Help

Search Results

85 results

  1. 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...
  2. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST05

    Influence of physiologically active substances on the germination of tobacco seed

    DIMA A.; SIMA V.; MILITARU D.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    In the frame of a research on seedling production, the influence of physiologically active solutions on the germination of tobacco seed was investigated. The experiments were conducted using Baragan 132, a broad-leaf cultivar specific to our country....
  3. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, POST06

    Assessment and implementation of the float system in Rumania - medium used in the trays

    DIMA A.; SIMA V.; MILITARU D.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The first tests of float systems in Rumania were conducted as recently as 1997. Three year experiments were conducted to assess the value of the float system and determine an optimum formula for the nutritive medium. The variants were: I. Seedlings...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  10. Bull. Spec. CORESTA Congress, Brighton, 1998, p. 103, APOST2

    Researches concerning the production of tobacco seedling in Float system using trays with cells

    DIMA A.; CIRNICI M.; CIUPERCA A.; MILITARU D.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    During 1996-1997 a programme for obtaining tobacco seedlings by unconventional methods was conducted in Romania. The tests were made in three experimental fields of the Central Research Station for Tobacco Growing and Industrialization in Bucharest,...