1. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, A 02

    Study of the influence of the climate and the genetic potential in the formation of alkaloids in Burley tobacco

    SANTOS M.; MALLMANN I.; HOPPE B.; ROVEDDER J.; LORENCETTI C.; PANIZ C.; PACHECO R.; SCHMACHTENBERG C.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    It's known that in Brazil, the main factors that influence the alkaloids formation in Burley tobacco are: quantity of rain during the crop; nitrogen dosages and sources; topping heights and harvesting time. Recent studies have shown that the...
  2. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, A 26

    Tobacco seedlings quality produced under different water depths levels and nitrogen concentrations in Brazil's Southern Area

    BIESDORF A.J.; JACKISCH R.M.; DA SILVA M.L.P.; THIESEN M.L.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    The float system is a well known method to obtain the best tobacco seedlings. The seedlings absorb nutrients from a liquid fertilizer dissolved in the basin water, harmonized specially for tobacco to get uniform growth and robust seedlings. A seedbed...
  3. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, A 29

    The polypropylene non-woven cover sheet in tobacco float system: an effective alternative to minimize the associated insect fauna

    BIESDORF A.J.; KÖHLER A.; HERMES M.G.; DA SILVA M.L.P.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    The float system is a well-known method to obtain the best tobacco seedlings. The seedlings absorb nutrients from a liquid fertilizer dissolved in the basin water, harmonized specially for tobacco to get uniformly growing and robust seedlings. Pest...
  4. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, A 31

    Comparison of organic mineral fertilizer with mineral fertilizer in flue-cured tobacco in no-till, minimum-till and conventional systems in Brazil

    ROVEDDER J.; HOPPE B.; MALLMANN I.; SANTOS M.; LORENCETTI C.; PANIZ C.; PACHECO R.; SCHMACHTENBERG C.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    The No-Till (N-T) and Minimum-Till (M-T) systems are important tools to avoid erosion problems and increase the soil quality. The organic mineral fertilizer has lower concentration of salts, being more efficient, economical and ecological. It can be...
  5. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 15

    Evaluation of cover crop species in no-till tobacco production system in Brazil's southern area

    JACKISCH R.M.; DA SILVA M.L.P.; PEREIRA C.D.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    The no-till system is one of the most important technologies to minimize the soil erosion considering not only the tobacco crop but also in the off-season when the winter crops are on the growing period. A field experiment was carried out to evaluate...
  6. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 21

    Study of main factors that influence alkaloids in flue-cured tobacco in Brazil

    MALLMANN I.; HOPPE B.; SANTOS M.; ROVEDDER J.; LORENCETTI C.; PANIZ C.; PACHECO R.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    It is known that the main factors that influence the alkaloids formation in flue-cured (F.C.) tobacco in Brasil are: 1- rainy crops producing tobaccos with lower alkaloids; 2- nitrogen dosages and sources; 3- topping heights; 4- harvesting time. The...
  7. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 24

    Hybrid seed production in tobacco by using male sterile plants

    NIKOVA V.; NIKOLOV E.; IANCHEVA A.; PANDEVA R.; PETKOVA A.
    Institute of Genetics, Sofia, Bulgaria; Tobacco and Tobacco Products Institute, Plovdiv, Bulgaria; Reg. Ctre for Scientific Investig. & Prod. of Tobacco, Haskovo, Bulgaria.
    The introduction of hybrid crop varieties has enabled spectacular growth in productivity owing to hybrid vigor and increased uniformity. To produce hybrid seeds, a pollination control system is required to prevent unwanted self-pollination. New...
  8. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 31

    The influence of soil pH on two flue-cured tobacco varieties in Brazil's southern area

    JACKISCH R.M.; COLPO E.N.; DA SILVA M.L.P.
    Alliance One Brazil, R&D, Santa Cruz do Sul-RS, Brazil.
    A field experiment was developed in the State of Rio Grande do Sul - Brazil's Southern Area during the 2003/04 crop to evaluate the influence of the soil pH levels 5,5 - 6,0 and 6,5 on the leaf yield, quality, gross income and total alkaloids content...