Abstract
Objective – to study basic biometrical, ecological and biological characteristics of the genus Quercus L. representatives in green plantations of Kryvyi Rih and in the arboretum of Kryvyi Rih Botanical Garden of the NAS of Uk raine.
Material and methods. Modern state of the genus Quercus species in green plantations of Kryvyi Rih and the arboretum of Kryvyi Rih Botanical Garden of the NAS of Ukraine is studied. To study the age of trees, the diameter of trunk was measured at a height of 1.3 m and their whole height. The vital state of plants was assessed by L.S. Savelieva 8-point scale (1975), drought resistance – according to S.S. Pyatnitsky 6point scale (1961), frost resistance – according to I.A. Dobrovolsky 5-point scale (1961), the intensity of blossoming and fruiting – acording to A.G. Golo vach 6-point scale (1980).
Results. The most of introduced species of the genus Quercus in the collection of Kryvyi Rih Botanical Garden of the NAS of Ukraine reach the sizes corresponding to their age. The trees have a high viability score (VIIVIII). According to the results of the analysis in the park plantations of Kryvyi Rih city, Q. robur L. trees aged from 7 to 200 years were found. The 30–40 yearsaged trees are predominating, their height is 15–18 m, a trunk diameter – 25–40 cm. The vital state of the most of plants corresponded to VII and VIII scores, but there were oaks, the index of which did not exceed V and VI scores. Plants of the genus Quercus are well developed, regularly bloom and bear fruit and are practically unaffected by pests and diseases, except for the less stable species Q. robur.
Conclusions. The genus Quercus in parks and squares of Kryvyi Rih is represented by three species and one cultivar, in the collection of Kryvyi Rih Botanical Garden of the NAS of Ukraine – 10 species and one cultivar. They have a good vital state and high decorativeness. Perspective for regional culture by complex of ecological and biological properties are following species: Q. castaneifolia C.A. Mey., Q. imbricaria Stev., Q. macranthera Fisch. et Mey. which were held in Kryvyi Rih Botanical Garden of the NAS of Ukraine for many years introductory test.
References
Geobotanicheskoe rajonirovanie Ukrainskoj SSR [Geobotanical zoning of the Ukrainian SSR], Red. A.I. Barbarich (1977), Kyiv: Nauk. dumka, 307 p.
Golovach, A.G., (1980). Derevja, kustarniki i lianі Botanicheskogo sada BIN AN SSSR [Trees, bushes and lianas of the Botanical Garden of Institute of Botany of the Academy of Sciences of the USSR]. Leningrad: Nauka, 187 p.
Dobrovolskyj, I.A. (1961), Naslidky introdukcii dejakyh dekoratyvnyh derevnyh i chagarnykovyh porid v umovah Kryvorizhzhja [Implications of the introduction of some ornamental tree and shrub breeds in conditions of Kryvorizhzhya] Ukr. botan. zhurn. [Ukr. Botan. J.], vol.18, N 1, pp. 87—90.
Ilkin, G.M. (1971), Gazoustojchivost rastenij [Gas resistance of plants]. Kyiv: Naukova dumka, 146 p.
Inventaryzacija zelenyh nasadzhen v Ukraini [Inventory of green plantations in Ukraine]. Mode access: http://epl.org.ua/pravo/inventarizacija-zelenikhnasadzhen
Kaplunenko, N.F. (1981), Introdukcija dubov na Ukraine [Introduction of oaks in Ukraine]. Kyiv: Naukova dumka, 164 p.
Kucherevkyj, V.V. and Shol, G.N. (2009), Anotovanyj spysok urbanoflory Kryvogo Rogu [Anonymity list of Urbanoflora of Kryvyi Rih]. Kryvyj Rih: Vydavnychyj dim, 71 p.
Levon, F.M. (2008), Zeleni nasadzhennja v antropogenno transformovanomu seredovyshhi: monografija [Green plantations in anthropogenically transformed environment: monograph]. Vidp. red. P.A. Moroz. Kyiv: NNC IAE, 364 p.
Menickij, Ju.L. (1984), Duby Azii [Oaks of Asia]. Leningrad: Nauka, 255 p.
Nekrasov, V.I. (1980), Aktualnye voprosy razvitija teorii akklimatizacii rastenij. [Actual questions of development of the theory of plant acclimatization]. Moscow: Nauka, 100 p.
Kazakov, V.L., Parako, I.S., Smetana, M.G. i dr. (2005), Pryrodnycha geografija Kryvbasu [The natural geography of Krivbass]. Kryvyi Rih: KDPU, 156 p.
Pjatnickij, S.S. (1961), Praktikum po lesnoj selekcii [Workshop on forest breeding] Moscow: Selhozizdat, 271 p.
Saveleva, L.S. (1975), Ustojchivost derevev i kustar nikov v zashhitnyh nasazhdenijah [Stability of trees and shrubs in protective plantations]. Moscow: Lesnaja promyshlennost, 168 p.
Solomaha, N.G., Korotkova, T.N. (2016), Sovremennoe sostojanie kollekcij vidov roda Quercus L. na GP “Mariupolskaja lesnaja nauchno-issledovatel’skaja stancija” [The current state of collections of the genus Quercus L. species at the Mariupol Forest Research Station]. Miestų želdynų formavimas, N 1(13), pp. 350—358. Moda access: http://www.krastotvarka.vhost.lt/documents/177.html
Tahtadzhjan, A.L. (1978), Floristicheskie oblasti Zemli [Floristic regions of the Earth]. Leningrad: Nauka, p. 248.
Marynych, O.M., Parhomenko, G.O., Petrenko, O.M. and Tyshhenko, P.G. (2003), Udoskonalena shema fizyko-geografichnogo rajonuvannja Ukrainy [An improved scheme of physical geographic zoning of Ukraine.]. Ukrainskyj geografichnyj zhurnal [Ukr. Geographic. J.], vyp. 1, pp. 16—21.
Fedorovskij, V.D. and Mazur, A.E. (2007), Drevesnye rastenija Krivorozhskogo botanicheskogo sada (Itogi introdukcii za 25 let) [Woody plants of the Kruvyi Rih Botanical Garden (Results of introduction for 25 years)]. Dnepropetrovsk, 256 p.
Curyk, Je.I. and Homjuk, P.G. (2005), Lisotaksacijni vymirjuvannja [Forest-valuation measurements]. Lviv: NLTU Ukrainy,187 p.
Lysyj, A.E., Ryzhenko, S.A., Kozjarin, I.P. i dr. (2007), Jekologicheskie i socialno-gigienicheskie problemy i puti ozdorovlenija krupnogo promyshlennogo regiona [Ecological and socio-hygienic problems and ways of improving a large industrial region]. Kryvyi Rih, 428 p.
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