with N. tabacum cv. Kroumovgrad 90, an oriental tobacco type. The F1 hybrids from this cross were all sterile. Regenerates of this cross were developed by in vitro methods, and...
  8. Tob. Sci., 1995, 39-08, p. 43-48, ISSN. 0082-4523

    Two techniques for assaying resistance to Phytophthora parasitica var. nicotianae on young tobacco plants

    MAIA N.; DELON R.; TRENTIN F.; BONNET P.; DUBELSKI N.; LUTZ J.P.; RICCI P.
    INRA, Antibes, France; Institut du Tabac, SEITA, Bergerac, France
    Fifteen tobacco cultivars (Nicotiana tabacum L.) exhibiting various types and levels of resistance to Phytophthora parasitica var. nicotianae (Breeda de Haan) Tucker, the causal agent of the tobacco black shank disease, were inoculated as seedlings...
  10. Tob. Sci., 1995, 39-10, p. 55-60, ISSN. 0082-4523

    Drip irrigation for tobacco plantbeds

    MAW B.W.; STEPHENSON M.G.; MULLINIX B.G.
    Biological and Agricultural Engineering Department, University of Georgia, Coastal Plain Experiment Station, Tifton, GA, USA; USDA-ARS, Statistical and Computer Services, Coastal Plain Experiment Station, Tifton, GA, USA
    Tobacco transplants were grown on outdoor plantbeds, with water being supplied through drip tubes or conventional sprinklers. Unlike sprinkler irrigation, drip irrigation provides water while plastic covers are still in place, thus saving time and...