| Authors |
Elena G. Khudonogova, Doctor of biological sciences, associate professor, head of the sub-department of botany, fruit growing and landscape architecture, Irkutsk State Agrarian University named after A.A. Ezhevsky (Molodezhny settlement, Irkutsk district, Irkutsk region, Russia), E-mail: doky2015@yandex.ru
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| Abstract |
Background. For Irkutsk landscaping, mainly ornamental plants of the local flora are used, less often highly decorative introduced species – Acer ginnala, Berberis amurensis, Populus alba and etc. The introduction is considered successful if the plants do not lose their decorative properties, adapt to local conditions, go through all stages of ontogenesis, and form fruits and seeds. The purpose of the research is to determine the quality of seeds of woody-shrub introducents in the conditions of Irkutsk.
Materials and methods. The object of the study was 40 woody-shrub introduced species, including a number of representatives of the aboriginal flora. The quality of the seeds was determined by the weight of 1000 seeds and their germination.
Results. Wood-shrub introduced species, depending on the depth of the seed dormancy, were divided into three groups. The first group includes plants in which there is no dormancy or short dormancy, the seeds of these species do not need stratification. The second group includes plants whose seeds are in a state of rather long intermediate physiological dormancy and require cold stratification. The third group includes plants whose seeds may not germinate for several years, as a rule, the seeds of these plants are in a state of deep physiological or morphophysiological dormancy. Multistage stratification is recommended for their germination.
Conclusions. The mass of 1000 seeds ranges from hundredths of a gram to two or more hundredths. Seeds of Acer ginnala, Dasiphora fruticosa, Euonymus nanus, Thuja occidentalis, Ulmus laevis have a waterproof, dense shell and germinate faster after scarification. Cold stratification is recommended for seeds of Berberis sp., Lonicera tatarica, Malus pallasiana, Phеllodendron amurense, Physocarpus opulifolius, Prunus virginiana, Swida alba, Tilia cordata, Viburnum burejaeticum, V. lantana. For seeds of Acer negundo, Cotoneaster lucidus, Euonymus sp., Sorbus sibirica with a long-term rest period, multi-stage stratification is recommended.
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| References |
1. Asalkhanova O.N., Vin'kovskaya O.P. Large arboreal rosaceae (Rosaceae Juss.) on the territory of the Irkutsk region: diversity, distribution and state of knowledge. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2019;92:89–100. (In Russ.)
2. Vin'kovskaya O.P. Florogenetic foundations of Irkutsk gardening and its environs. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2011;44:47–58. (In Russ.)
3. Deloverov A.T., Vin'kovskaya O.P. Systematic analysis of the undergrowth flora of the Upper Angara region. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2014;60:43–58. (In Russ.)
4. Kamaletdinova S.I., Vin'kovskaya O.P. Fanophytes of Irkutsk. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2015;68:28–36. (In Russ.)
5. Zatsepina O.S., Polovinkina S.V., Skripnik G.V., Khudonogova E.G., Sharipova D.R. Influence of ecological conditions of Irkutsk on the process of shoot formation of white poplar (Populus alba L.). Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2019;92:147–155. (In Russ.)
6. Zatsepina O.S. The use of common juniper in the gardening of Irkutsk and the experience of green cuttings of conifers. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2011;44-3:81–84. (In Russ.)
7. Sharipova D.R., Polovinkina S.V. A study of the linear annual growth of white poplar in the conditions of the city of Irkutsk. Nauchnye issledovaniya studentov v reshenii aktual'nykh problem APK: materialy Vseros. stud. nauch.-prakt. konf. = Scientific research of students in solving urgent problems of the agro-industrial complex: proceedings of the All-Russian student scientific and practical conference. Irkutsk: Irkutskiy GAU, 2018:50–56. (In Russ.)
8. Khudonogova E.G. Resources of raw materials for medicinal tea plants of the Western Baikal region. Sibirskiy ekologicheskiy zhurnal = Siberian ecological journal. 2004; 11(6):899–905. (In Russ.)
9. Khudonogova E.G., Nikolaeva N.A., Chernigovskaya N.Yu. Raw materials of wild medicinal plants in Baikalia. Aktual'nye voprosy agrarnoy nauki = Topical issues of agricultural science. 2012;3:13–21. (In Russ.)
10. Khudonogova E., Polovinkina S., Namzalov B.Ts.B. [et al.]. Cenopopulation dynamics of Cisbaikalia medicinal plants. E3S Web of Conferences. Ecological and Biological Well-Being of Flora and Fauna (EBWFF-2020). 2020:03012.
11. Chernakova O.V., Chudnovskaya G.V. Current state, prospects and problems in Irkutsk landscaping. Vestnik IrGSKhA = Bulletin of Irkutsk State Agrarian University. 2018; 88:97–107. (In Russ.)
12. Chudnovskaya G.V., Chernakova O.V. Assessment of the level of developmental stability of Populos alba L. by fluctuating asymmetry of leaves in Irkutsk. Sovremennye problemy okhotovedeniya: materialy nats. nauch.-prakt. konf. s mezhdunar. uchastiem v ramkakh VIII Mezhdunar. nauch.-prakt. konf., posvyashch. 85-letiyu Irkutskogo GAU «Klimat, ekologiya, sel'skoe khozyaystvo Evrazii» = Modern issues of hunting: proceedings of national scientific and practical conference with international participation within the 8th International scientific and practical conference dedicated to the 85th anniversary of Irkutsk State Agraria University “Climate, ecology, agriculture of Eurasia”. Irkutsk, 2019:218–233. (In Russ.)
13. Rytikova O.V., Rostovtseva M.V., Mazey N.G., Fatyunina (Vyal') Yu.A. Introduction of woody-shrub plants of the Rosaceae Juss family in the arboretum of the Penza Botanical Garden named after I.I. Sprygin. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Estestvennye nauki = University proceedings. Volga region. Natural sciences. 2016;1:23–34. (In Russ.)
14. Sattarov D.S., Saidov N.S. Assessment of the species composition of woody-shrub species of S. Ayni park in Dushanbe. Izvestiya Akademii nauk Respubliki Tadzhikistan. Otdelenie biologicheskikh i meditsinskikh nauk = Proceedings of the Academy of
Sciences of the Republic of Tajikistan. Department of biological and medical sciences. 2020;2:13–20. (In Russ.)
15. Berkin N.S. [et al.]. Irkutskaya oblast' (prirodnye usloviya administrativnykh rayonov) = Irkutsk region (natural conditions of administrative districts). Irkutsk: Izd-vo IGU, 1993:300. (In Russ.)
16. Kuzevanov V.Ya., Sizykh S.V. Resursy botanicheskogo sada Irkutskogo gosudarstvennogo universiteta: obrazovatel'nye, nauchnye i sotsial'no-ekologicheskie aspekty = Irkutsk State University Botanical Garden resources: educational, scientific and socioecological aspects. Irkutsk, 2005:244. (In Russ.)
17. Sedaeva M.I., Vyatkina E.I., Lobanov A.I., Varaksin G.S. The quality of seeds of woody introduced plants growing in the south of Central Siberia. Vestnik KrasGAU = Bulletin of Krasnoyarsk State Agrarian University. 2008;4:141–144. (In Russ.)
18. Methods for determining germination according to State Standart 12038–84. Studencheskaya biblioteka onlayn = Student online library. (In Russ.). Available at: https://
studbooks.net/1064987/agropromyshlennost/metody_opredeleniya_vshozhesti_gost_12038 (accessed 20.04.2018).
19. Nikolaeva M.G., Razumova M.V., Gladkova V.N. Spravochnik po prorashchivaniyu pokoyashchikhsya semyan = Dormant seed germination guide. Leningrad: Nauka, 1985:348. (In Russ.)
20. Nikolaeva M.G., Obrucheva N.V. (ed.). Fiziologiya i biokhimiya pokoya i prorastaniya semyan: [per. s angl.] = Physiology and biochemistry of dormancy and germination of seeds: [translated from English]. Moscow: Kolos, 1982:495. (In Russ.)
21. Dospekhov B.A. Metodika polevogo opyta (s osnovami statisticheskoy obrabotki rezul'tatov issledovaniya) = Field experiment methodology (with the basics of statistical processing of research results). Moscow: Agropromizdat, 1985:351. (In Russ.)
22. Komarov V.P. Vvedenie k floram Kitaya i Mongolii = Introduction to the floras of China and Mongolia. Moscow; Leningrad, 1947;2:159–342. (In Russ.)
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