Search Results

7 results

  1. 48th TWC, Tob. Work. Conf., 2018, abstr. 41

    Search for varieties with useful resistance to Black Shank under Georgia growing conditions

    SHEALEY J.(1); DAWSON J.(1); TAYLOR J.(1); BEASLEY E.(1); BARNES T.(1); ANDERSON H.H.(1); VON WALDNER D.M.(1); MOORE J.M.(1); BERTRAND P.F.(1); LEWIS R.S.(2)
    (1) University of Georgia, Statenville GA USA; (2) North Carolina State University, Raleigh NC USA
    As new varieties of black shank resistant tobacco are brought to the market extension agents in Georgia annually conduct variety trials across the state to measure performance and Florida 301 resistance levels throughout our tobacco producing region....
  2. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 28

    Identification of the genes underlying the yellow Burley phenotype in Nicotiana tabacum

    LEWIS R.S.(1); DRAKE-STOWE K.(1); HUMPHRY M.E.(2); EDWARDS K.D.(2); KERNODLE S.P.(1)
    (1) North Carolina State University, Crop Science Department, Raleigh, NC, U.S.A.; (2) British American Tobacco Company, Cambridge, U.K.
    The primary distinguishing characteristic of cultivars of the Burley tobacco market class is their high degree of chlorophyll deficiency, particularly on stems, stalks, and midveins, which becomes accentuated during plant maturation. This ‘yellow...
  3. 47th TWC, Tob. Work. Conf., 2016, abstr. 30

    Generation, evaluation, and use of tobacco lines nearly isogenic for QTLS affecting black shank resistance

    MA J.(1); LEWIS R.S.(1); EDWARDS K.(2); HUMPHRY M.(2)
    (1) North Carolina State University, Raleigh NC USA; (2) British American Tobacco, United Kingdom
    The black shank disease, caused by Phytophthora nicotianae, is typically the most economically-important disease affecting tobacco production in the United States. Host plant resistance is the most effective and cost-efficient means of control if the...
  4. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 05

    Working to improve black shank control in flue-cured tobacco

    BERTRAND P.F.(1); MOORE J.M.(1); SHEW D.(2); LEWIS R.S.2); VON WALDNER M.(1)
    (1) University of Georgia, Tifton, GA, U.S.A.; (2) North Carolina State University, Raleigh, NC, U.S.A.
    Black shank is a concern for farmers growing tobacco on land infested with Phytophthora nicotianae. The first superior Php gene variety (NC-71) was introduced in 1995. The Php gene confers complete resistance to the wild type of P. nicotianae (race...