ECONOMIC AND ORNAMENTAL VALUE OF FLORIBUNDA ROSE VARIETIES ACCORDING TO THE QUANTITATIVE PARAMETERS OF THEIR INFLORESCENCES
Abstract
The article presents the results of research on the quantitative parameters of inflorescences of different floribunda rose varieties, which differ in origin, morphological and decorative features, in the conditions of the Right Bank Forest Steppe of Ukraine. It has been established that floribunda rose varieties, for the most part, are collected in shield-shaped inflorescences with the number of 3–4 flowers in each. It was found that five of the 20 floribunda rose varieties that we studied had the highest flowering vigor score of 5 points, with an average number of inflorescences of up to 61 pieces. Another five varieties had good flowering and received 4 points. The average number of their inflorescences varied between 17–30 pieces per plant. Two points were awarded to four varieties with reduced flowering, namely: Goldelse, Cream Abundance, Henri Matisse and Lilli Marleen. Their number of inflorescences was in the range of 2–5 pcs. Thus, the results of the research showed that the varieties of the floribunda group in the vast majority have moderate and higher flowering vigor with the number of inflorescences more than 10 per plant. An ambiguous influence of the terms of cultivation on the number of inflorescences in different floribunda rose varieties was revealed. Since annual plants do not yet have the appropriate growth power, their number of inflorescences is the lowest. In most varieties, the maximum number of inflorescences was in four-year-old plants, however, the rate of growth of the number of inflorescences by year in different genotypes differed significantly. The greatest increase was recorded in two-year-old plants of Pomponella and Lovely Green varieties, which almost doubled the number of inflorescences compared to the previous growing season, while in subsequent years the increase was significantly less. In Westpoint and Bella Rosa varieties, a uniform annual increase in the number of inflorescences by 20–30% was observed. The varieties Santa Monika, Goldelse, Cream Abundance, Henri Matisse and Lilli Marleen had a stable low number of inflorescences, which did not change significantly in plants of different ages. Thus, in some varieties, a sharp increase in the number of inflorescences was recorded, while in others it was uniform throughout the entire period of their cultivation. This may be due to different degrees of resistance of varieties to negative climatic factors and individual characteristics of their growth and development.
References
2. Bank, V. S. & Moroz, E. K. (2002). Introduktsiya roz grupp grandiflora i floribunda v parke «Sofievka» NAN Ukrainyi i perspektivyi ispolzovaniya ih v ozelenenii [Introduction of grandiflora and floribunda roses in the Sofiyivka park of the NAS of Ukraine and the prospects for their use in landscaping]. Botanicheskie sadyi: sostoyanie i perspektivyi sohraneniya, izucheniya, ispolzovaniya botanicheskogo raznoobraziya rastitelnogo mira: Tezisyi dokladov nauchnoy konferentsii, 14–16 (in Russian).
3. Belendez, K. Fabulous Floribunda Roses. (2016). Rose Ecstasy. Santa Clarita Valley Rose Society, 25(1).
4. Buidin, Yu. V. (2016). Otsiniuvannia deiakykh hospodarsko-biolohichnykh oznak introdukovanykh sortiv rodu Astilbe Buch.-Ham ex D.Don. [Evaluation of some economic and biological characteristics of introduced varieties of the genus Astilbe Buch.-Ham ex D.Don]. Sortovivchennya ta ohorona prav na sorti roslin, 1 (30), 23–30 (in Ukrainian).
5. Byilov, V. N. (1978). Osnovyi sravnitelnoy sortootsenki dekorativnyih rasteniy [Fundamentals of comparative variety evaluation of ornamental plants]. Introduktsiya i selektsiya tsvetochno-dekorativnyih rasteniy. Moskva, Nauka, 7–32 (in Russian).
6. Bylov, V. N., Mihajlov, N. L. & Surina, E. I. (1988). Rozyi. Itogi introduktsii [Roses. Results of the introduction]. Moskva, Nauka, 440 (in Russian).
7. Chelariu, E. L., Draghia, L., Brіnzа, M., Cojocariu, M., Avarvarei, B. V. & Paraschiv, N. L. (2019). Research regarding the behaviour of some rose varieties from floribunda group in cropping conditions from Iasi, Romania. Scientific Papers. Series B, Horticulture, 63(1), 453–458.
8. Denysko, I. L. (2016). Troiandy patio: Bioloho-ekolohichni osoblyvosti, introduktsiia, perspektyvy vykorystannia u Pravoberezhnomu Lisostepu Ukrainy [Patio roses. Biological and ecological features, introduction, prospects of use in the Right Bank Forest Steppe of Ukraine]. Kiyiv, Palyvoda A. V., 232 (in Ukrainian).
9. Glotova, V. D., Knjazkova, A. Ju., Kolomnikova, M. V. & Chesnokov, N. N. (2020). Ispolzovanie roz v landshaftnom dizayne [The use of roses in landscape design]. Nauka i obrazovanie. Nauchnyiy retsenziruemyiy elektronnyiy zhurnal, 3(4) (in Russian).
10. Gorodnyaya, E. V. (2017). Ispolzovanie sortov i vidov roz v ozelenenii v usloviyah predgornoy zonyi Kryima [The use of varieties and types of roses in landscaping in the conditions of the foothills of the Crimea]. Biologiya rasteniy i sadovodstvo: teoriya, innovatsii, 182–185 (in Russian).
11. Graves, H. A. & Hoag, D. G. (1956). Roses: You can grow them in North Dakota. NDSU Libraries, Nord Dakota Agricultural College, 118, 6.
12. Gudin, S. (2000). Rose: genetics and breeding, Plant Breed. Rev. New York, 17, 159–190.
13. Hrechanyk, R. M., Melnyk, Yu. A. & Synytsia, A. V. (2004). Vykorystannia troiand v ozelenenni ta dekoratyvnomu kvitnykarstvi [The use of roses in landscaping and decorative floriculture]. Naukovyi visnyk NLTU, 14 (4), 18–24 (in Ukrainian).
14. Karpov, A. A. (2007). Rozyi. Vyiraschivanie. Dizayn. Prodazha [Roses. Growing. Design. Sale.]. Rostov, Feniks, 4, 160 (in Russian).
15. Klimenko, Z. K. (2017). Osobennosti kultivirovaniya roz floribunda v usloviyah Yuzhnogo berega Kryima [Features of the cultivation of floribunda roses in the conditions of the southern coast of Crimea]. Byulleten GNBS, 125, 136–140 (in Russian).
16. Klimenko, Z. K. & Rubtsova, E. L. (1989). Rozyi (introdutsirovannyie i kultiviruemyie na Ukraine) [Roses (introduced and cultivated in Ukraine)]. Naukova dumka, 26 (in Ukrainian).
17. Kole, C. (2011). Wild Crop Relatives: Genomic and Breeding Resources Plantation and Ornamental Crops. Berlin, Heidelberg, Springer-Verlag, 303.
18. Kyienko, Z. B., Matus, V. M., Pavliuk, N. B. (2016). Metodyka provedennia ekspertyzy sortiv roslyn hrupy dekoratyvnykh, likarskykh ta efirooliinykh, lisovykh na prydatnist do poshyrennia v Ukraini [Methodology for examination of varieties of decorative, medicinal and essential oil, forest plant varieties for suitability for distribution in Ukraine]. M-vo ahrar. polityky ta prodovolstva Ukrainy, Ukr. in-t ekspertyzy sortiv roslyn. Vinnytsia, Nilan LTD, 2, 130 (in Ukrainian).
19. Lempitskiy, L. P. (1968). Rozyi [Roses]. Kiev, Urozhay, 103 (in Russian).
20. Metodyka provedennia ekspertyzy sortiv roslyn hrupy dekoratyvnykh na vidminnist, odnoridnist i stabilnist [Methodology for examination of plant varieties of the ornamental group for distinction, homogeneity and stability]. (2016) M-vo ahrar. polityky ta prodovolstva Ukrainy, Ukr. in-t ekspertyzy sortiv roslyn. Vinnytsia, Nilan LTD, 2, 1130 (in Ukrainian).
21. Nomerov, B. A. (1965) Kultura roz v sredney polose SSSR [Rose culture in the central zone of the USSR]. Moskva, 221 (in Russian).
22. Pankratova, G. M. (2012). Sadovyie rozyi. Bolshaya entsiklopediya [Garden roses. Big Encyclopedia]. Moskva, Eksmo, 272 (in Russian).
23. Rubtsova, O. L. (2009). Rid Rosa L. v Ukraini: henofond, istoriia, napriamy doslidzhen, dosiahnennia ta perspektyvy [The genus Rosa L. in Ukraine: gene pool, history, directions of research, achievements and prospects]: monohrafiia. Kyiv, Feniks, 375 (in Ukrainian).
24. Rubtsova, O. L., Chyzhankova, V. I. & Boiko, R. V. (2015). Selektsiia troiand: istoriia, dosiahnennia, suchasna stratehiia [Rose breeding: history, achievements, modern strategy]. Introduktsiia roslyn, 1, 69-75 (in Ukrainian).
25. Titchmarsh, A. (2011). Rozyi [Roses]. Sankt Peterburg, Petroglif, 64 (in Russian).
26. Tkachenko, V. M., Andriushchenko, A. V. & Pilkevych, A. V. (2014). Metodyka provedennia kvalifikatsiinoi ekspertyzy sortiv kvitkovo-dekoratyvnykh, efirooliinykh, likarskykh ta lisovykh roslyn na prydatnist do poshyrennia v Ukraini [Methodology for the qualification examination of varieties of flower and decorative, essential oil, medicinal and forest plants for suitability for distribution in Ukraine]. Kyiv, 2, 132 (in Ukrainian).
27. Tkachuk, O. O. & Nuzhyna, N. V. (2013). Osoblyvosti anatomichnoi budovy novoutvoren na koreniakh stariiuchykh troiand [Peculiarities of the anatomical structure of neoplasms on the roots of aging roses]. Chornomorskyi botanichnyi zhurnal, 9(2), 175–179 (in Ukrainian).
28. Vlasenko, E. (2012). Vyiraschivaem lyubimyie rozyi [Growing your favorite roses]. Moskva, Eksmo, 192 (in Russian).
29. Wylie, A. P. (1954). The history of garden roses, part I. J. Royal Horticultural Society, 79, 555–574.
30. Zonova, V. (2021). Rozyi. Luchshie sorta [Roses. The best varieties.]. Litres. Access mode: https://play.google. com/books/reader?id=PknUD wAAQBAJ&hl= uk&lr=&printsec=frontcover (in Russian).
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