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130 results

  1. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 03

    The influence of soil compaction and calcium on the uptake of phosphate for flue-cured tobacco

    DREYER J.G.; CLAASSENS A.S.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The following problem have lead to this research project: The high application rate of phosphate by the tobacco farmer in the Lowveld and the low phosphorus content that where obtained in the leaves. Phosphates in the leaf correlate with leaf ripening ...
  2. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 04

    Phosphate uptake of flue-cured tobacco on red soils with high phosphate sorption

    JANSEN A.
    ARC, Agricultural Research Council - Institute for Industrial Crops, Rustenburg, South Africa
    Red soils are known for their high phosphate sorption. Although the red soils of the Institute for Industrial Crops have a history of heavy fertilization, the phosphate content of tobacco grown on them remains relatively low. The reason is that the ...
  3. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 05

    Phosphorus fertilization impact on the yield and heavy metal concentration of tobacco variety KS82

    MATSI TH.; STROUTHOPOULOS G.; BARBAYIANNIS N.; TSOTSOLIS N.; LAZARIDOU TH.
    Aristotle University of Thessaloniki, Soil Science Laboratory, Thessaloniki, Greece.
    Phosphorus fertilization can contribute to the enrichment of soil with heavy metals, especially Cd, and to increase heavy metals content in tobacco. The objectives of this study were to evaluate the impact of phosphorus fertilization on heavy metals ...
  4. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 06

    Monitoring and minimizing heavy metal contents in tobacco: first results of a survey on Verona's Virginia Bright tobacco

    MIELE S.; OLIVIERI O.; BARGIACCHI E.
    University of Pisa, Dpt of Agronomy and Agroecosystem Management (DAGA), Pisa, Italy
    A research network funded by E.U. on Tobacco Research Fund aimed at investigating heavy metal contents in European tobacco. The results of the survey carried out by Tabacchicoltori Associati Veneti, one of the largest European Virginia Bright producer, ...
  5. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 07

    Effects of lead and its sites of accumulation in different tobacco varieties in vitro exposed to lead

    DEL PIANO L.; ABET M.; SORRENTINO C.; CAFIERO G.; COZZOLINO E.; CUCINIELLO A.; CASTALDO-COBIANCHI R.
    Istituto Sperimentale per il Tabacco, Scafati, Italy
    A study was performed to evaluate the effects of lead and its sites of accumulation, at tissue and cell level, in tobacco plantlets in vitro exposed to the heavy metal and to reveal possible differences in immobilization depending on variety and/or type ...
  6. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 09

    Influencing the ripening process in flue-cured tobacco through exogenous application of enzymes and ripening inhibitors

    SUBRAMANIAM T.S.; SRINIVAS P.
    ITC - ILTD Division, Rajahmundry, India.
    In certain flue-cured tobacco zones of India, quick ripening is a problem, whilst, in some other zones slow ripening is a constraint. To improve the ripening pattern in different zones, field experiments were carried out using ripening agents like α ...
  7. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 10

    Research concerning the oriental tobacco rotation in a long-term design

    PAUNESCU A.D.; PAUNESCU M.; MILITARU D.C.; UDRESCU E.
    National Society Rumanian Tobacco S.A. Bucharest, Rumania.
    The scientific research and the agricultural practice proved that tobacco is a crop which tolerate itself as previous crop. Although, unlike the single-crop system, the rotation brings its benefit for obtaining high yields of tobacco, of better quality ...