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  1. Bull. Spec. CORESTA Congress, Yokohama, 1996, p. 144, APOST6

    The characteristics of the Virginia tobacco grown in Roumania

    CIRNICI M.; PATRASCU M.; PAUNESCU A.D.; BADICA S.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Virginia tobacco is grown in Roumania since 1937 when the first driers were also built. In recent years, a lot of work has been dedicated to breeding Virginia tobacco in Roumania, which led to the development and use in cultivation of a large number of ...
  2. Bull. Spec. CORESTA Symposium, Kallithea, 1990, p. 138, A29, ISSN.0525-6240

    Investigation of the genetic variability induced in tobacco by experimental androgenesis

    PATRASCU M.
    Central Research Station for Tobacco Culture, Bucharest, Romania.
    The in-vitro culture of anthers has made it possible to obtain genetic variability in haploids, i.e. dihaploid lines derived from the same anther donor source. In Virginia-type tobacco, three intra-species hybrid combinations in the first generation were ...
  3. Bull. Spec. CORESTA Congress, Guangzhou 1988, p. 133, P-6

    Utilization of the cultures in vitro in order to obtain tobacco genotypes with resistance to TSWV (Lycopersicum virus 3)

    PATRASCU M.; CIUPERCA A.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Immature embryos, of 4-6 days, originated in pollination of some cultivars of tobacco with Nicotiana alata which has factors of genetical resistance to Lycopersicum virus 3 (LV-3), were cultivated. Through repeated tests, the best medium of culture proved ...
  4. Bull. Spec. CORESTA Congress, Vienna, 1984, p. 96, A22, ISSN.0525-6240

    New tobacco genotypes obtained through in vitro manipulation of microspores

    PATRASCU M.; IOAN E.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Genotypes with new genetic combinations were obtained by using "in vitro"cultures of microspores derived from inter- and intraspecific hybrids in F1 and F2. Dihaploid isogenic lines with superior production and quality characteristics are used ...
  5. Bull. Spec. CORESTA Symposium, Winston-Salem, 1982, p. 79, AP3, ISSN.0525-6240

    Dihaploid-type isogenous Lines and their use in tobacco quality improvement

    PATRASCU M.; EUGEN I.; DECULESCU G.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Isogenous lines were obtained by doubling the chromosomal set of androgenetic haploids achieved byïn vitro"anther culture derived from inter- and intraspecific Nicotiana hybrids that were in the F1-F4 generation. Dihaploid genomes that include ...
  6. Bull. Spec. CORESTA Congress, Manila, 1980, p. 103, AP09, ISSN.0525-6240

    Investigations relative to the preservation of the genetical information in an isogenetic line obtained from a tobacco androgenetic haploid and its cytogenetics

    PATRASCU M.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    Cytogenetic investigations were carried out on a tobacco isogenetic line (Molotava 72 x Nicotiana glauca F5) x Ghimpati RP 55 F3, obtained from an androgenetic haploid and compared with the hybrid from which were derived the haploid and the parents of the ...