scholarly journals Collection of the genus Cotinus Mill. in the National dendrological park “Sofiyivka” of NAS of Ukraine

Author(s):  
V. M. Oksantyuk ◽  
L. A. Koldar ◽  
M. V. Nebykov

Intr0ducti0n. Green plantations in Ukraine require optimization of species, shape and varietal composition of ornamental plants. These include the genus Cotinus Mill. one of the oldest genera of angiosperms of the Sumac family (Anacardiaceae Lindl.). Matcrials and mcth0ds. The species and varietal composition of the Cotinus collection of the Sofiyivka National Dendrological Park of the National Academy of Sciences of Ukraine was studied. Morphological fea- tures of collectibles of the genus Cotinus were studied according to generally accepted methods. Rcsults and discussi0n. In he collection of the National Arboretum “Sofiyivka” of the National Academy of Sciences of Ukraine two species and 4 cultivars of the genus Cotinus were tested and studied, namely: C. obovatus Raf., C. coggygria Scop., C. coggygria ‘Royal Purple’, C. coggygria ‘Purpureus’, C. coggygria ‘Young Lady, C. coggygria ‘Golden Spirit’. According to our research, all members of the genus Cotinus winter-, frost-resistant, as well as drought-resistant plants. They have satisfactory growth and bloom and bear fruit annually. C0nclusi0ns. Thus, the collection of plants of NDP “Sofiyivka” includes a valuable fund of genetic resources of the genus Cotinus, which is used mainly as a mother plant for the reproduction of ornamental forms that are in demand in the market of seedlings.

Author(s):  
S. V. Tsekhanovich

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.


2021 ◽  
Vol 17 (3) ◽  
pp. 175-182
Author(s):  
T. O. Shcherbakova

Purpose. To define of phenological and morphological features of A. donax var. versicolor growth during the introduction in the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine (NBG). Methods. The object of research was the plants of A. donax var. versicolor in the collection of ornamental grasses of the department of flower and ornamental plants of NBG. The plants were grown on a sunny experimental area during 2014–2020. Since under NBG conditions, A. donax var. versicolor did not enter the flowering phase, the beginning of the phases of spring regrowth, leaf unfolding, and the end of the growing season were recorded. Morphometric parameters and shoot-forming ability were investigated for 3–5 years of cultivation. Results. The beginning and duration of the phases of shoot spring regrowth and the unfolding of leaves of A. donax var. versicolor as well as their dependence on the sum of effective temperatures was established. Thus, spring regrowth begins with renewal buds on May 11 ± 5 days at the effective temperature sums of 226.6 ± 19.7 °С. The phase of leaf development in plants occurred on May 20 ± 7 days. The effective temperature sum at the beginning of this phase was 309.45 ± 11.66 °C. The productivity of shoot formation (1.6 ± 0.3 shoot per plant) under the conditions of introduction was determined. Conclusions. A. donax var. versicolor plants did not have a full cycle of seasonal development in the conditions of the NBG. Plants formed vegetative monocyclic shoots 240–260 cm tall. The duration of their vegetation was 182–189 days. The optimal period for the growth of the ground mass of plants fell on July-August. During this period, the leaves were quickly formed, the number of which was 28.8 ± 6.68 on the shoot. The correlation between the rate of accumulation of effective temperatures and the rate of regrowth of plant shoots was recorded.


Author(s):  
Almas Asadova

Background: In recent years, large areas are periodically exposed to drought due to the climate change towards warming. In this regard, there is a need to expand the area of cultivation of drought-resistant leguminous crops. One of these species of interest for cultivation in the central lowlands of the Republic of Azerbaijan, where bean crops are greatly suppressed, is vigna. To date, this culture is not widespread, its biological and energy potential is underestimated. Therefore, the study of morphological and biological characteristics of promising varieties of cowpea in the region and a comprehensive study of the genetic resources of the culture is relevant. The purpose of the research is to study the cowpea collection, to identify forms with economically valuable traits and to create on their basis a new highly productive, technologically advanced, valuable with its quality vigna grain for a selection in the conditions of the Republic of Azerbaijan.Methods: The studies were conducted in 2007-2018 at the Institute of Genetic Resources (IGR) of the National Academy of Sciences (NAS) of Azerbaijan. 33 samples were used as research material: 9 of them were local forms and 24 were samples obtained from VIR. The vegetation period and resistance to diseases have been studied and the productivity and structure of the harvest have been analyzed. Result: As a result of research, the most high-yielding and high-quality samples K-269, K-257, AzeVÝG-2, K-271, K-262, AG-340 were revealed in the studied vigna samples. During the implementation of the breeding program using the results, we have developed a new early ripe, drought-resistant, heat-resistant, disease-resistant and high-yielding variety Ayla by the method of repeated individual selection from the VIR collection. These studies are an important initial study for the subsequent production of new varieties. We hope that this will lead to an increase in the acreage of cowpea in the Republic of Azerbaijan.


Author(s):  
N. A. Bazyleva ◽  
A. L. Gulis ◽  
V. A. Beinia ◽  
S. V. Tsekhanovich

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.


2021 ◽  
Vol 17 (1) ◽  
pp. 14-20
Author(s):  
T. O. Shcherbakova ◽  
V. F. Gorobets

Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine. Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero.                 Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering. Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months.


2021 ◽  
Vol 17 (2) ◽  
pp. 91-98
Author(s):  
Oxana Pereboichuk ◽  
Svitlana Mashkovska

Purpose. Analysis of species and varietal diversity of the genus Salvia L. cultivated flora of the world, including Ukraine; prognostic assessment and determination of the directions of ornamental representatives of the genus introduction to the conditions of the Forest-steppe of Ukraine. Methods. Analysis and synthesis, comparison and generalization of information data, introduction forecast. Results. The modern assortment of the genus Salvia is presented in quantitative, taxonomic, arealogical and ecological-cenotic terms. Belonging of the species of the genus to 6 main centers of origin of cultivated plants was determined, and a significant diversity of life forms (nanophanerophytes, microphanerophytes, hamephites, hemicryptophytes, theophytes), naturally formed under the influence of factors determined by different geographical and ecological-phytocenotic conditions of plant growth was reflected. Species assortment of the genus Salvia from the collection fund of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine was analyzed in comparison with the collections of other Ukrainian botanical gardens. The list of decorative species of the collection, found in the natural flora of Ukraine, was given. Three groups of species have been identified by origin, what determines the conditions for plant cultivation in the Forest-Steppe of Ukraine. In terms of taxonomic structure, introduced sage species belong to eight (according to Bentham, 1833) out of twelve sections, which represent biomorphological diversity and confirm the high introduction potential of these plants.  The species and interspecific hybrids most fully used in breeding work and represented by a significant varietal diversity were distinguished, as well as the sage assortment of the collection of ornamental plants of the NBG was presented. Conclusions. It has been revealed that the species and varietal diversity of the genus Salvia of the world cultivated flora has a significant introduction potential for the Forest-Steppe zone of Ukraine. It was determined that the main base for the introduction of the ornamental species of the genus Salvia in Ukraine is the collection of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine. The main directions of further introduction and breeding work with representatives of the genus Salvia in the Forest-Steppe conditions of Ukraine were highlighted.


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