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The Nikita Botanical Gardens ornamental plants collections biodiversity extension
... This is an experimental study of the mechanisms of resistance in a wide range of plants (Schipper, 2017;Hopton et al., 2017) in the environmental conditions of large cities. As well as long-term forecasting of urbanophytocenosis development within the framework of an ever-increasing anthropogenic load (Kopylov, 2020;Zykova et al., 2021;Chernyshenko, 2021). This is especially relevant, since the deterioration of the environmental situation in modern large cities, where, according to statistical data, more than 70% of Russians live, it has already become obvious. ...
... It is desirable to consider the complex of these parameters in the process of selecting irises for use in urban landscaping. Sources of information are both literature data (Rahimova et al., 2020;Reut and Beksheneva, 2021;Zykova et al., 2021) and own research based on the collection of irises of the laboratory of ornamental plants. In the conditions of central Russia, I. sibirica is stable in culture and is characterized by a high adaptive potential. ...
The purpose of this study is a scientifically based selection of representatives of the genera Paeonia L., Hosta L. and Iris L., promising for use in urban landscaping. The choice of research objects is determined by three criteria. These are: 1) representatives of the genera Paeonia, Hosta and Iris - large generic complexes with a large number of cultivars; 2) their cultivars are characterized by a wide morphological diversity; 3) in Russia, these cultures have long been actively used in landscape design. Their own set of characteristics has been studied for them. These signs are important for the selection of plants used in the greened objects of the city. The genus Paeonia is represented by a sample of 19 cultivars of P. lactiflora Pall. with a Japanese flower shape. The variability of three quantitative characteristics was studied - the length of the stem, its thickness at the base and the diameter of the flower. The genus Hosta is represented by a sample of 23 names. The variability was studied according to four characteristics - the length and width of the leaf blade, the leaf area, and the length of the petiole. The genus Iris is represented by a selection of 10 names. The variability of six characteristics was studied - the height of the plant, the number of flowers on the peduncle, the length of the flower and the width of the flower, the length and width of the leaf blade. Statistical processing of the obtained data was carried out using the program “Statistica Base”. Classical methods of data processing are used. The development of models of flower beds is carried out using the AutoCAD program. From the total composition of the sample, promising varieties and forms were selected for each culture under study. In representatives of the genus Paeonia - this is the cultivar ‘Bu-Te’. For the genus Hosta, these are the cultivars ‘Frances Williams’ and ‘Liberty’. In the genus Iris, it is a form of natural origin I. sibirica f. albiflora. Based on the data obtained, 3 mixborders were designed with the participation of these cultivars and one form of natural origin.
... Введение. Создание и поддержание коллекционных фондов исторически является основополагающим направлением деятельности ботанических садов [15,20]. Поэтому одной из современных задач, не теряющих своей актуальности в долгосрочной перспективе, является обогащение культурной флоры за счёт привлечения новых, или ранее недостаточно изученных природных видов, форм и сортов, обладающих комплексом ценных хозяйственных и декоративных признаков [11][12]. ...
The article presents the results of a comparative analysis of the quantitative and qualitative composition of a sample of variegate herbaceous species and cultivars (36 names) from the collection fund of the Laboratory of Ornamental Plants, Tsitsin Main Botanical Garden, Russian Academy of Sciences. In the Poaceae Barnhart, Asteraceae Giseke, Lamiaceae Martinov and Saxifragaceae Juss. families have been found the largest number of genera containing species, which include forms with this leaf color. The analysis of data from long-term field experiments allowed us to assume the presence of a multidirectional influence of adaptive characteristics on the stability in the culture of different groups of introduced plants with variegate leaf color. Variegate plants are the most widely represented in the modern collection fund of the Laboratory of Ornamental Plants. For them, differences in stability in culture were revealed depending on the ratio of the differently colored parts of the leaf blade. Variegate plants have been studied according to their belonging to ecological groups, donor regions, life forms and the systematic status of natural ancestral species.
This study shows the improvement of classical methods of studying the growth and development of ornamental plants through the use of modern digital technologies. The purpose of the work is to show students in the direction of 35.03.10 “Landscape architecture” (Decorative plant growing profile) the biological features and decorative qualities of introduced plants in the conditions of the continental climate of the forest-steppe of Western Siberia and to create a digital phenological library. Methods. The construction of the phenospectrum was based on the works of T. I. Fomina and I. N. Beideman. For the design of complete phenospectrum of beautifully flowering plants, it was noted: regrowth, vegetation, budding, flowering, fruit tying, fruit ripening, the end of vegetation. In the abbreviated versions for the digital phenological library, only the periods of vegetation and decorative were noted, the flowering phase was filled with a color corresponding to the color of the variety or species. Calculations for plotting hydrothermal conditions were carried out by standard methods using statistical packages of the Microsoft Excel 2003 program. Results. Examples of single-band phenospectrum characterizing various phenorhythmotypes are given. The advantage of two-band phenospectrum compiled according to the Method of phenological observations for botanical gardens is shown when characterizing plants that create a flowering and decorative-deciduous effect. According to this Method, the phenology of vegetative aboveground shoots includes the phases: B1 – the beginning of spring regrowth; B2 – the unfolding of leaves, B3 – the end of shoot growth, L1 – the beginning of leaf death, L2 – complete leaf death. Additional phenophases are proposed for a more complete description of the spring and summer decorative-deciduous effect. Additional phenophases are proposed for a more complete description of the spring and summer decorative-deciduous effect. For example, Vant or Vlim is a period when young leaves have a bright anthocyanin or lemon color. Additionally, the period of regrowth of summer leaf generation is shown. In the course of training, on the basis of the compiled templates, the method of combining phenospectrum with diagrams of hydrothermal conditions of growing seasons, including abnormally arid and abnormally humid, is also mastered. Scientific novelty. The possibilities of a digital phenological library are shown, which allow to quickly and reliably simulate the flowering and decorative-deciduous aspects of flower expositions and landscape groups based on complete and abbreviated phenomenon spectra. The materials of the digital phenological library complement the visualization of landscaping projects.
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The basics of cultivar study and evaluation of decorative plants during the introduction.
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Brief results of the study of varieties of D. Austin’s roses for the purpose of cultivation in the South of Russia.
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Complex cultivar evaluation Syringa vulgaris L.
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