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Scientific Papers Series B Horticulture

Scientific Papers Series B Horticulture

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of Chisinau, also the old parks. For carrying outthe actual researches a number of knownmethods, recommendations for clarification ofthe species composition, determination of heatand drought resistance, winter hardiness,reproductive ability, level of adaptation and theperspective of introduction have been used( . ., … 1975; .., 1981; . ., 1979; . .,1982; … 1975; . . 1980; . ., 1975).RESULTS AND DISCUSSIONSAs a result of determining and clarifying thetaxonomic composition of the genus Abies inthe Republic of Moldova we have establishedthe 23 species, 3 hybrids, 26 forms andcultivars (Table 1).Table 1. Taxonomic composition of genus Abies Mill.species in the Republic of Moldova.Species and hybridsCultivarsAurea, Columnaris,Abies alba Mill.'Pendula', 'Pyramidalis'A. amabilis (Dougl. exLoud.) Forb.-A. arizonica Merr. -A. x arnoldiana Nitz. Ioan Pavel II'Nana','Piccolo',A. balsamea (L.) Mill.'Hudsonia'PyramidalisA. borisii-regis Mattf. -A. cephalonica Loud. -A. cilicica Carr -A. concolor (Gord.)Ldl.ex Hildebr.'Argentea','Compacta','Violacea','Lowiana'A. fraseri (Pursh) Poir. -A. holophylla Maxim. -A. homolepis Sieb.etZucc.A. x insignis Carr. ex.Baillyin Rev.A. koreana Wils.A. lasiocarpa (Hook.)Nutt.A. nephrolepis Trautv.)Maxim.A. nordmanniana(Stev.) Spach--Brilliant'Brevifolia','Piccolo','Lumenetta','Silberlocke''Compacta'-'Golden Spreader','Pendula'286A. numidica De Lann.ex Carr.-A. pinsapo Boiss. 'Glauca''Glauca',A. procera Rehd.'Kelleris','Obrighoven'A. recurvata Mast. -A. sachalinensis(Schmidt) Mast.-A. sibirica Ledeb. -A. spectabilis (D.Don)Spach-A. veitchii Lindl. -A. x vilmorinii Mast. -CONCLUSIONSAs a result of determining and refinement ofthe taxonomic composition of the genus Abiesin perennial plantations of the Republic ofMoldova revealed 51 taxa. Our studiesconcerning the growth and development of thegenus Abies have shown that the soil andclimatic conditions of the Republic of Moldovaare favorable for growth of many ornamentalfir species and cultivars. The entry of 16 firspecies in the generative phase indicates totheir adaptability to new environmentalconditions. The good germinating capacity ofseeds of some fir species creates the possibilityof their mass reproduction and its following usein the ornamental gardening. On the example offir blue species was proved that the last have ahigh heat resistance with respect to the types.Thus, when creating a green plantations underconditions of increased heat should be givenpreference to the species with a blue colorationof the needles. Based on the researches wasproved the perspectivity of reproduction of firspecies and cultivars by vegetative way: lowgrowing form by cuttings and with high stemsby grafting. For landscape gardening we canrecommend 13 fir species and, their ornamentalcultivars.The highest number of forms is distinguished:A. concolor, A. koreana and A. procera. Takinginto account the global floristic reserves of thegenus (56 species, 2 subspecies, 9 hybrids, 2varieties and 625 cultivars) [ . ., . ., 1949; . . ., 1986;Den Oden P., Boom B. K. 1978; Aris G.Anders and Derek P., 2012; ], the assortment ofused in the green building of the Republic ofMoldova is comparatively poor. This basically

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