Browsing by Author "Поспєлов, Сергій Вікторович"
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Item ACTIVITY OF LECTINS OF ST. JOHN’S WORT (HYPERICUM PERFORATUM L.) IN THE ONTOGENESIS(Винавництво ПНПУ ім. В.Г.Короленка, 2018-12) Семенко, Максим Васильович; Поспєлов, Сергій Вікторович; Оніпко, Валентина Володимирівна; Onipko, V. V.; Pospielov, S. V.У статті представлено результати досліджень гемаглютинуючої активності лектинів звіробою звичай- ного (Hypericum perforatum L.) в онтогенезі. Встановлено, що їх максимальна активність визначалась у період бутонізації та квітування. Високою активністю характеризувалися лектини листків протягом усього вегетаційного періоду (11,8 – 19,7 балів). У стеблах рівень аглютинінів зростав від періоду пагоноутворення (5,5 балів) до квітування (16,3 бали). В генеративних органах активність лектинів була максимальною (19,7– 23,3 бали). Зроблено висновок, що надземна частина, зібрана у період повного квітування, є джерелом аглютинінів високої біологічної активності.Item Adaptive Effect of Echinacea Extracts(2020-12) Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Здор, Вячеслав МиколайовичItem Agrobiological features and use of cornflower (Centaurae cyanus L.)(2022-05-20) Запорожець, Владислав Костянтинович; Поспєлов, Сергій ВікторовичItem Agrobiological features of St. John’s wort (Hypericum perforatum L.)(2022-05-20) Семенко, Максим Васильович; Поспєлов, Сергій ВікторовичItem Biocontrol of Mycoflora of Winter Wheat Seeds(2020-06) Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Коваленко, Нінель Павлівна; Шерстюк, Олена Леонідівна; Здор, Вячеслав МиколайовичPublication Biological mechanisms of invasiveness of Ambrosia artemisiifolia L. and innovative control approaches(2025-12-03) Оніпко, Валентина Володимирівна; Onipko, V. V.; Поспєлов, Сергій Вікторович; Pospelov, S. V.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Pospelova, H; Коваленко, Нінель Павлівна; Kovalenko, N. P.The purpose of the review was to summarize current scientific approaches to studying the biological mechanisms of invasiveness of Ambrosia artemisiifolia L., to identify ecological and agroeconomic risks associated with its spread, and to analyze innovative strategies for controlling this dangerous weed. Ambrosia artemisiifolia L. is one of the most aggressive invasive species of the Asteraceae family, posing a significant threat to agroecosystems, natural biodiversity, and human health. Its spread under conditions of trade globalization and climate change has reached a large scale, emphasizing the need for interdisciplinary research on the bioecological characteristics of this species and the development of comprehensive control strategies. The high invasive potential of A. artemisiifolia is determined by a complex of adaptive traits: rapid initial growth, tolerance to various soil types and climatic conditions, a powerful root system, cross-pollination, and pronounced seed heteromorphism. These features ensure the formation of persistent soil “seed banks” that support long-term population recovery even after mechanical or agronomic interventions. In addition, the considerable genetic variability of the species promotes local adaptation to changing climatic and anthropogenic factors, complicating control efforts across regions. It was emphasized that the expansion of ragweed in Europe and Asia leads to reduced crop yields, displacement of native species, and ecosystem degradation. Losses in the agricultural sector are associated with both direct decreases in the productivity of maize, sunflower, soybean, and other crops, and with increasing costs of herbicide application. However, chemical control is complicated by the development of resistance to major groups of herbicides. This underlines the relevance of integrated weed management approaches, that combine agronomic practices (crop rotation, optimization of sowing density, cultivation of competitive crops), biological control (entomophages, phytopathogens, microbial preparations), chemical methods, and environmentally safe technologies. A promising direction is the use of modern geographic information systems, remote sensing methods, and mathematical modeling to monitor the spread of A. artemisiifolia and predict its invasion dynamics under climate change. Such an approach makes it possible to identify priority control areas and effectively allocate resources. Further research should focus on improving adaptive integrated management systems for ragweed populations, assessing the long-term consequences of its invasion for biodiversity and human health, and developing ecologically oriented models of sustainable land use.Publication Comparative characteristics of morphometric indicators of quarantine species of the genus Cuscuta (Cuscuta L.) growing in Ukraine(2025-12-08) Коваленко, Нінель Павлівна; Kovalenko, N. P.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Самородов, Віктор Миколайович; Samorodov, V. M.; Поспєлов, Сергій Вікторович; Pospelov, S. V.; Pospielov, S.; Оніпко, Валентина Володимирівна; Onipko, V. V.A review is devoted to the comparative characteristics of the morphometric and biological features of doddlers in Ukraine based on a scientific source base. The systematic position of the common quarantine parasitic plants of the genus Cuscuta L. (dodder), commonly found in Ukraine, is presented. A morphometric analysis of 15 species is provided, highlighting differences in stem diameter, length, and color, features of the flower structure, types of inflorescences, and fruit shape. The literature data indicate a high degree of similarity among Cuscuta species prevalent in our country, which significantly complicates their identification in natural environments and agrocenoses, and is insufficient for clear and, more importantly, unmistakable identification by professionals in applied branches of the agricultural industry. Knowledge of the biological characteristics of Cuscuta species is important for understanding their spread and high naturalization potential. Currently, this information is quite fragmented and insufficiently studied. Information is presented regarding the most studied species, namely: C. campestris Yunck., C. trifolii Bab., C. europaea L., C. epilinum Weihe, C. Lemanniana Bge., C. lupuliformis Krock. and C. epithymym L. An important factor in the formation of the infectious background in agrocenoses and natural environments is the seed viability period. It has been established that the longest period of preservation of its viability is observed in C. trifolii Bab. (10-12 years); up to 6 years in C. campestris Yunck, C. europaea L., and C. Lemanniana Bge. The shortest viability period is up to one year (in the soil) in C. epilinum Weihe. However, there are reports about the possibility of preserving seed viability for up to 25–30 years under conditions unfavorable for its germination. In our opinion, this is due to such a phenomenon as "hardseededness". The formation of the seed bank in the soil is also influenced by the fertility of the species. Among the Cuscuta species growing in Ukraine, this indicator has been established only for seven species: C. campestris Yunck., C. trifolii Bab., C. europaea L., C epilinum Weihe, C. Lemanniana Bge., C. lupuliformis Krock., and C. epithymym L. The largest number of seeds per plant is produced by C. Lemanniana Bge. (up to 100.000) and C. campestris Yunck. (up to 114.000). The period of emergence of seedlings has been found to be March-May. It depends on the soil temperature and the depth of seed placement. It has been determined that at a soil temperature of 16–25 ⁰С, mass seed germination occurs in May-June. The flowering period is extended and lasts from June to August.Publication Correction of sowing quality of medicinal plants seeds with echinaceia extracts(2024) Pospielov, S. V.; Mishchenko, O. V.; Onipko, V. V.; Pospielova, G. D.; Поспєлов, Сергій Вікторович; Міщенко, Олег Вікторович; Оніпко, Валентина Володимирівна; Поспєлова, Ганна ДмитрівнаThe paper presents experimental data on the effect of echinacea extracts on the sowing qualities of medicinal herbs. The biological activity of extracts obtained from the areal part (EAP) and rhizomes with roots (ERS) of pale echinacea was investigated. The object of study was the sowing quality of the seeds of such medicinal plants as blue cornflower (Centaurea cyanus L.), purple echinacea (Echinacea purpurea (L. Moench.), pale echinacea (Echinacea pallida (Nutt.) Nutt.), St. John's wort (Hypericum perforatum L.), forest mallow (Malva sylvestris L.), which are of industrial importance for medicinal plants. The seeds were soaked in 0.01%-0.0001% solutions of extracts, under the control they were treated with water, after that they were germinated in Petri dishes by generally accepted methods according to the standards. The best results were obtained in mallow seed extracts. The solution of EAP at a concentration of 0.001% increased the energy of germination by 19.2% compared to the control, and when using ERS in all concentrations, a positive effect was obtained (by 18.2 %-23.6% to the control). Germination of variants treated with EAP solutions increased by 1.12-1.21 times, and ERS – by 1.09-1.21 times. Treatment of Echinacea purple seeds with EAP solutions was not effective, but rhizome extract treatment with roots had a positive effect on both germination energy and germination resulting 12.0%-17.3% and 8.3%-9.5% compared to the control, respectively. Similar regularities were observed in variants with the treatment of Echinacea seeds with extracts in different concentrations. The action of EAP solutions did not statistically exceed the control, but when using ERS, the results reliably exceeded the control by 10.8%-13.8% (germination energy) and by 11.0%- 17.8% (germination). Treatment of St. John's wort and cornflower seeds with extracts did not lead to changes in seed quality indicators. A general trend of greater activity of extracts in concentrations of 0.01%-0.001% was observed.Item Dependence of growth processes of Echinacea purpurea (L.) Moench. of the first year of vegetation on agrometeorological factors(2022-05-20) Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Поспєлов, Ілля СергійовичItem Echinacea in Ukraine: results of introduction and study of biology(1999) Самородов, Віктор Миколайович; Поспєлов, Сергій ВікторовичItem Efficiency of pre-sowing treatment of echinacea pale seeds on morphometric indicators of second year of vegetation plants.(2020-10) Григоришин, Єгор Володимирович; Поспєлов, Сергій Вікторович; Гордєєва, Олена ФедорівнаPublication Formation of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.) seed productivity in the conditions of the Left-Bank Forest-Steppe of Ukraine(2025-12-08) Поспєлов, Сергій Вікторович; Pospelov, S. V.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Zezekalo, Ye.; Оніпко, Валентина Володимирівна; Onipko, V. V.; Manachynskyi, O.The study results of seed productivity of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.), a promising medicinal and honey crop are presented. The research was conducted in the conditions of production plantations of Poltava region. It was established that at the early stages of ontogenesis, pale purple coneflower developed slowly: the first sprouts appeared 11–15 days after sowing and this period extended to 20–25 days. The cotyledon leaf phase lasted about for 7–9 days, and the first true leaf was formed during 25–32 days. The above-ground part and root system grew slowly in the first two months, their development accelerated from July. By the end of the vegetation, the plant formed a rosette of leaves and a fleshy vertically thickened rhizome. The generative period of pale purple coneflower began from the second year of growing season. Flowering lasted on the average for 46–52 days, starting in June. Plants reached a height of 85 cm, forming from 1 to 9 generative stems (on the average – 5.4). The average number of seeds per plant made 2770 pieces, and thousand-seed weight varied within 2.3–3.55 g. The morphometric study of the parameters of different orders’ inflorescences on the shoot shows that the anthodia of the first-fourth orders were characterized by the largest diameter (3.02–3.60 cm) and the height of the inflorescences (2.443.25 cm). The first three inflorescences provided 68 % of the total seeds’ weight from the plant, which indicates their highest productivity and value. It is emphasized that the sowing qualities of pale purple coneflower seeds are limited by a long period of organic dormancy. Laboratory germination of freshly harvested seeds from inflorescences of the first order did not exceed 60%, but of inflorescences of the second and third orders was 75–78 %. Infectious structures of five fungi genera (Alternaria, Cladosporium, Fusarium, Mucor, Stachybotrys) were found on the achenia. To increase germination, it is recommended to conduct stratification at a temperature of +4–5°C for at least 60 days. It was concluded that seed crops of pale purple coneflower can be used more rationally by harvesting inflorescences of the fourth and higher orders for pharmaceutical needs. Taking into account the biological characteristics of the crop will contribute to increasing the yield and ensuring the stable cultivation of this promising plant.Publication Formation of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.) seed productivity in the conditions of the Left-Bank Forest-Steppe of Ukraine(2025) Pospielov, S. V.; Pospielova, G. D.; Zezekalo, Ye.; Onipko, V. V.; Manachynskyi, O.; Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Зезекало, Є. О.; Оніпко, Валентина Володимирівна; Маначинський, О. І.The study results of seed productivity of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.), a promising medicinal and honey crop are presented. The research was conducted in the conditions of production plantations of Poltava region. It was established that at the early stages of ontogenesis, pale purple coneflower developed slowly: the first sprouts appeared 11–15 days after sowing and this period extended to 20–25 days. The cotyledon leaf phase lasted about for 7–9 days, and the first true leaf was formed during 25–32 days. The above-ground part and root system grew slowly in the first two months, their development accelerated from July. By the end of the vegetation, the plant formed a rosette of leaves and a fleshy vertically thickened rhizome. The generative period of pale purple coneflower began from the second year of growing season. Flowering lasted on the average for 46–52 days, starting in June. Plants reached a height of 85 cm, forming from 1 to 9 generative stems (on the average – 5.4). The average number of seeds per plant made 2770 pieces, and thousand-seed weight varied within 2.3–3.55 g. The morphometric study of the parameters of different orders’ inflorescences on the shoot shows that the anthodia of the first-fourth orders were characterized by the largest diameter (3.02–3.60 cm) and the height of the inflorescences (2.44–3.25 cm). The first three inflorescences provided 68 % of the total seeds’ weight from the plant, which indicates their highest productivity and value. It is emphasized that the sowing qualities of pale purple coneflower seeds are limited by a long period of organic dormancy. Laboratory germination of freshly harvested seeds from inflorescences of the first order did not exceed 60%, but of inflorescences of the second and third orders was 75–78 %. Infectious structures of five fungi genera (Alternaria, Cladosporium, Fusarium, Mucor, Stachybotrys) were found on the achenia. To increase germination, it is recommended to conduct stratification at a temperature of +4–5°C for at least 60 days. It was concluded that seed crops of pale purple coneflower can be used more rationally by harvesting inflorescences of the fourth and higher orders for pharmaceutical needs. Taking into account the biological characteristics of the crop will contribute to increasing the yield and ensuring the stable cultivation of this promising plant.Item Fungistatic Properties of Lectin-containing Extracts of Medicinal Plants(2019) Поспєлов, Сергій Вікторович; Поспєлова, Ганна ДмитрівнаItem Genus Echinacea Moench. in Ukraine: sixty-year experience of studying and using(2004-09) Самородов, Віктор Миколайович; Поспєлов, Сергій ВікторовичItem Isolation of Lectin from the seeds Hippophae rhamnoides(1990) Самородов, Віктор Миколайович; Поспєлов, Сергій Вікторович; Голинська, Євгенія ЛьвовнаItem Lectins of soil: isolation and possible function(1990) Поспєлов, Сергій Вікторович; Самородов, Віктор МиколайовичItem Model of creation of productive agrocenosis of Echinacea(2020-11) Поспєлов, Сергій Вікторович; Здор, Вячеслав Миколайович; Міщенко, Олег Вікторович; Поспєлова, Ганна Дмитрівна; Коваленко, Нінель ПавлівнаItem Pale-purple coneflower (Echinacea pallida (Nutt.) Nutt.) in Ukraine: particularities of biology, growing and quality of raw material(2004-09) Поспєлов, Сергій Вікторович; Самородов, Віктор МиколайовичItem Particular features of growing Echinacea in Ukraine and adjustment of raw material quality(1999-06) Поспєлов, Сергій Вікторович; Самородов, Віктор Миколайович