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

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.

2022 ◽  
Vol 93-94 ◽  
pp. 1-15
Author(s):  
Victoria Gritsenko

Gymnospermium odessanum is a rare relict endemic plant species. The research was carried out during G. odessanum flowering in 2019–2021 at the botanical-geographical plot “Steppes of Ukraine” of the M.M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG). Ecological and coenotic conditions of introduction at the NBG differ from natural habitats of the species and are not optimal for its vegetation. However, this species demonstrated ecological-coenotic plasticity and, over the decades, has formed a stable homeostatic introduction coenopopulation here. As of 2021, the area of introduction coenopopulation of G. odessanum at the NBG was 2,075 m2. It comprises 412 individuals of this species (including 40 seedlings, 241 juvenile, 45 immature, 40 virginal, 45 generative, and 1 sub-senile plants). Coenopopulation fragments with a high density of G. odessanum individuals are rare here, so the average density is low – only 0.2 individuals per 1 m2. In 2021, in the spectrum of age states, the total percentage of pregenerative individuals was very high and reached 88.8 %; the share of generative individuals was 10.9 %.In general, the age structure of the introduction coenopopulation of G. odessanum is characterized by long-term (2010–2021) stability. The spatial distribution of individuals in the introduction coenopopulation is of two kinds – random and in groups. This is due to combined myrmecochoric and barochoric propagation. Also due to myrmecochory, this coenopopulation tends to spread the area. Compared to natural coenopopulations, the introduction coenopopulation of G. odessanum at the NBG is characterized by a larger area, a much significant number, and, at the same time, a low average density of individuals. However, like in most of natural populations, its age spectrum is left-sided.The conducted research testifies the successful formation of the introduction coenopopulation of G. odessanum in the meadow-steppe cultural phytocoenosis of the NBG. This introduction coenopopulation is an example of a successful multi-year scientific experiment and effective ex situ protection and preservation of G. odessanum on the northern border of the Right Bank Forest-Steppe of Ukraine, far beyond the natural range of this endemic plant species.


Author(s):  
V. V. Gritsenko

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%).


Lankesteriana ◽  
2015 ◽  
Vol 7 (1-2) ◽  
Author(s):  
Alla Lavrentyeva ◽  
Roman Ivannikov

Nowadays many wild species of South American’s orchids are under threat of extinction from over-col- lection and habitat destruction. Many tropical native orchid species were propagated in the National Botanical Garden of National Academy of Sciences of Ukraine through a range of asymbiotic seed germi- nation techniques and tissue culture procedures aimed to preserve a number of individuals under artificial conditions in glasshouses in the temperate zone, with the aim to protect these species from complete extinc- tion. Our orchid collection includes plants of Cattleya and Laelia species. Some of these species are rare in the wild. To protect them from extinction the meth- ods of propagation should be developed. 


Author(s):  
L. V. Zavadskaya

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.


2020 ◽  
Vol 21 (2) ◽  
pp. 254-262
Author(s):  
Koval Inna

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.


Author(s):  
Dmitry V. Kochkin ◽  
Elena S. Glagoleva ◽  
Boris A. Galischev ◽  
Elena V. Spiridovich ◽  
Alexander M. Nosov ◽  
...  

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.


Author(s):  
R. I. Karaneuski ◽  
U. I. Torchyk

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.


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