scholarly journals Potential applications of some varieties of Hosta L. from collection of Laboratory of ornamental plants of Main Botanical Garden RAS on objects of urban landscape architecture

2021 ◽  
Vol 25 ◽  
pp. 56-73
Author(s):  
Yu.A. Khokhlacheva ◽  
◽  
N.A. Mamaeva ◽  
Y.V. Kuznetsova ◽  
◽  
...  
Keyword(s):  
Landscape Architecture ◽  
Urban Landscape ◽  
Vegetative Reproduction ◽  
Ornamental Plants ◽  
Statistical Processing ◽  
Botanical Garden ◽  
Sample Population ◽  
Structural Part ◽  
Genetic Features ◽  
Selection Of

According to one of the modern trends, botanical gardens located within the city limits should be their structural part not only in the territorial, but also in the functional aspect. Therefore, the purpose of the work is a scientifically based selection of representatives of the genus Hosta L. from the collection of the laboratory of ornamental plants of the Main Botanical Garden of the Russian Academy of Sciences (MBG RAS) — cultivars that are promising for use in urban landscape compositions and the development of various variants of flower compositions. The object of research is a sample of representatives of the genus Hosta from the collection of the laboratory of ornamental plants of the MBG RAS, containing 23 names. The composition of the sample population is formed on the basis of taking into account four criteria: 1) stability in culture; 2) belonging of varieties to different garden groups; 3) sufficient prevalence of the variety; 4) high coefficient of vegetative reproduction. Statistical processing of experimental data was carried out in accordance with classical methods using the program «STATISTICA Base». The development of models of flower beds is based on the methods and techniques generally accepted in the design of landscape compositions using the AutoCAD program. In the course of the conducted research, the selection of promising representatives of the genus Hosta for urban gardening was carried out and eight variants of flower compositions were proposed (rockery, 2 groups and 5 mixborders). It was found that in all the representatives of the genus Hosta recommended for use, the influence of genetic features dominates in the structure of variability of the studied quantitative characteristics, which provides a high probability of preserving the planned structure of flower compositions during the operation of the landscape architecture object.

scholarly journals Ground cover plants research for objects of landscape architecture

2021 ◽  
Vol 25 (1) ◽  
pp. 53-63
Author(s):  
I.Yu. Bochkova ◽  
◽  
Yu.A. Khokhlacheva ◽  
Keyword(s):  
Landscape Architecture ◽  
Ornamental Plants ◽  
Ground Cover ◽  
Field Studies ◽  
Botanical Garden ◽  
Field Surveys ◽  
Color Chart ◽  
Urban Gardening ◽  
Biometric Measurements ◽  
Selection Of

This article presents the results of work on the selection of groundcover plants (both light-loving and shade-tolerant) that are promising and very promising for use on landscape architecture objects. The work was carried out during 2018 on the basis of the collection Fund of the laboratory of ornamental plants of the Main Botanical garden (MBG RAS), on two experimental sites located on the main territory of the MBG RAS, in the collection-exhibition «Shadow garden» and on the exhibition area «Decorative perennials». A total of 225 plants were selected during the study. During the growing season, field surveys of experimental samples were systematically performed and phenological observations were made. Field studies included biometric measurements of the height of the Bush and peduncle, the diameter of the Bush, the diameter/length of the flower/inflorescence, as well as refinement of the color of the flowers/inflorescences (using a special color scale of the English Royal society of flower growers (RHS color Chart)). The result of this work is a list that includes 40 names. These are very promising and promising species that we recommend for use in urban gardening.

scholarly journals The technique of integrated assessment of varieties of korean chrysanthemum (Chrysanthemum coreanum), introduced in Belarus

2019 ◽  
Vol 64 (1) ◽  
pp. 33-39
Author(s):  
S. V. Tsekhanovich
Keyword(s):  
Integrated Assessment ◽  
Vegetative Reproduction ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Landscape Design ◽  
Point Scale ◽  
National Academy Of Sciences ◽  
Modified Method ◽  
Number Of Leaves ◽  
Academy Of Sciences

Recently, with the development of decorative gardening and landscape design, the extension of the assortment of floral and ornamental plants including perennial plants becomes relevant. chrysanthemum Korean – one of the most promising crops for flower decoration of the cities of Belarus, characterized by long flowering periods, unpretentiousness at cultivation, accessible ways of reproduction ways of plants, a wide variety of varieties. In the article present a modified method of comprehensive assessment of chrysanthemum Korean (Chrysanthemum coreanum), recommended for use in industrial landscaping. The method is based on 11 decorative and biological qualities: stability of flower coloration, duration and stability of flowering plants, number of inflorescences, height and shape of the plant, number of leaves on the stem, winter hardiness of plants, resistance to diseases and pests, ability of plants to vegetative reproduction, preservation of decorative qualities without plant transplantation which are important for industrial cultivation of plants. Each qualities is evaluated on a 3-point scale. The sum of points determines the perspective of the variety for use in gardening. Varieties of chrysanthemum that received 27 points or more are very promising plants, 19–26 – a promising plants, below 18 points – to the unpromising plants.The method was used on a collection of chrysanthemum Korean of the Central Botanical Garden of the National Academy of Sciences of Belarus. Based on this technique, perspective plant varieties were selected for the green construction of Belarus.

scholarly journals Introduction and selection of the genus of Astilbe in the Main Botanical Garden named after N. V. Tsitsin of the RAS

2020 ◽  
pp. 52-58
Author(s):  
A. V. Kabanov
Keyword(s):  
Ornamental Plants ◽  
Botanical Garden ◽  
Early Flowering ◽  
Main Task ◽  
Main Principle ◽  
Breeding Work ◽  
History Of ◽  
The Creation ◽  
Two Hybrid ◽  
Selection Of

The Laboratory of Ornamental Plants of theof the Main Botanical Garden named after N. V. Tsitsin of RAS has collected a very representative collection of representatives of the genus Astilbe , which includes 132 varieties and 8 natural species.The collection contains all geographical groups of this genus that grow in temperate climates. At the first stage of collection, the main task was to include historical varieties that reflect the various stages of selection. We managed to collect a unique variety of varieties that reflects the breeding achievements of the vast majority of breeders of this crop and all known breeding centers. Special attention was paid to the creation of separate complexes of varieties belonging to both individual breeders and breeding centers. The result of the first stage of work was the creation of a collection of varieties that reflects the history of breeding culture over a 120-year period. Currently, selection work has begun on the basis of the collection. One of the directions of selection is to obtain high and early flowering forms of Astilbe . Currently, two hybrid samples have been selected, which are promising for use as a variety due to their decorative characteristics. Crosses are also carried out within the natural species Astilbemicrophylla and Astilbebiternata , which were previously little used in breeding and have valuable decorative features. Since the beginning of selection, the principle of selecting varieties for inclusion in the collection Fund has changed. Now the main principle of selection is to include varieties with valuable characteristics that can be used in breeding work.

scholarly journals Morphobiological properties of Belarusian varieties of Korean chrysanthemum (Chrysanthemum coreanum)

2021 ◽  
Vol 66 (3) ◽  
pp. 339-344
Author(s):  
N. A. Bazyleva ◽  
A. L. Gulis ◽  
V. A. Beinia ◽  
S. V. Tsekhanovich
Keyword(s):  
Vegetative Reproduction ◽  
Ornamental Plants ◽  
Late Summer ◽  
Botanical Garden ◽  
National Academy Of Sciences ◽  
New Varieties ◽  
The Republic ◽  
Autumn Flowering ◽  
Academy Of Sciences ◽  
Variety Testing

The assortment of floral and ornamental plants is annually replenished with new varieties of perennial floral plants. The group of late summer and autumn flowering perennials is one of the most popular in landscaping. Korean chrysanthemum (Chrysanthemum сoreanum) is one of the most promising crops for landscaping settlements in the Republic of Belarus, therefore, breeders of the Central Botanical Garden of the National Academy of Sciences of Belarus began to work with this group of small-flowered chrysanthemums.The article describes the results of breeding work, the purpose of which was to create local highly decorative varieties for our climatic zone. The method of free cross-pollination and subsequent selection from the obtained hybrid seedlings of the most promising forms were used in the work. The most significant features in the selection were the following: flowering time, winter hardiness, resistance to diseases and pests, as well as good vegetative reproduction. As a result, 4 domestic varieties of Korean chrysanthemum have successfully passed state variety testing and have been registered in the National List since 2020. Descriptions of these new varieties, their biometric parameters, decorative parameters and flowering times are provided.

scholarly journals Diversity and selection of the continuous-flowering gene, RoKSN, in rose

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Vanessa Soufflet-Freslon ◽  
Emilie Araou ◽  
Julien Jeauffre ◽  
Tatiana Thouroude ◽  
Annie Chastellier ◽  
...  
Keyword(s):  
19Th Century ◽  
Ornamental Plants ◽  
Repressor Gene ◽  
Important Trait ◽  
Floral Repressor ◽  
The 19Th Century ◽  
Selection Of

AbstractBlooming seasonality is an important trait in ornamental plants and was selected by humans. Wild roses flower only in spring whereas most cultivated modern roses can flower continuously. This trait is explained by a mutation of a floral repressor gene, RoKSN, a TFL1 homologue. In this work, we studied the origin, the diversity and the selection of the RoKSN gene. We analyzed 270 accessions, including wild and old cultivated Asian and European roses as well as modern roses. By sequencing the RoKSN gene, we proposed that the allele responsible for continuous-flowering, RoKSNcopia, originated from Chinese wild roses (Indicae section), with a recent insertion of the copia element. Old cultivated Asian roses with the RoKSNcopia allele were introduced in Europe, and the RoKSNcopia allele was progressively selected during the 19th and 20th centuries, leading to continuous-flowering modern roses. Furthermore, we detected a new allele, RoKSNA181, leading to a weak reblooming. This allele encodes a functional floral repressor and is responsible for a moderate accumulation of RoKSN transcripts. A transient selection of this RoKSNA181 allele was observed during the 19th century. Our work highlights the selection of different alleles at the RoKSN locus for recurrent blooming in rose.

Evolution of the grapevine (Vitis vinifera L.) imprinted by natural and human factorsThis review is one of a selection of papers presented at the symposium on Vitis at the XVII International Botanical Congress held in Vienna, Austria, in 2005.

2007 ◽  
Vol 85 (8) ◽  
pp. 679-690 ◽  
Author(s):  
Roger Bessis
Keyword(s):  
Vegetative Reproduction ◽  
Molecular Characteristics ◽  
Vitis Vinifera L ◽  
Biological Interactions ◽  
Direct Effects ◽  
Parasitic Fungi ◽  
International Botanical ◽  
International Botanical Congress ◽  
Environmental Agents ◽  
Selection Of

This paper is concerned with vegetative reproduction, which is the only mode of propagation in cultivated grapevines. After a brief summary of the systematics of the Vitaceae the question of the nomenclature of cultivated grapevines is discussed. Intra-varietal variability is discussed using morphological and molecular characteristics. The origins of variation are presented: mutations, foreign nucleic acids, and memory of previous environmental conditions. Grapevines provide characteristic products, leading viticulturalists to make selections among the diversity observed in the vineyard, thus decreasing diversity. Grapevines interact with various environmental agents. One example, the natural defence provided by resveratrol, is analysed, showing its direct effects against parasitic fungi and its indirect effects, both metabolic and genetic, on other organisms. Thus, the grapevine, viticulturalists, and their environment form a web of biological interactions.

A PROMISING ASSORTMENT OF TREES AND SHRUBS FOR LANDSCAPING IN VOLGOGRAD CITY

2021 ◽  
pp. 5-18
Author(s):  
E.N. Tyukhtina ◽  
Keyword(s):  
Negative Impact ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
Green Spaces ◽  
Ecological Situation ◽  
High Concentration ◽  
High Level ◽  
The City ◽  
Trees And Shrubs

The article deals with one of the most relevant topics of the modern city and ecology - the problem of landscaping in Volgograd. The city is characterized by an industrial urbanism, with a high concentration of population, saturation of production facilities and vehicles, which contributes to a high level of negative impact on the environment. The pace of greening of the city lags behind the pace of construction of the residential sector, and the existing green spaces do not meet the sanitary and hygienic, aesthetic requirements. The prospects of this problem are determined, the existing green spaces are considered, data on the climatic conditions of the city and the ecological situation are given. Improvement in the field of landscaping is associated with the scientifically sound placement of green spaces, taking into account all the factors that affect the growth and development of plants in the urban environment. Unfortunately, due to the uneven distribution of the assortment of trees and shrubs, the species composition of the central streets and squares of the city is extremely poor. The study focuses on the role of the botanical garden in urban landscaping and aims to create recommendations for the sorting of tree and shrub plants for urban landscaping. As a result of the analysis of the assortment of ornamental plants of the open ground of the botanical garden, the article proposed species and varieties of woody and shrubby plants that have passed the introduction tests for more than 5-10 years. Recommendations for sorting are aimed at improving the ecological situation of the city and greening the recreation areas of citizens. The proposed list of tree and shrub species cannot fully solve the problem of greening the city, but it will help to significantly enrich the composition of tree and shrub plants.

The use of multifunctional statistical criteria in the development of technological aspects of self-design of students’ educational and professional activities

2020 ◽  
pp. 23-30
Author(s):  
Tatyana A. Erina ◽  
Natalya N. Motkina
Keyword(s):  
Statistical Significance ◽  
Statistical Processing ◽  
Automated System ◽  
Statistical Hypothesis ◽  
Self Management ◽  
Professional Activities ◽  
Selection Of ◽  
Angular Transformation ◽  
Statistical Criteria

Researchers in the humanities almost always have to deal with the problem of statistical processing of results and their interpretation. This is a rather laborious and painstaking work, which can be greatly simplified through the use of multifunctional statistical criteria. Within the framework of the study related to the problem of self-design of educational and professional ac-tivities of students, the analysis of the effectiveness of the introduction of technological elements using multifunctional criteria was carried out: φ* criterion – Fisher’s angular transformation and binomial criterion m. The statistical significance of the results of the introduction at a certain stage of the technology of the workshop is revealed, which makes it possible to study and apply the ele-ments of self-management in the educational and professional activities of students. For promising purposes, it is proposed to create an automated system that implements the selection of the appropriate criterion for the problem to be solved and the verification of the statistical hypothesis put forward by the researcher.

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