Growth and development of Carthamus tinctorius L. in the conditions of Transnistria

Carthamus tinctorius L. is a plant, that is used for oil production and dyeing, and also used for medical purposes and cosmetology. A distinctive biological feature of this plant is its high drought resistance. In the process of global warming the increase in air temperature in Transnistria over the past 70 years amounted to 1,2…1,3 °C, the increase in soil temperature over the past 20 years in the observed soil layer 0,2…3,2 m amounted 0,8…1,2 °C. In this regard the intercalation of drought resistant crops, such as Carthamus tinctorius L., into agricultural production is relevant. The dura- tion of the growing season of a Carthamus tinctorius L. collection specimen of unknown origin in the Republican Botanical Garden (in the town of Tiraspol) when sown in middle of April for the period from the year of 2008 to the year of 2017 ranged from 103 to 113 days. In the conditions of Transnistria in the year of 2020 for the first time the influence of sowing time of Carthamus tinctorius L. on the development of a complex of features was studied. Sowing of Carthamus tinctorius was carried out five times: the 20th and the 27th of March, the 3rd and the 14th of April, the 2nd of May. The study of the influence of the sowing time showed decreasing values of the complex of features with later sowing time of Carthamus tinctorius L. The mostly significant decreased with a later sowing time were such features as the number of branches of the first and the second level, the number of seeds in the inflorescence, the number of seeds per plant. The best sowing date in the conditions of an acute drought in the year of 2020 was the first sowing time on the 20th of March. The value of the features in this sowing period was: plants’ height — 55 cm, the number of branches of the first level — 8,7 pieces, the number of branches of the second level — 4,6 pieces, the number of inflorescences per plant — 14,1 pieces, the number of seeds in the inflorescence — 7,0 pieces, the number of seeds per plant — 64,8 pieces.

Rare fraction of spontaneous flora of the garden and park landscapes of the Middle Pobuzhzhia

On the territory of the garden and park landscapes of the Middle Pobuzhzhia 31 species of higher vascular plants that have national or regional protection status have been revealed or cited in literature. Of these, 9 species are listed in the current edition of the Red Data Book of Ukraine, 10 species have regional protection status in Vinnytsia region and 20 species in Cherkasy region. National Dendrological Park «Sofiyivka» NAS of Ukraine has the largest number of species from the Red Data Book of Ukraine (8 species): Tulipa quercetorum, Euonymus nana, Scopolia carniolica, Allium ursinum, Pulsatilla pratensis, Pulsatilla patens, Trapa natans, Epipactis helleborine, Neottia nidus-avis. Only by one rare species were revealed in the Pechersky (Scopolia carniolica), Sokiletsky (Pulsatilla pratensis), Verkhivsky (Trapa natans) and Kryzhopilsky (Epipactis helleborine) parks. Phytoindication assessment of the identified localities showed that the most of them are on the border or even outside their ecological-coenotic amplitude by one or more factors, which indicates their vulnerability to external influences. Currently, the greatest threat to the existence of species at present is the recreational load, so according to the Law on the Red Data Book of Ukraine, they all need proper protection measures.

Landscape areas of the dendrological park “Trostyanets”: peculiarities of formation, tendencies of compositional structure changes, and current state

The article presents an analysis of the state and changes in the structural and compositional organization of plantations of landscape areas of the Trostyanets arboretum.

Рeculiarities of Оrontium aquaticum l. introduction in «Sofiivka» National dendrological park of the NAS of Ukraine

As a result of the study it was determined that Orontium aquaticum L. under the conditions of the Right- Bank Forest-Steppe of Ukraine undergoes a full cycle of seasonal growth and development. The morphometric parameters of plants growing in well-lit areas practically do not differ from a natural ones. O. aquaticum reproduces both by seeds and vegetatively. Ten-year-old plants, up to 45 cm high, form about 85 green fruits from the pericarp with a diameter of 0.6 to 1.8 cm and a weight of 0.4 to 2.8 g. The seed productivity is 39.7%. According to the assessment, O. aquaticum belongs to promising and highly decorative species.

Introduction of meadow species of the genus Thalictrum L. in the dendrological park “Druzhba” in Precarpathian region

The article presents a short issue on the distribution of Thalictrum L. in the flora o Precarpathian region. The introductional pecularities of Thalictrum flaum L., Thalictrum aquilegifolium L., Thalictrum minus L., та Thal- ictrum simplex L. on the collection sites of the dendrological park “Druzhba” are revealed. Examples of phenophases of ontogenesis of species in soil and climatic conditions of the dendropark, their adaptation to new growing conditions under the influence of cultivation and care of plants are given. It is shown how it affects the appearance of populations of all species, their height, features of growth of individuals, flowering, fruiting. A brief description of the medicinal properties of some species and their decorative value is given.

“Sofiyivka”— a masterpiece landscape design of 18–19 centuries on 225th anniversary of its founding

The material describes the history of the dendrological park "Sofiyivka", as well as its modern material and technical base for scientific research related to monitoring the condition and preservation of flora of the forest-steppe zone of Ukraine; support and development of botanical collections, as well as biotechnology, genetics, breeding and reproductive biology of plants; Landscaping and landscaping not only ensures the preservation of the historic core and the development of the park, but also promotes the creation of already mentioned and other new varieties.

Rare plant species in Zavodska hromada (Myrhorod district, Poltava region, Ukraine)

According to our own observations, literature data and herbarium data, we compiled a list of rare plant species of Zavodska hromada (Myrhorod district, Poltava region, Ukraine) including the information on the findings of them. We have posted plant observations on iNaturalist: https://www.inaturalist.org/people/igor_olshanskyi. There are two species that are included in Annex I of the Bern Convention [according to the oflcial translation into Ukrainian: https:// zakon.rada.gov.ua/laws/show/995_032#Text] (Jurinea cyanoides and Salvinia natans), five species that are listed in the Red Data Book of Ukraine (2009) (Anacamptis palustris, Astragalus dasyanthus, Dactylorhiza incarnata, Gladiolus tenuis and Salvinia natans) and eight species are rare in Poltava region (Amygdalus nana, Convallaria majalis, Inula helenium, Nymphaea alba, Sanguisorba officinalis, Utricularia vulgaris, Valeriana officinalis, Vinca minor). On the territory of Zavodska hromada, rare plant species are more common in rivers, meadows and swamps in the floodplains of the rivers Sula, Artopolot and Bodakva. Also, they grow on steppe slopes and in forests.

Forest Vegetation Cover in Yok Don National Park, Vietnam

Yok Don National Park is located in the tropical rainforest zone on the Central Highlands of Vietnam. The obtained results from the study undertaken on the composition of plant species and forest vegetation in National Park indicated a record of 856 species, 473 genera and 129 families that belongs to the four divisions of vascular plants. These includes: Lycopodiophyta, Polypodiophyta, Pinophyta and Magnoliophyta. Useful plants of 856 taxonomy species listed consists of 498 species of medicinal plants, 157 species of timber plants, 144 species of edible plants, 60 species of ornamental plants, 19 species of industrial plants, 10 species of fiber plants and 38 species of unknown use plants, respectively. During the duration of investigation, Peliosanthes teta Andrews was newly recorded in the forest vegetation of National Park. A variety of forest vegetations in the area under study is described. In this study, four major vegetation types of forest were identified in Yok Don National Park.

Introduction and perspectives of Henomeles culture

The selection fund of Japanese henomeles differs in considerable variety. It was one of the most interesting and rare objects for acclimatization in order to enrich our country мwith plants useful for the national economy. This fruit crop has special genetic and morphological features, due to which it is used in various fields and directions. Therefore, the study of henomeles is quite relevant and requires the development and improvement of various agronomic techniques o cultivation, taking into account the conditions of the region of cultivation of this plant.

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

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.