Biosystems Diversity最新文献

{"title":"Ornithogalum boucheanum (Asparagaceae) in Eastern Europe: Native and synanthropic range, habitat conditions and state of population","authors":"O. Shynder, Y. Nehrash, T. Mamchur, T. Kostruba","doi":"10.15421/012307","DOIUrl":"https://doi.org/10.15421/012307","url":null,"abstract":"The geographical distribution, ecological and coenotic features of the place of growth and age structure of Ornithogalum boucheanum populations in Ukraine have been studied. In total, during the entire period of floristic research in Ukraine, 263 native sites of this species were recorded in 13 administrative regions (oblasts). Mostly these sites are concentrated in the Steppe zone, where the main part of the Eastern European fragment of the general natural range of O. boucheanum is represented. For other regions of Ukraine isolated reports of the species are known. It is noted that in addition to reduction in the number of natural habitats of O. boucheanum within the Forest-Steppe and in the southern part of Ukraine Polissya, a secondary adventive natural habitat of the species is formed, where it is part of the immigration group of foreign taxa. It was found that the natural habitats of O. boucheanum are characterized by a certain stenotopy, as the species needs some moisture and is more common in valley and balka landscapes most often in large river basins, which are not prone to drying out and can be favourable ecological corridors for long-distance migration. Favourable conditions for O. boucheanum habitats exist in floodplain and riparian forests, which have sufficient moisture, little competition from other species of grass and a sufficient amount of light in the spring. In addition, O. boucheanum can successfully master artificial and synanthropic groups of tree species, in particular being widespread in the Forest-Steppe and Steppe Robinia plantations. It was found that populations of O. boucheanum in Ukraine have different numbers: with an area of 4–6 hectares, in which there are tens and hundreds of thousands of individuals, to small populations on the northern border of distribution, in Kirovohrad and Kharkiv oblasts, which have a of young invasive character. It is possible that modern conditions have been favourable for the spread of O. boucheanum in the transition zone between the Forest-Steppe and Steppe, and that the process of forming new populations of O. boucheanum is taking place here.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"18 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87914580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of ground sections using UV-curable acrylic adhesives","authors":"S. Dobrovolsky","doi":"10.15421/012305","DOIUrl":"https://doi.org/10.15421/012305","url":null,"abstract":"Study of ground sections is the most used and, in some respects, still irreplaceable method for examination the microstructure of paleontological and many other hard and friable objects. At the same time, paleontological samples are relatively difficult for preparations of high-quality thin sections. Many techniques and means, particularly embedding media, have been proposed, but they are often hardly accessible, imperfect or insufficiently studied. A promising and easily accessible non-specialized medium, UV-curable acrylic adhesive (glue for glass) was tested for embedding and mounting of objects with diverse mechanical and optical properties. It shows notably good results, in particular durability, reliable adhesion, ease of use and lack of significant birefringence, which makes it especially valuable for polarized light microscopy. Properties of such adhesives are reviewed and compared with properties of epoxy resins and a number of other media. Disadvantages of the adhesives and ways to deal with them are also elucidated. In addition, broadly accessible tools and methods of sawing, embedding, grinding, mounting and other stages of the work are discussed. Efficiency of a number of grinding agents is measured. On the basis of all these results, a technique of making ground sections using easily accessible means was developed and described step by step. The technique was designed for fossil bones, but is applicable to diverse dry samples, including paleontological, neontological and geological ones.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"102 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87656155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Echinacea purpurea and Silybum marianum seeds on the body of rats with an excessive fat diet","authors":"M. Lieshchova, V. Brygadyrenko","doi":"10.15421/012310","DOIUrl":"https://doi.org/10.15421/012310","url":null,"abstract":"The impact of excess fat and high-calorie intake on the human body is an acute problem for many economically developed countries. Modelling the effects on the health of rats of supplementing their diet with crushed seeds of Echinacea purpurea (L.) Moench and Sylibum marianum (L.) Gaertn was carried out in a laboratory experiment. In the control group of animals, body weight increased by 700 mg/day, with the addition of E. purpurea seeds – by 1394 mg/day and with the addition of S. marianum seeds – by only 155 mg/day. A hypercaloric diet supplemented with E. purpurea caused a significant decrease in the relative weight of the liver, thymus, spleen, stomach, and brain. The supplementation with S. marianum seeds to the diet of animals significantly reduced only the relative weight of the thymus. Adding E. purpurea to the diet caused a strong increase in blood alkaline phosphatase activity, an increase in the cholesterol content, and a sharp increase in the atherogenic index. The seeds of S. marianum increased the alkaline phosphatase activity, reduced the glucose concentration, and triglycerides, significantly reduced the atherogenic index and lowered the C-reactive protein concentration in the rats’ blood when compared with the control group. The seeds of E. purpurea contributed to an increase in the erythrocyte and lymphocyte number in the blood, and the seeds of S. marianum – to a decrease in the thrombocyte concentration. The research results show the possibility of wider use of S. marianum fruits as a dietary supplement in the diet of patients with hypertension and impaired liver function.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"34 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78696973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marine flatworm Acanthozoon sp.-associated bacteria with antibiotic property from the Java Sea","authors":"A. Sabdono, D. P. Wijayanti, S. Subagiyo","doi":"10.15421/012306","DOIUrl":"https://doi.org/10.15421/012306","url":null,"abstract":"Neglected invertebrates, marine flatworms, have attracted global research interest due to their biological and chemical potential properties. The marine flatworms (Turbellaria), Phylum Platyhelminthes, belong to the Polycladida group. There are about 3000 species of free-living flatworms that make a living by hunting and eating other animals. A marine flatworm Acanthozoon sp. was used in this study due to its abundant presence in the site location. Staphylococcus epidermidis is an opportunistic pathogenic bacterium that was previously considered a harmless skin disease bacterium. This species is now considered to be in the first rank among the causative agents of nosocomial infection, specifically in the form of infections of the urinary tract, respiratory tract, and surgical site wounds. The aims of this study were to explore the biological diversity of marine flatworm-associated bacteria with antipathogenic properties and to detect the presence of polyketide synthase (PKS) and nonribosomal peptide synthetase NRPS gene clusters through a molecular approach. Recent studies have shown that S. epidermidis undergoes functional changes in the pro-inflammatory peptide family so that it has functions in immune evasion and biofilm development. Therefore, the search for new antimicrobial compounds is urgently needed due to the limited choice of antibiotic use. In the preliminary screening by overlay test, 7 out of 17 (41.2%) isolates showed antibacterial activities. These isolates were reselected and their activity confirmed by using plug agar and disk-diffusion methods. The FA02, FA03, FA05, FA07, FA13, FA16, and FA17 isolates demonstrated their inhibitory activities consistently against the causative agent of nosocomial infection S. epidermidis. Based on the morphological and 16S rRNA partial sequencing analysis, these isolates were closely related to the genus Virgibacillus, Brevibacterium, Alcanivorax, and Vibrio. None of these seven antibacterial strains possesses PKS-I and PKS-II, except NRPS genes for Virgibacillus salarius strain FA02, V. salarius strain FA16, and V. salarius strain FA17. The results of this study showed that bacteria associated with marine flatworms have future potential as a source of promising natural products for the development of antibiotics.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"50 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88047169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aconitum lasiocarpum and A. variegatum (Ranunculaceae) populations near the eastern limits of their ranges in the lowlands of Ukraine","authors":"V. Melnyk, O. Baransky, V. M. Batochenko, V. O. Volodymyrets, L. Dovhopola, N. Melnyczenko","doi":"10.15421/012304","DOIUrl":"https://doi.org/10.15421/012304","url":null,"abstract":"The study of the ranges, habitats and current state of rare and threatened species of plants is a relevant task of ecological research. The paper presents the results of the study of habitats and current state of populations of two rare species of Ukrainian flora Aconitum lasiocarpum (Rchb.) Gáyer and A. variegatum L. (Ranunculaceae) in the lowlands of Ukraine. These species are members of the mountain element of the flora of lowlands of Ukraine and glacial relics, which descended from the Carpathians Mountains to the lowlands of Ukraine during glaciation. Aconitum lasiocarpum is a rare species of European flora, included to the Red Data Books of the Czech Republic and Slovakia, Poland and Ukraine. Unlike the well studied A. lasiocarpum populations in the main part of the range in the Carpathian Mountains, local populations of this species near the eastern limit of the range in the lowlands of Ukraine remain undescribed. In these exclaves of the range in the lowlands of Ukraine A. lasiocarpum is a glacial relic. Here it grows in alder forests Ribo nigri-Alnetum ordo Alnion glutinosa alliance. Lowland A. lasiocarpum populations consist of 1000–10000 adults with a significant number of young individuals. In the past lowland A. lasiocarpum populations occupied a much large area. Deforestation and drainage melioration led to reduction of the populations. Taking into account the low number of glacial relic populations at the eastern limit of the range of A. lasiocarpum, all localities of this species in the lowland part of the range in Ukraine must be taken under protection in situ. Aconitum variegatum L. grows in wet alder and oak forest and in areas with hazel shrubs. The populations of this species in lowlands of Ukraine occupy a very small area and are characterized by low numbers of individuals. In the past populations of this species in the lowlands of Ukraine occupied a larger area. As a rare species of the Ukrainian flora A. variegatum deserves to be included to the Red Data Book of Ukraine. We propose to protect the unique population of A. variegatum near Susk village in Rivne region as a botanical reserve.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"39 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84853653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population dynamics and spatial distribution of large carnivores in the Ukrainian Carpathians and Polissya","authors":"R. Cherepanyn, B. Vykhor, A. P. Biatov, T. Yamelynets, І. V. Dykyy","doi":"10.15421/012302","DOIUrl":"https://doi.org/10.15421/012302","url":null,"abstract":"Large carnivores play an important role as indicators of the state of the natural ecosystems. The analysis of the number and distribution of large carnivores (brown bear – Ursos arctos, Eurasian lynx – Lynx lynx and grey wolf – Canis lupus) was established in the Ukrainian Carpathians and Ukrainian Polissya. Annual data on the number of large carnivores on the territories of hunting units and nature conservation areas from 2009 to 2019 was summarized. To analyze the number and distribution of large carnivores in the Ukrainian Carpathians, data from 4 regions were taken into account, namely Lviv, Zakarpattia, Ivano-Frankivsk and Chernivtsi regions. To analyze the number and distribution of large carnivores in Ukrainian Polissya, data from 6 regions were taken into account – Volyn, Rivne, Zhytomyr, Kyiv, Chernihiv and Sumy regions. According to official data obtained from hunting units and nature conservation areas in 2019, there were 375 bears, 435 lynxes and 563 wolves in the Ukrainian Carpathians; and 4 bears, 128 lynxes and 609 wolves in Ukrainian Polissya. Based on the collected data, the maps of the distribution of large carnivores in the Ukrainian Carpathians and Ukrainian Polissya were created in the format of a grid of squares of 10 by 10 km (cell size 100 km²), namely – density maps of populations of large carnivores, as well as maps of forest habitats of large carnivores. The obtained results provided a better understanding of the dynamics of large carnivores over the last decade in terms of regions, as well as the density of populations of large carnivores in certain areas and their distribution areas in the Ukrainian Carpathians and Ukrainian Polissya. However, the summary results of the number of individuals obtained based on official reports of hunting units and nature conservation areas are overestimated due to the problem of \"double\" accounting of animals by users of adjacent lands (hunting units, nature conservation areas). Therefore, it is important to establish synchronization of accounting between users of adjacent lands (nature protection areas, forestries, etc.), to use unified research methods, and to exchange monitoring data and information between institutions of different state subordination. Such scientifically based data are the basis for the development and implementation of measures for the conservation and management of large carnivore populations at the regional, national and international levels.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"6 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80953003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Schistosomatidae from the trematode fauna of aquatic and semi-aquatic birds in Uzbekistan","authors":"F. Akramova, U. Shakarbaev, I. Arepbaev, Z. Yorkulov, A. Ravshanova, S. Saidova, D. Azimov","doi":"10.15421/012301","DOIUrl":"https://doi.org/10.15421/012301","url":null,"abstract":"The article discusses the infection of wetland birds in Uzbekistan with the trematodes Schistosomatidae Stiles et Hassall, 1898. The research covered 282 individuals from the main groups of birds represented by the orders Pelecaniformes, Ciconiformes, Anseriformes, Gruiformes, Podicipediformes and Charadriiformes. The Schistosomatidae fauna of Uzbekistan includes 13 species: Bilharziella polonica (Kowalewsky, 1895), Trichobilharzia ocellata (La Valette, 1854), T. filiformis (Szidat, 1938), T. kowalewskii (Ejsmont, 1929), T. tatianae (Spasskaja, 1953), Macrobilharzia macrobilharzia Trawassos, 1923, Ornithobilharzia canaliculata (Rudolphi, 1819), O. baeri Fain, 1955, Dendritobilharzia pulverulenta (Braun, 1901), D. loossi Skrjabin, 1924, D. anatinarum Cheatum, 1941, Gigantobilharzia acotylea Odhner, 1910 and Gigantobilharziella monocotylea (Szidat, 1930). Predominant are representatives of the genera Trichobilharzia and Dendritobilharzia. The species composition of Schistosomatidae is most diverse in birds from the lower reaches of the Amu Darya, where a high rate of infection with larvae of some of these trematodes was also recorded in aquatic molluscs. 11 species of molluscs were registered in the studied regions: Galba truncatula (Muller, 1774), Stagnicola corvus (Gmelin, 1791), Radix auricularia (Linnaeus, 1758), Lymnaea stagnalis (Linnaeus, 1758), Physa fontinalis (Linnaeus, 1758), Physella acuta (Draparnaud, 1805), Planorbis planorbis (Linnaeus, 1758), P. tangitarensis Germain, 1918, Anisus spirorbis (Linnaeus, 1758), Gyraulus albus (Muller, 1774), Melanoides kainarensis Starobogatov et Izzatullaev, 1980, from the families Lymnaeidae (4 species), Planorbidae (4 species), Physidae (2 species) and Thiaridae (1 species). They are identified as intermediate hosts of Schistosomatidae and were infected with 7 species of flukes. The total rate of infection with larval stages of Schistosomatidae in molluscs was about 2.0%. The highest infection rate was observed in Melanoides kainarensis – 5.3%. Morpho-biological indicators for mature forms of B. polonica from different bird species (Anas platyrhynchos and Oxyura leucocephala) were confirmed by molecular genetic studies. The study identified foci of birds’ infection with Schistosomatidae and the occurrence of human cercarial dermatitis.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"141 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80295774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metamorphosis differences of caudiciform plants as an adaptation to arid conditions","authors":"Y. V. Aviekin, N. Nuzhyna, M. Gaidarzhy","doi":"10.15421/012303","DOIUrl":"https://doi.org/10.15421/012303","url":null,"abstract":"In the course of evolution, the formation of succulent variations in the underground and surface parts of plants in different taxa could occur simultaneously under the influence of similar abiotic factors, in particular as an adaptation to arid conditions, and similar structural features even in distant families are a manifestation of convergent evolution. Along with this, the development of such adaptive structures in ontogeny can occur in different ways in different taxa. Studying the anatomical and morphological features of the vegetative organs of Fockea edulis (Asclepiadoideae, Apocynaceae) at the early stages of ontogenesis and comparing them with those of other plants will improve the understanding of the features of growth and development of caudex-like plants. The research was conducted on seedlings, juvenile and immature plants of F. edulis. When comparing the features of the development of vegetative parts of three representatives of the Apocynaceae family, we found that the strategy of succulent traits development in F. edulis at the organ level is characterized by the active development of the hypocotyl already at the seedling stage, similar to Adenium obesum, and the subsequent formation of an expanded basal part of the stem due to the combined cortex-pith thickening and radish-like root due to the growth of xylem parenchyma. However, Petopentia natalensis is characterized by a mesophytic seedling. It was established that secondary thickening in the basal part of the stem occurs in two individual ways: in Adenium obesum, the cambium generates solid rings of phloem and parenchymatized xylem; in P. natalensis and F. edulis, the bundle type of conducting elements is preserved. The thickening of the tap root in F. edulis is similar to that in A. obesum.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"95 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75428317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution and management of Fallopia japonica in riparian biotopes in Slovakia and Austria","authors":"B. Vasekova, M. Majorošová, I. Belčáková, B. Slobodník","doi":"10.15421/012244","DOIUrl":"https://doi.org/10.15421/012244","url":null,"abstract":"Globally, invasive species represent a serious threat to biodiversity and to the ecosystem. As an undesirable part of riparian ecosystems, invasive plants form continuous growths on the banks of watercourses. One of the biggest problems at river bank sites is Japanese knotweed, Fallopia japonica (Houtt.) Ronse Decr, which is an extremely invasive and aggressive weed. The topic of the interaction of flow and invasive plant species in shore stands is rich and presents a wide range of possibilities for research. The presented paper brings the results of our studies on the invasions of F. japonica in chosen riparian vegetation sites in Austria and Slovakia from 2011–2020 (36 stands). Our research was aimed at the survey on the changes in the distribution (spread) of F. japonica at the selected river sites; assessment of the impact of the watercourse regime on the spread of F. japonica; monitoring of the population growth dynamics of F. japonica and assessment of possibilities for effective eradication of F. japonica in context of the riparian vegetation management. We used standard techniques of field survey, mapping, flow modeling/simulation, and laboratory experiments. Our research results showed that water streams are not primary invasion starters until there is a flood. As long as flooding does not exceed the critical speed of the water stream, there is no direct damage to the invasive plant. The water body can be a secondary trigger for plant invasion at normal speeds. In addition, F. japonica reproduction ability directly conditions its population dynamic growth. We can report that selective invasion removal adapted to local conditions can be most suitable and beneficial for municipalities.","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"3 4","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72428118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of grain yield performance and its stability in various spring barley accessions under condition of different agroclimatic zones of Ukraine","authors":"V. Hudzenko, N. Buniak, L. Tsentylo, O. Demydov, I. Fedorenko, M. Fedorenko, V. Ishchenko, H. Kozelets, L. Khudolii, S. Lashuk, N. Syplyva","doi":"10.15421/012240","DOIUrl":"https://doi.org/10.15421/012240","url":null,"abstract":"Two extremely urgent problems of biological and agronomic research nowadays are ensuring an optimal balance between usage of natural resources to meet rapidly growing needs for food production and preservation of biodiversity. It is also important to extend the genetic diversity of the main crop varieties in agroecosystems. At the same time, modern varieties should be characterized by a combination of high yield and preserving yield stability under variable conditions. Solving the outlined tasks requires comprehensive research and involvement in breeding process of the genetical diversity concentrated in genebanks of the world. Barley (Hordeum vulgare L.) is one of the most important crops that satisfy the various needs of humanity. In respect to this, in 2020–2022, a multi-environment trial was conducted in three agroclimatic zones of Ukraine (Forest-Steppe, Polissia, and Northern Steppe). We studied 44 spring barley collection accessions of different ecological and geographical origin, different subspecies and groups of botanical varieties which were obtained from the National Center for Plant Genetic Resources of Ukraine. Statistical indices (Hom, Sc) and graphical models (GGE biplot, AMMI) were used to interpret the yield performance and its stability. Both individual ecological sites in different years and combinations of different sites and years of trials were characterized for productivity, discriminating power and representativeness. The environments differed quite strongly among themselves in terms of these indicators. It was established that most of the genotypes were characterized by higher adaptability to individual environmental conditions (stability in different years), compared to adaptability for all agroclimatic zones (wide adaptation). A strong cross-over genotype by environment interaction was found for most studied accessions. Nevertheless, both genotypes with very high stability in only one agroclimatic zone (Amil (UKR), Gateway (CAN)) and genotypes with a combination of high adaptability to one or two ecological niches and relatively higher wide adaptability (Stymul (UKR), Ly-1064 (UKR), Rannij (KAZ), Shedevr (UKR), and Arthur (CZE)) were identified. There were also the accessions which did not show maximum performance in the individual sites, but had relatively higher wide adaptability (Ly-1059 (UKR), Ly-1120 (UKR), Diantus (UKR), and Danielle (CZE)). In general, the naked barley genotypes were inferior to the covered ones in terms of yield potential and wide adaptability, but at the same time, some of them (CDC ExPlus (CAN), CDC Gainer (CAN), and Roseland (CAN)), accordingly to the statistical indicators, had increased stability in certain ecological sites. Among naked barley accessions relatively better wide adaptability according to the graphical analysis was found in the accession CDC McGwire (CAN), and by the statistical parameters CDC ExPlus (CAN) was better than standard. The peculiarities of yield manifestation and","PeriodicalId":44107,"journal":{"name":"Biosystems Diversity","volume":"15 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81467418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}