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32 results

  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. 111, APOST10

    Researches on the recovery for agricultural purposes, including tobacco cultivation, of areas where cinders from thermal power plants are dumped

    PAUNESCU A.D.; POPESCU I.I.; PAUNESCU M.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    This study was concerned with the recovery for agricultural purposes of land presently used to dump cinders from power plants or waste from mines.The researches were conducted in an experimental field set on cinders dumped from the thermoelectric...
  3. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 83, AP34

    Research concerning the use of the cultures 'in vitro' for the creation of new tobacco genotypes

    PAUNESCU A.D.; CIUPERCA A.; PAUNESCU M.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    Using only classical breeding methods, many of the numerous objectives included in the "Programme of tobacco research in Rumania" could not be achieved and on the other hand, with the help of the up-to-date " in vitro " methods, the performance of...
  4. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 93, A5

    Influence of the combined action of fertilizers, nutrition spaces and topping, on the yield and quality of Oriental tobacco

    PAUNESCU A.D.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The experiment involved 12 variants, randomized in 4 replications, arranged in multifloor linear blocks design using the sub-divided plots, on an alluvial, sandy-clay soil. The three factors of the experiment had the following graduations:- factor A...
  5. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP19

    The role of the bacterial rhizosphere in the limitation of the development of the pathogenic micromycetes of the roots of the tobacco plants

    PAUNESCU M.; PAUNESCU A.D.; STEFANIC G.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The rhizosphere has a special position in soil biology, due to specific interactions between soil microorganisms and tobacco plants. During their growth tobacco plants compete with soil microorganisms for nutrition. However relations between plants...
  6. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST07 (adjourned)

    Studies on the behaviour of the Rumanian Virginia cultivars under attack from TMV and PVY

    PATRASCU M.; PAUNESCU A.D.; CIRCINI M.; CIUPERCA A.; BADICA S.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    In Rumania, Virginia tobacco is grown on approximately 40 % of the total acreage grown with tobacco. The fields grown with Virginia tobacco are located on sandy, leaching soils in the south and the north-west of the country and also on smaller...
  7. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST08 (adjourned)

    Transfer of the resistance to TSWV from Nicotiana alata to some tobacco cultivars, using the in vitro culture technique

    PATRASCU M.; PAUNESCU A.D.; CIUPERCA A.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    In order to transfer the dominant gene N , responsible for the resistance to TSWV, from Nicotiana alata to some Virginia tobacco cultivars, interspecific hybridations were performed followed by the "in vitro" culture of the immature embryos...
  8. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST09

    Researches concerning the influence of different levels of fertilization and moisture on certain vegetation characteristics of Oriental tobacco

    PAUNESCU A.D.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    In order to establish the influence of different levels of fertilization and moisture upon certain vegetation characteristics, chemical composition and combustibility of Oriental tobacco, researches were conducted in a greenhouse using Mitscherlich...
  9. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST10

    The influence of mixed and organic fertilization on the soil biology, yield and quality of Oriental tobacco

    PAUNESCU A.D.; STEFANIC G.; PAUNESCU M.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    Experimentations were conducted at the Experimental Field for Tobacco - Voicesti, Vilcea, in a crop rotation of long duration with Oriental tobacco (1982-1994), the fertilization being organic, mineral and mixed. From 1982-1985, the tests used...
  10. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST12

    New researches regarding the resistance of the Oriental tobacco to the attack of the micromycete Chalara elegans

    PAUNESCU M.; PAUNESCU A.D.; STEFANIC G.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The resistance of Oriental tobacco to black root rot caused by the micromycete Chalara elegans (Nag Raj et Kendrick) has represented, since 1990, a major objective of tobacco breeding in Rumania. Research was conducted in the laboratory, in the...