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  1. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 02

    Evaluation of growth, yield, grade and chloride content of flue-cured tobacco fertilized with various rates of KCl and K-Mag as potassium sources

    MOORE J.M.(1); BAFALLUY R.(2); LAHUE S.S.(1); TROXELL C.E.(1)
    (1) University of Georgia, Tifton, GA, USA; (2) SQM Brazil, Barueri - SP, Brazil
    Fertilizer laws exist in the U. S. which require manufacturers of fertilizer stipulated as "tobacco grade fertilizer" to limit the chloride (Cl) content to not more than two percent by weight. These regulations were put in place based on research...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 03

    Lowering TSNAs through nitrite reductase activity

    DAVENPORT S.E.; FORSYTH K.; TULLY L.; LISTER R.; LE LAY P.; MAUNDERS M.; SANCHEZ-TAMBURRINO J.P.
    Advanced Technologies Ltd., Cambridge, UK (holding of British American Tobacco Ltd.)
    Tobacco specific nitrosamines (TSNAs) are compounds in tobacco that have been shown to be carcinogenic. TSNAs are formed by the nitrosation of tobacco alkaloids with the main nitrosating agent believed to be nitrite. High levels of nitrate...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 04

    TSNA accumulation in two burley tobacco cultivars

    JACK A.M.(1); FISHER C.R.(1); SCHOERGENDORFER A.(1); FANNIN F.F.(1); DANEHOWER D.(2); BUSH L.P.(1)
    (1) University of Kentucky, Lexington, KY, USA; (2) North Carolina State University, Raleigh, NC, USA
    Differences in TSNA accumulation between burley genotypes can often be attributed to differences in nicotine conversion and/or differences in amount of total alkaloids. However, several researchers have observed differences in TSNAs between certain...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 05

    Reduction of nornicotine in experimental burley tobaccos and impact on N-nitrosonornicotine in lamina and smoke

    HAYES A.(1); LUSSO M.(1); HAJALIGOL M.(1); LEWIS R.(2)
    (1) Altria Client Services Inc, Richmond, VA, USA; (2) North Carolina State University, Raleigh, NC, USA
    The levels and stability of nornicotine in burley tobaccos have been of considerable interest because of nornicotine's role as a primary precursor in the accumulation of N-nitrosonornicotine (NNN) during and after curing. Efforts to screen foundation...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 09

    Using direct PCR method of hyphae for ISSR Marker and ITS sequence study of Phytophthora nicotianae

    LEI Liping(1); QIN Xiyun(1); WAN Anyun(1); CHAI Jiarong(1); XIA Zhenyuan(1); CHEN Hairu(2); YANG Genhua(2)
    (1) Yunnan Academy of Tobacco Sciences, Yuxi, Yunnan Province 653100, P.R China; (2) Phytopathology Laboratory of Yunnan Province, Yunnan Agricultural University, Kunming 650201, P.R. China
    To investigate the diversity of Phytophthora nicotianae in the Yunnan Province of China, the direct PCR method was used to compare the differences in inter-translation space (ITS) of ribosomal DNA of Phytophthora nicotianae between the isolates from...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 10

    Natural chestnut tannins to enhance tobacco nutrition and resistance to nematodes

    MIELE S.(1); BARGIACCHI E.(2); MILLI G.(3)
    (1) University of Pisa, Dip. Agronomia e Gestione dell’Agroecosistema, Pisa, Italy; (2) Consortium INSTM, Firenze, Italy; (3) Fattoria Autonoma Tabacchi, Città di Castello, Perugia, Italy
    There is an increasing interest toward non-chemical inputs for tobacco, and the other major crops, in order to minimize leaf residues, environmental hazard, and crop footprint and improve manpower safety. Increasing costs of phosphate fertilizers,...
  10. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 12

    Bacteriophage can reduce Ralstonia solanacearum induced stem necrosis in tobacco

    FORTNUM B.A.; PETERSON P.D.
    Clemson University, Dept of Entomology Soils and Plant Sciences, Pee Dee REC, Florence, SC, USA
    Bacterial wilt caused by Ralstonia solanacearum is an extremely damaging disease of flue-cured tobacco in the south-eastern USA and can be spread mechanically on farm machinery. Rolastonia solanacearum exhibits strong tissue-specific tropism within...