Northwestern Region Of Russia Research Articles

Genetic Diversity for Effective Resistance in Wheat Landraces from Ethiopia and Eritrea to Fungal Diseases and Toxic Aluminum Ions.

To reveal genetic diversity for effective resistance to five foliar diseases and toxic aluminum ions, the entire collection of wheat species from the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) originating from Ethiopia and Eritrea were studied regarding their traits. The collection contains 509 samples of four wheat species (Triticum aestivum-122 samples; T. aethiopicum-340 samples; T. polonicum-6 samples; and T. dicoccum-41 samples). The majority of accessions are new entries of landraces added to the Vavilov collection as a result of the Russian-Ethiopian expedition in 2012. Wheat seedlings were inoculated with causal agents of leaf rust (Pt), powdery mildew (Bgt), Septoria nodorum blotch (SNB), and dark-brown leaf spot blotch (HLB). The types of reaction and disease development were assessed to describe the levels of resistance. All samples of T. aethiopicum were also screened for seedling and adult resistance to Pt, Bgt, and yellow rust (Pst) under field conditions after double inoculation with the corresponding pathogens. To study tolerance to abiotic stress, seedlings were grown in a solution of Al3+ (185 µM, pH 4,0) and in water. The index of root length was used to characterize tolerance. Seedlings belonging to only two accessions out of those studied-k-68236 of T. aethiopicum and k-67397 of T. dicoccum-were resistant to Pt at 20 °C but susceptible at 25 °C. Specific molecular markers closely linked to the five genes for Pt resistance effective against populations of the pathogen from the northwestern region of Russia were not amplified in these two entries after PCR with corresponding primers. Four entries of T. dicoccum-k-18971, k-18975, k-19577, and k-67398-were highly resistant to Bgt. All samples under study were susceptible to HLB and SNB. Under field conditions, 15% of the T. aethiopicum samples were resistant to Pst, both at the seedling and the flag leaf stages, but all were susceptible to the other diseases under study. Among the evaluated samples, 20 entries of T. aestivum, 1 of T. polonicum (k-43765), and 2 of T. dicoccum (k-18971, k-67397) were tolerant to aluminum ions. The identified entries could be valuable sources for the breeding of T. aestivum and other wheats for resistance to biotic and abiotic stresses.

ЭКОНОМИКО-ПРАВОВЫЕ АСПЕКТЫ ИМПОРТОЗАМЕЩЕНИЯ ПРОГРАММНОГО ОБЕСПЕЧЕНИЯ В СЕВЕРО-ЗАПАДНОМ РЕГИОНЕ РОССИЙСКОЙ ФЕДЕРАЦИИ

Currently, the issue of import substitution of software and the transition to domestic analogues is being actively discussed in Russia. The North-Western region of the Russian Federation, which is one of the key centers of the IT industry in Russia, has become the object of special attention in this matter. In this article, the economic and legal problems of software import substitution in the north-western region of Russia considered and the legislative framework and economic justification analyzed.

Антропогенные факторы заболеваний и гибели атлантических лососей (Salmo salar L.)

The present review examines the long-term trend of declining populations of "wild" Atlantic salmon in most European coun-tries and north-western regions of Russia, due to intensive fishing, poaching, anthropogenic impact on marine waters and freshwa-ter river systems, logging, numerous dams and hydroelectric power plants on spawning rivers, destruction of aquatic biotopes and bottom biocenoses. Deep depression of the majority of Atlantic salmon populations has been observed in the Arctic fishing re-gions of the Russian Federation for more than 30 years, which has led to a decrease in average annual catches by more than 20 times over half a century. Since 2015, the Federal Center for Animal Health has been conducting research to identify the causes of viral and bacterial etiology diseases and the death of Atlantic salmon populations going to spawn in the rivers of the Kola Pen-insula. Currently, in the course of research, the causes of disease and death of Atlantic salmon have not been established. This worries residents and the leadership of the Murmansk region, the scientific community, the Rosselkhoznadzor, the Ministry of Natural Resources and Ecology of Russia. Changes in the adaptive properties of fish, physiology, in the digestive system and eti-ology – the slaughter and death of Atlantic salmon in an aquatic environment contaminated with heavy metals, petro-hydrocarbons and other pollutants are considered through anthropogenic factors of influence. In the course of further compre-hensive studies, the establishment of the causes of diseases and death of salmon will allow to develop a system of measures and recommendations for the elimination of diseases and death of Atlantic salmon in the rivers of the Kola Peninsula, to begin the restoration of salmon populations.

Influence of Kamchatka Blocking and East Asian winter monsoon on the winter 2m‐temperature over South Korea

AbstractThis study examines the factors affecting the 2m‐temperatures (T2m) in South Korea in winter (DJF) from 1979/1980 to 2018/2019. For this purpose, we performed an empirical orthogonal function (EOF) analysis of the geopotential height at 500 hPa in the region 15°–75°N, 70°E–180° centred around the Korean Peninsula. The first EOF mode, which accounted for 31.1% of the total variance of the winter T2m in the region, is related to the KamChatka Blocking Frequency (KCBF). The second mode, which accounted for 18.3%, is associated with East Asian winter monsoon (EAWM). In addition to EOF analysis, the partial correlation (PC) analysis also confirmed that KCBF Index and EAWM Index, which are highly correlated with the winter T2ms in South Korea, are independent of each other. The individual and combined effects of the KCBF and EAWM are examined because they independently affect the winter T2ms in South Korea. According to the composite analysis, in the years when KCBF is higher than normal (H_KCBF), negative and positive Z500 anomalies are located over the south Sea of Japan and the Kamchatka Peninsula, respectively. In other words, the positive geopotential anomaly over the Kamchatka Peninsula lowers the T2ms of South Korea by blocking the flow of cold air moving eastward from the Korean Peninsula. In the years when a strong EAWM occurred (S_EAWM), negative and positive Z500 anomalies are located over the Manchuria region and the northwestern regions of Russia, respectively. Consequently, cold air in the north moves southward, resulting in lower T2ms in South Korea. For the combined effects of KCBF and EAWM on the T2ms, winters of 40 years are categorized into L_KCBF‐W_EAWM, L_KCBF‐S_EAWM, H_KCBF‐W_EAWM and H_KCBF‐S_EAWM years. The analyses show that when KCBF and EAWM are in phase, the T2ms in South Korea are more prominent than when they are out‐of‐phase.

Research of romanov sheep metabolism characteristics over the period of lactation in estations of North-Western region

Selenium is an essential trace element in the diet of farm animals. Selenium is a part of the antioxidant enzymes, preventing the free radicals cell destruction. Selenium availability varies greatly due to the great number of biogeochemical territories. The NorthWestern region of Russia is a territory with selenium deficiency in soils and plants. In this study, it was found that the concentration of selenium in pasture plants was in the range from 0,059 to 0,067 µg /kg with an optimal value of 0,1 mg/kg. It was found that the concentration of hemoglobin, the number of red blood cells, the concentration of total protein and albumins in blood of Romanov sheep over the period of lactation was below the reference values. The number of red blood cells also increased. On the 100th day, the number of red blood cells was higher by 7.78% compared to the 30th day and by 14.59% compared to the 10th day since the beginning of lactation. There was an increase in the concentration of total protein due to the albumin fraction. On the 100th day, the total protein concentration was 15.29% higher compared to the 10th day and 9.46% higher compared to the 30th day since the beginning of lactation. On the 100th day from the start of lactation, the hemoglobin concentration was 19.07% higher compared to the 10th day from the start of lactation and 10.73% higher compared to the 30th day from the start of lactation. It was marked that those parameters had got higher to the low reference limit at the late period of lactation. This tendency could be the effect of metabolic imbalance and selenium deficiency in sheep diet.

Long-Term Studies of Wheat Leaf Rust in the North-Western Region of Russia

Leaf rust, caused by Puccinia triticina (Pt), is a widely occurring disease of wheat in the North-Western Region of Russia. Annual Pt surveys of wheat in this region have been conducted between 2001 and 2021. In total, 740 single urediniospore isolates were analyzed over 20 years. Virulence to Lr9, Lr19 and Lr24 were rare in 2001–2010 and was not detected after 2010. Temporal variation in virulence was determined on Thatcher lines with Lr1, Lr2a, Lr2b and Lr2c genes and was found to be relatively high. Virulence to Lr1 increased to 100% from 2001 to 2014. Until 2010, most northwestern Pt isolates were avirulent to Lr2a and virulent to Lr2b and Lr2c. In the middle of 2010, avirulence to Lr2a, Lr2b, Lr2c and Lr15 began to increase. Strong variability between years was revealed for virulence to Lr20 and Lr26. Based on a set of 20 differential lines, 122 virulence pathotypes were detected. More than half of those were observed only once across all years. Pathotypes were divided into groups of B-, C-, D- and F-, virulent to Lr1 and Lr2a, dominating until 2009. From 2010 pathotype groups M- and P-, virulent to Lr1 and avirulent to Lr2a, began to dominate. Temporal differentiation of northwestern Pt population for virulence was determined. High similarity was observed for Pt accessions in 2001–2009 and 2010–2015 and these two groups differed moderately from each other. Pt accessions from 2016–2019 and 2020–2021 differed from each other and from accessions from the previous collection period. Field response of Lr differential lines was studied in the North-Western Region during 1998–2022. Wheat genotypes with genes Lr9, Lr19, Lr23, Lr24, Lr25, Lr28, Lr29, Lr35, Lr39, Lr42, Lr43, Lr45, Lr47, Lr48, Lr49, Lr50, Lr51, Lr53 and Lr57 remained resistant throughout the period of the study. Leaf rust severity in lines TcLr12, TcLr21, TcLr22a, Gatcher (Lr27+31), TcLr44 and Pavon (Lr46) varied from 1% to 30% before 2014 and significantly decreased after 2014. A general trend of decreasing virulence of the Pt pathogen has been observed in the North-Western Region over the recent years.

Geochemical Indicators for Paleolimnological Studies of the Anthropogenic Influence on the Environment of the Russian Federation: A Review

Lake sediments are a reliable source of information about the past, including data of the origin of water bodies and their changes. Russia has more than 2 million lakes, so paleolimnological studies are relevant here. This review deals with the most significant studies of sequential accumulation of pollutants, including heavy metals in recent lake sediments in Russia. The key areas are northwestern regions of Russia (Murmansk Region, the Republic of Karelia, Arkhangelsk Region), the Urals (Chelyabinsk Region, the Republic of Bashkortostan), and Siberia. The review presents the data of pollutants accumulation, the sedimentation rate in lakes in the anthropogenic period, and the key sources of pollution of the environment in each of the mentioned regions. The article is divided into three parts (sections): industrial areas, urbanized areas, and background (pristine) areas so that readers might better understand the specifics of particular pollution and its impact on lake ecosystems. The impact of metallurgical plants, mining companies, boiler rooms, coal and mazut thermal power plants, transport, and other anthropogenic sources influencing geochemical characteristics of lakes located nearby or at a distance to these sources of pollution are considered. For instance, the direct influence of factories and transport was noted in the study of lake sediments in industrial regions and cities. In the background territories, the influence of long-range transport of pollutants was mainly noted. It was found that sedimentation rates are significantly lower in pristine areas, especially in the Frigid zone, compared to urbanized areas and industrial territories. In addition, the excess concentrations of heavy metals over the background are higher in the sediments of lakes that are directly affected by the source of pollution. At the end of the article, further prospects of the development of paleolimnological studies in Russia are discussed in the context of the continuing anthropogenic impact on the environment.

The History of Shipbuilding of the Baltic Fleet during the Peter the Great era in Russian Historiography: Geography and Activities of Admiralty and Shipyards

The subject of the study is the results of the study by domestic researchers of the history of the formation and development of the objects of the shipbuilding base of the Baltic Fleet during the Peter the Great era. The aim of the work is to analyze the works of Russian scientists-historians of the pre-revolutionary, Soviet and post-Soviet periods on this problem and to form on this basis a holistic view of the formation and development at the initial stage of one of the most important branches of the domestic military industry. In the course of the study, the main attention will be paid to the consistent consideration of the history of the origin, the specifics of the organization and maintenance of activities, as well as the results of the activities of all shipyards that worked in the interests of the Baltic Fleet during the designated period. The research methodology is based on a combination of general philosophical, general scientific historical and special historical methods, such as analysis and synthesis, modeling, problem-chronological and perspective analysis method. The novelty of the conducted research lies in the fact that such an approach to the study of the initial stage of the history of the shipbuilding industry in the interests of the Baltic Fleet has not been applied in Russian historiography. According to the results of the study, a generalized picture of all shipbuilding enterprises established in the Peter the Great era in the north-western region of Russia and in the territories of the Baltic States and Finland conquered during the Northern War is presented. The results of the study allowed us to assess the nature of the formation of the industry as mainly spontaneous, although not devoid of a certain logic in the specific historical conditions of the Northern War. Certain patterns of placement of certain objects of shipbuilding infrastructure, the influence of geographical, hydrographic, production-logical and other features on their specialization are shown. A problematic issue requiring further study is formulated.

Determinants of sustainable development of the North-West region

One of the most important factors of sustainable development of the regions of the Russian Federation in modern conditions is the balanced development of all industries. Tourism and hotel business are among the most dynamically developing industries in the North-Western region of Russia. The high level of competition, as well as the intensive growth of the market in the hospitality sector, requires new solutions from representatives of this business to increase competitiveness. The purpose of the study is to assess the level of balanced development of hotel business enterprises on the example of four-star hotels in St. Petersburg, which is one of the important factors in ensuring the sustainable development of the region. The article proposes a methodology for assessing the competitiveness of four-star hotel enterprises. The article uses comparison methods, graphical methods, and the method of analysis. As a result of the study, the factors of sustainable development of the hospitality industry were identified, the competitiveness index of these enterprises was proposed and calculated, which can be used in the future to develop measures to ensure the sustainable development of the region.

Transformation of economic indicators of the construction industry of the Northwestern region of the Russian Federation

Subject. This article deals with the issues related to the economic development of the Northwestern region of Russia. Objectives. The article aims to analyze the changes in economic indicators of the construction industry of the Northwestern Federal District of the Russian Federation. Methods. For the study, I used retrospective, statistical, correlation and regression analyses. Results. The article finds that labor productivity is a factor that has a key impact on the change in the growth rate of the construction industry. Conclusions and Relevance. The article concludes that a high differentiation of economic growth rates in the construction industry is being observed in the Northwestern Federal District. The results of the study can be used by the authorities in the development of programs for strategic planning of the region's economy.

Study of the lactostimulating effect of the feed additive Carbomilk DRY PLUS

The purpose of our work was to determine the lactostimulating effect of the feed additive Carbomilk DRY PLUS in cows during the milking period. The research was conducted in one of the livestock farms in the North-Western region of Russia. Cows after calving were given an individually suggested feed additive for the study. To control metabolic processes, biochemical studies of blood serum were carried out, with the determination of indicators characterizing the functions of the liver, kidneys, pancreas and the state of mineral metabolism. As a result of the research, it was found that the studied feed additive positively affects protein and carbohydrate metabolism in cows during the milking period and contributes to an increase in milk productivity with an increase in milk fat content.

Events of the Civil War in the North-West of Russia in the Ego-Documents of the Military Personnel of the Northern-Western Army (1918–1920)

The article is devoted to the analysis of sources of personal origin, reflecting the views of the military personnel of the White Guard North-Western Army on the events of the civil war that unfolded in the north-westernregion of Russia in 1918–1920. These documents make it possible to obtain the necessary, valuable and in many cases unique first-hand information from people who directly participated in the civil war. Meanwhile, the ego-documents of the participants in the white movement in the North-West of Russia rarely become the subject of special study. The study was based mainly on previously unpublished documents from the Large fund of the Archive-Museum of the Alexander Solzhenitsyn House of Russia Abroad (ASHRA Archive-Museum). The features of understanding by the military personnel of the circumstances of the emergence of the white movement in the region, including the role of the “great powers” in this process, are analyzed. Particular attention is paid to the problems of motivation of military personnel who voluntarily joined the ranks of the White formations, their attitude towards the civilian population and towards the enemy — the Red Army soldiers, including prisoners. The question of the level of provision of the White Guard detachments with food and uniforms is revealed. The analysis of ego-documents created by representatives of the white movement in the North-West of Russia significantly expands the knowledge available in science about the features of civil confrontation in the region, contributes to a deep understanding of the role of the human factor in extreme everyday life.

Metabolic blood parameters of pigs of different age groups in the pathogenesis of nonspecific bronchopneumonia

Despite the sufficient amount of antimicrobial drugs and specific therapy and prevention, the proportion of respiratory diseases in pigs is still quite high [2, 5, 6, 13]. In some farms, the incidence, as well as post-slaughter changes in the lungs, can reach up to 100%. At the same time, mortality is usually insignificant. The main damage among the pig population consists of an economic component - it is the culling of slaughter products, a decrease in weight gain, low conversion of feed, carrying out therapeutic and preventive measures. There is evidence of hypoxemia and hypoxia developing against this background, which can lead to the development of acidosis, a decrease in the barrier properties of organs and tissues and the development of organopathologies. The previously obtained data on immunological blood tests allow us to talk about the suppression of innate and adaptive immunity in nonspecific bronchopneumonia [2, 4, 5, 6, 12, 13].The purpose of this work was to conduct biochemical studies to study the state of metabolic parameters of the blood of pigs of different age groups, patients with nonspecific bronchopneumonia.The research was carried out at one of the large pig farms in the North-Western region of Russia and at the Department of Pathophysiology of the St. Petersburg State Medical University.As a result of studies in all experimental groups of animals, the effect of nonspecific bronchopneumonia on biochemical processes in piglets was established. In all sick animals, a noticeable decrease in the content of total protein, albumins and globulins was found, which can lead to inhibition of the function of protective mechanisms, and from all links of immunity (innate and adaptive). At the same time, the activity of alkaline phosphatase and lactate dehydrogenase enzymes was established in sick piglets, which indicates the generalization of the process with liver damage and the development of acidosis.

Роль ФГУП «Атомфлот» в реализации программ реабилитации объектов ядерного наследия и в системе обращения с отработавшим ядерным топливом и радиоактивными отходами в Мурманской области

The article provides an overview of the FSUE Atomflot activities aimed at improving the infrastructure and production facilities for the management of spent nuclear fuel and radioactive waste at FSUE Atomflot and ensuring nuclear, radiation and environmental safety, both in the Murmansk region and throughout the northwestern region of Russia. Carrying out work within the Federal Target Program “Ensuring nuclear and radiation safety for 2016—2020 and for the period up to 2030” in cooperation with production structures of both Rosatom and other federal and regional departments responsible for the ecological situation in the region also takes an important place.

Investigation of the evolution of thunderstorm with hail in North-Western region of Russia by three-dimensional numerical simulation

Using numerical non-stationary three-dimensional Cu model the investigation of the evolution of thunderstorm with hail was carried out in North-Western region of Russia. Spatial and temporal variations of the main cloud and precipitation characteristics obtained, especially, cloud electrification intensity, volume charge density and electric field strength. It was shown that the main role in cloud electrification under given conditions has the polarization one. On the contrary, ice-ice collision was not so intensive because of small mass of cloud ice crystals.

Antioxidant complexes of sea buckthorn (Hippopha? rhamnoides L.) of northwest Russia

Sea buckthorn fruits, due to the content of complexes of water- and fat-soluble antioxidants, have therapeutic and prophylactic properties. Their content depends on the species, subspecies, varieties, botanical varieties, ecological and geographical origin of sea buckthorn fruits. The paper presents the results of studies of the composition of antioxidants and antioxidant activity of three botanical varieties of sea buckthorn (Hippopha? rhamnoides L.) growing in the Leningrad region of the northwestern region of Russia. As part of the antioxidant complex, the content of phenolic antioxidants (phenolic compounds, flavonoids, phenolic acids) and vitamin C was investigated. The greatest variability of water-soluble sea buckthorn antioxidants is associated with the content of vitamin C – from 82 to 297 mg/100g, depending on the botanical variety. The content of total phenolic compounds was 600–795 mg/100g, and the content of flavonoids and phenolic acids was 265–346 and 105–170 mg/100g, respectively. In the complex of fat-soluble antioxidants of sea buckthorn fruits of different varieties, the content of vitamin E and carotenoids was investigated, which was 6.9–8.3 and 10.7–14.9 mg/100g, respectively. The content of vitamin C influences the formation of antioxidant properties determined by the DPPH method and coulometric titration of water and alcohol fractions, forming a number of botanical varieties of sea buckthorn: Orange> Vitamin> Giant. The antioxidant activity of alcoholic fractions is 1.3–1.7 times higher than that of aqueous fractions, depending on the botanical variety of sea buckthorn fruits. The content of phenolic antioxidants (total phenolic compounds, flavonoids and phenolic acids) influenced the antioxidant activity determined by the FRAP method, forming a number of sea buckthorn varieties: Vitamin> Orange> Giant

The Influence of Manganese on Growth Processes of Hordeum L. (Poaceae) Seedlings.

Manganese, as one of the xenobionts, belongs to the group of heavy metals, which, in high concentrations, can negatively affect the development of plants. In small concentrations, it is necessary for plants for normal growth and development. It is present in soils and is available to plants to varying degrees. In acidic soils, it often acts as a toxic element, and plants do not develop well and can even die. Screening major crops for manganese tolerance is essential. Based on the analysis of the collection of barley (Hordeum L., Poaceae), the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) presented data that manganese-tolerant varieties and samples are concentrated in western and northern countries with a wide distribution of soils with low pH levels and high contents of mobile manganese. It follows from the diagnostic results that the maximum number of barley genotypes resistant to manganese is concentrated in Sweden, Finland, the northwestern and northern regions of the CIS countries, and the Russian Federation. In most cases, the samples tolerant to Al showed resistance to Mn as well, which is of great interest for further study of the mechanisms of plant resistance to these stressors. As a rule, samples from the northern territories—zones of distribution of acidic soils—were highly resistant. In this case, the role of the species belonging to the sample was leveled out. The highlighted areas (Scandinavia (Finland, Sweden), northern and northwestern regions of Russia, Belarus, and the Baltic countries) are sources of germplasm valuable for selection for acid resistance of barley.

СОСТОЯНИЕ ФИТОПЛАНКТОНА И ЦИАНОТОКСИНЫ В ПЯТНЕ «ЦВЕТЕНИЯ» В ОЗЕРЕ СВЯТОЗЕРО (БАССЕЙН ОНЕЖСКОГО ОЗЕРА, РОССИЯ)

Introduction. This paper is the first to address the state of phytoplankton in eutrophic Svyatozero Lake (61о32´ N, 33о35´ E.), used for trout farming in the Republic of Karelia, in the North-Western Region of Russia, during the period of water bloom. For northern reservoirs, water bloom is not a typical phenomenon. However, due to climate warming and the large-scale development of trout breeding in the region, it becomes more urgent to study blooming reservoirs and related consequences for northern aquatic ecosystems and humans. Methods. We processed phytoplankton samples and measured photosynthesis using conventional methods. The concentration of chlorophyll a in water was determined spectrophotometrically, and the content of cyanotoxins was estimated by liquid chromatography-mass spectrometry. Results. In September 2019, we studied the structural, quantitative and functional characteristics of phytoplankton in the bloom spot. The phytoplankton abundance was 198.712 mln cells/l, the biomass was 14.945 mg/l, and the concentration of chlorophyll a reached 215.3 μg/l, which corresponded to the β-eutrophic state of the ecosystem in the study area. It was revealed that cyanobacteria corresponded to 99.8% of the biomass and 96.7% of the abundance. The species of the genus Microcystis were dominant (42%). They are well-known potential producers of cyanobacterial hepatotoxins, in particular, microcystins. We established the presence of microcystins. Their intracellular and extracellular concentrations were equal and in total amounted to 12.56 μg/l. We also identified eight structural variants of microcystins; among those, [D-Asp3] MC-RR accounted for up to 90% of the total content. The most toxic MC-LR variant was present in trace amounts only in biomass. According to the WHO standards, the content of microcystins and the number of cyanobacterial cells in the Svyatozero Lake bloom spot corresponds to average danger in the case of recreational use and can pose a threat to human health. Conclusion. It is necessary to monitor the phytoplankton composition, the presence of potentially toxic cyanobacterial species and cyanotoxins, as well as the state of trout farmed in the waters of Svyatozero Lake, since cyanotoxins can accumulate in fish tissues.

Composition of biologically active substances of Vaccinium berries growing in the northwestern region of Russia

Using gas chromatography with preliminary derivatization of samples, the composition of the biologically active substances of wild-growing cranberries (Vaccinium oxycoccos L.) and lingonberries (Vaccinium vitis idaea L.) was studied. Biologically active substances contain phenolic compounds, tocopherols and phytosterols. Flavonoids prevail in the composition of phenolic compounds, the amount of which increases in berry press residues. Cranberries and lingonberries differ in the quantitative and qualitative composition of flavonoids and phenolic acids. In fresh cranberry berries, taxifolin and morin predominate among flavonoids; catechin and taxifolin predominate in lingonberries. In berry press residues, the number of flavonoids increases due to taxifolin and qercetin B, and in lingonberries, additionally due to catechin. Chlorogenic acid predominates in the composition of phenolic acids of fresh cranberries; 4-Oxybenzoic acid predominates in fresh lingonberries. Tocopherols quantitatively prevail in whole lingonberries, and phytosterols predominate in cranberries. In the berry press residues, their number increases.

Specific features of phytomass accumulation by soybean crops during the cultivation of varieties of the far eastern plant breeding in the northwestern region of Russia

Specific features of phytomass accumulation by soybean crops during the cultivation of varieties of the far eastern plant breeding in the northwestern region of Russia