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  1. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 107, APOST6 (adjourned)

    Estimation of the state of nitrogen nourishment of tobacco using the N-tester

    KOWALCZYK-JUSKO A.; KOSCIK B.
    University of Agriculture, Lublin - Institute of Agricultural Sciences, Zamosc, Poland.
    The purpose of this work, based on a three years of field experiment, was to inspect whether it is possible to use a chlorophyll meter in fixing the nitrogen doses used in growing flue-cured tobacco. The relationship between the capacity of nitrogen...
  2. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 127, P7

    Characterization of PVY strains occurring in Poland and Hungary, and comparisons with foreign strains

    DOROSZEWSKA T.; FISHER C.R.
    Institute of Soil Science and Plant Cultivation, Dept. of Special Crops, Pulawy, Poland.
    The necrotic strain of Potato virus Y (PVY), causing brown venial necrosis of tobacco is an economically important in Poland, but even more serious in Hungary. Other important crops infected include potatoes, which is most likely the major source of...
  3. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 79, AP30

    Effect of sixteen different sources of cytoplasmic male sterility (cms) on some traits of a flue-cured tobacco cultivar

    BERBEC A.
    Institute of Soil Science and Plant Cultivation, Dept. of Special Crops, Pulawy, Poland.
    Cytoplasms of 15 wild Nicotianae and a male sterile mutant cytoplasm from Nicotiana tabacum were bred into the genome of a standard Polish flue-cured cultivar Wislica. The sixteen iso-genomic alloplasmics were compared for the expression of male...