scholarly journals Phenology of Gymnospermium odessanum (DC.) Takht. in the M. M. Gryshko National Botanical Garden of NAS of Ukraine

2021 ◽  
pp. 58-63
Author(s):  
V. V. Gritsenko
Keyword(s):  
Significant Proportion ◽  
Vegetation Period ◽  
Botanical Garden ◽  
National Academy Of Sciences ◽  
Natural Habitats ◽  
Mass Flowering ◽  
Beginning Of Flowering ◽  
The Difference ◽  
Academy Of Sciences ◽  
Fruit Formation

The aim is to find out the peculiarities of the phenology of the rare endemic species Gymnospermium odessanum (DC.) Takht. in the conditions of introduction on the botanical-geographical plot “Steppes of Ukraine” of the M. M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine in 2021. Methods — field stationary and cameral. It is established that the vegetation period of G. odessanum in 2021 lasted from March 24 to May 22 and amounted to 60 days. 10 phenological phases are singled out and characterized: 1) the beginning of vegetation and budding, 2) mass budding and beginning of flowering, 3) mass flowering and completion of budding, 4) flowering peak, 5) mass flowering and the beginning of fruit formation, 6) completion of flowering and mass fruit formation, 7) fruit growth, 8) fruit opening, 9) ripening of seeds in open capsules, 10) dissemination and completion of the vegetation. It was found that during the mass formation of fruits, a significant number of fruits stopped their growth and development and did not form seeds in the future. This could be due to the night frosts on the eve or the difference in the conditions of the region of introduction from the natural habitats of the species. Budding and flowering (in total) account for a smaller part (30%) of the vegetation period. Most (70%) of the vegetation period is associated with fruits and seeds. A significant proportion of the vegetation period is the phenophase of ripening of seeds in open capsules (27%).

scholarly journals Formation of the introduced coenopopulation of Crocus reticulatus on the botanical-geographical plot “Steppes of Ukraine” at the M. M. Gryshko National Botanical Garden of the NAS of Ukraine

2020 ◽  
Vol 87-88 ◽  
pp. 65-75
Author(s):  
Victoria Gritsenko
Keyword(s):  
Natural Populations ◽  
Botanical Garden ◽  
Average Density ◽  
Logistic Growth ◽  
National Academy Of Sciences ◽  
Natural Habitats ◽  
Normal Ranges ◽  
Covered Area ◽  
Academy Of Sciences ◽  
Number Of Individuals

The research was carried out during Crocus reticulatus flowering time in 2002–2020 at the botanical-geographical plot “Steppes of Ukraine” of the M.M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG). Crocus reticulatus was introduced to the NBG from the natural habitats in 2002–2003. Ten generative individuals were planted in an area of 2 m2. The area of coenopopulation and the number of individuals increased gradually until 2018. In 2019–2020, there was a rapid increase in the covered area and number of individuals. However, the average density of individuals decreased. The percentage of pregenerative plants (juvenile, immature, and virginal) increased, and the percentage of generative individuals decreased. As of 2020, the area of introduced coenopopulation of C. reticulatus at the NBG reached 195 m2. It consists of 175 individuals (38 juvenile, 21 immature, 23 virginal, and 93 generative). The average density is 0.9 individuals per 1 m2. The spatial distribution of individuals is characterized as random and in groups. This is due to the predominance of the myrmecochoric and barochoric propagation. Indicators of the area, number, and average density of the introduced coenopopulation are within the normal ranges of the natural populations; however, they are smaller than those in maternal populations. The number of individuals of different age states and the number of individuals with one and two or three flowers in the introduced coenopopulation is close to such parameters of the natural population from Kyiv Plateau. Flowers of different colors were observed both in the introduced coenopopulation and in natural populations of C. reticulatus. As of 2020, the introduced coenopopulation of C. reticulatus is in the phase of logistic growth.

scholarly journals Morphobiological characteristics of pink-crowned Narcissus from the collection of the Central Botanical Garden of the National Academy of Sciences of Belarus

2018 ◽  
Vol 63 (4) ◽  
pp. 463-471
Author(s):  
L. V. Zavadskaya
Keyword(s):  
Central Area ◽  
Botanical Garden ◽  
Multiplication Factor ◽  
National Academy Of Sciences ◽  
Local Conditions ◽  
Biological Features ◽  
Morphobiological Characteristics ◽  
Academy Of Sciences ◽  
Phenological Phases ◽  
Selection Work

Data on a genus of the Daffodils have been given in the article. The areas of species have been designated. Dates of selection work for the Daffodils have been determined. Countries and number of plant breeders of the Daffodils have been presented. The first cultivar of the Daffodil with pink crown has been specified, too.Group accessory for the 55 Daffodils from the collection of the Central Botanical Garden of NAS of Belarus has been defined. The age and authorship of the studied cultivars have been established. Assessment of their biological features in the conditions of the Central area of Belarus has been carried out. Periods and duration of some phenological phases have been established. Height of plants and sizes of flowers have been estimated. Periods of the Daffodils with a pink crown blossoming have been established. The abundance of blossoming depends on cultivar’s features and duration of their cultivation without grafting. The flowers of Daffodils with a pink crown have been measured from 6.5 to 11.5 cm. For the long-cupped Daffodils sizes and forms of crowns are various. The multiplication factor during the three years cultivation fluctuates from 5 to 16 units. Grades are rather steady in local conditions against diseases and pests.From studied cultivars the 13 best ones have been recommended for cultivation.

scholarly journals Assessment of Monoterpene Components in Wild Rose Petals Extract

2020 ◽  
Vol 21 (2) ◽  
pp. 254-262
Author(s):  
Koval Inna
Keyword(s):  
Gas Chromatography ◽  
Steam Distillation ◽  
Botanical Garden ◽  
Component Composition ◽  
Biologically Active ◽  
National Academy Of Sciences ◽  
Volatile Organic ◽  
Rose Petals ◽  
Academy Of Sciences ◽  
Active Substances

The content, component composition, and main directions of the use of monoterpenes of wild rose petals compounds are considered in the research. The study on six wild rose species was carried out in the collection of M.M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine. Volatile organic compounds were isolated by steam distillation, and their determination was performed by means of gas chromatography. R. rugosa petals contained the highest number of monoterpenoids, while R. canina petals – the lowest. In our research twentyone different (acyclic, monocyclic, bicyclic) monoterpenoids were identified, including alcohols, aldehydes, ethers, and ketones. All groups of monoterpenoids are biologically active substances and have a significant effect on the aroma of the studied plants.

Photodosimeter Badge System

PEDIATRICS ◽  
1985 ◽  
Vol 75 (2) ◽  
pp. 437-441
Author(s):  
Peter C. Scheidt ◽  
Phyllis M. Sternthal ◽  
Robert Anderson ◽  
Robert Studholme ◽  
Dolores A. Bryla ◽  
...  
Keyword(s):  
Child Health ◽  
Human Development ◽  
Optical Density ◽  
Action Spectrum ◽  
Radiant Energy ◽  
National Academy Of Sciences ◽  
High Concentration ◽  
Film Badge ◽  
The Difference ◽  
Academy Of Sciences

The Committee on Phototherapy in the Newborn of the National Academy of Sciences has recommended10 development of a compact system to continuously measure radiant energy exposure of infants treated with phototherapy. A small bilirubinimpregnated photodosimeter film badge was developed by the Beckman Instrument Company for this purpose and was used during the National Institute of Child Health and Human Development (NICHD) phototherapy study. This report summarizes the results of data obtained with this measurement device and briefly describes the performance of this system. METHODS The film badge dosimeter system consists of a 5.2x2.6-cm plastic badge composed of an imbedded disk of bilirubin cast in a polymeric substrate and sandwiched between two layers of clear plastic. Before exposure to light, the badge exhibits a high optical density at 460 nm due to a relatively high concentration of bilirubin. The optical density of the badge at 400 to 500 nm decreases as a function of the total dose of light within the action spectrum for the photodecomposition of bilirubin to which the badge has been exposed. Initial optical density at 460 nm is measured by a densitometer designed and dedicated specifically for this purpose. After exposure, the optical density is again measured by insertion into the densitometer; the total dosage, which is the time-integrated irradiance received by the badge during the photodecomposition process, is derived from the difference in optical density between the two readings. (A description of the calibration of the badge is available on request from Biometry Branch, Epidemiology and Biometry Research Program, National Institute of Child Health and Human Development, Bethesda, Maryland.)

scholarly journals ANALYSIS OF GYNZENOSIDES IN THE ROOTS OF PANAX GINSENG INTRODUCED IN THE CENTRAL BOTANICAL GARDEN OF NAS OF BELARUS

2018 ◽  
Vol 62 (4) ◽  
pp. 447-454
Author(s):  
Dmitry V. Kochkin ◽  
Elena S. Glagoleva ◽  
Boris A. Galischev ◽  
Elena V. Spiridovich ◽  
Alexander M. Nosov ◽  
...  
Keyword(s):  
Panax Ginseng ◽  
High Performance ◽  
Lateral Roots ◽  
Total Content ◽  
Botanical Garden ◽  
Dry Mass ◽  
Quantitative Composition ◽  
National Academy Of Sciences ◽  
The Republic ◽  
Academy Of Sciences

For the first time, a detailed study of the qualitative and quantitative composition of ginsenosides in the Panax ginseng roots was carried out with the help of high-performance liquid chromatography combined with mass spectrometry (HPLC-MS). The plants were introduced into the conditions of the Republic of Belarus at the experimental plot of the Central Botanical Garden of the National Academy of Sciences of Belarus. It was found that in the examined roots, all basic neutral glycosides of ginseng (ginsenosides Rb1, Rc, Rb2/Rb3, Rd, Rf, Rg1 and Re), as well as their malonylated derivatives (malonylginsenosides Rb1, Rc, Rb2/Rb3, Rd, Rg1 and Re) and some “minor” ginsenosides (20-gluco-ginsenoside Rf, notoginsenosides R1 and R2, isomers of malonyl-ginsenosides Rb1 and Rd) are present. The research also showed that different parts of the P. ginseng roots differ significantly in a total content of ginsenosides: for the main root, this parameter was 3.3 % of dry mass, and for the lateral roots – 7.8 % of dry mass.

scholarly journals The nature of the natural renewal of species of the genus Abies Mill. in the conditions of the Central Botanical Garden of the National Academy of Sciences of Belarus

2019 ◽  
Vol 64 (1) ◽  
pp. 102-106
Author(s):  
R. I. Karaneuski ◽  
U. I. Torchyk
Keyword(s):  
Botanical Garden ◽  
Older Age ◽  
Age Group ◽  
National Academy Of Sciences ◽  
Different Ages ◽  
Vital State ◽  
Academy Of Sciences

The article contains information on the presence and vital state of the natural renewal of 10 species of fir growing on the territory of the Central Botanical Garden of NAS of Belarus.Under the conditions of introduction, the investigated species of fir give a viable self-seeding, though not always abundant and uniform. The best indices of height and diameter of the root neck of different ages are the shoots of A. nordmanniana and A. sibirica. A. alba, A. nordmanniana and A. sibirica have the largest number of self-sowing adults of the older age group. In all investigated firs, the vital state of the shoots is estimated as healthy.

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.

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