Development of a new variety of spring canola for the conditions of Western Siberia

One of the forgotten crops is turnip, which originates from Western Asia. It belongs to the oldest vegetable plants and has been cultivated by man for over 4 thousand years. Successful cultivation of turnip is possible if the elements of cultivation technology are observed. Therefore, the purpose of the research was to establish the optimal sowing dates of turnip seeds and their impact on plant productivity and quality indicators of the root crop in open ground conditions. The research was conducted in 2023–2024 in the conditions of Western Polissya of Ukraine. Turnip seeds were sown in the 2nd and 3rd decades of April, and the 1st, 2nd and 3rd decades of May. The varieties Zolota Kulya, Purpurlepop, Purpurova and Geisha were used in the experiment. The control was the variant in which the seeds of the Zolota Kulya variety were sown in the 2nd decade of April using a wide-row method with a row spacing of 45 cm. The experiment determined the duration of interphase periods of growth and development of turnip varieties, the mass of leaves and turnip roots, the total yield of root crops and their quality depending on the time of sowing seeds. The study was carried out in three replicates using the randomized block method. As a result of growing turnips, it was found that at early sowing dates (the second and third decades of April), the germination period is shorter, and at sowing seeds at later dates, the germination period is extended and ranges from 8 to 9 days. When sowing turnip seeds in the third decade of April, there is a more active growth of root crops; when sowing in the first and second decades of May, active plant growth and root crop development are observed; when sowing seeds in the third decade of May, better development of the leaf surface is established. The largest mass of root crops is characterized by the turnip variety Purpulepop (388.3 g) when sowing seeds in the second decade of April. The optimal seed sowing date, which contributes to obtaining a higher yield of turnips, is the second and third decades of April, where the value can vary from 23.8 t/ha to 24.9 t/ha of root crops. When sowing seeds in the first and third decades of May, the yield of turnip roots decreases. The highest yield of root crops is characterized by the turnip variety Purpulepop 24.9 t/ha and 24.6 t/ha, which exceeds the yield of the Zolota Kulya variety by 1.5 and 1.2 t/ha, respectively. The highest dry matter content is possible when sowing seeds in the first decade of May for all turnip varieties - (18.89 − 19.51 %), with the varieties Purpurova (19.51 %) and Geisha (18.89 %) standing out; the highest sugar content (10.66 and 11.34%) or an increase of 2.88 % and 2.2 % is possible for early sowing dates (second and third decades of April) for the Purpurova variety; an increase in protein content by 12% is possible for the Zolota Kulya variety when sowing seeds in the third decade of April, and an approximate value is characterized by the Purpulepop varieties (6.63%) when sowing seeds in the second decade of May and the Purpurova variety - 6.61% (third decade of April); vitamin C in root crops can increase by 7-10% for the Purpulepop and Purpurova varieties, the seeds of which should be sown in the second-third decade of April and the first decade of May.

The cultivation of green beans is restrained, first of all, by the lack of adapted elements of cultivation technology. In order to realize the biological potential of green beans in the soil and climatic conditions of the Right Bank Forest Steppe of Ukraine, the varietal characteristics of the plant and compliance with the elements of technology are important, namely: pre-sowing preparation of seed material, the timing of sowing in open ground, and the fight against pests. In the State register of plant varieties suitable for distribution in Ukraine, 68 varieties suitable for cultivation in open and closed soil are registered. All varieties are characterized by a high content of important biochemical compounds and are divided by the degree of ripeness into early, medium and late. Modern farms are interested in the use of promising varieties, and therefore there is a need for their brief detailing. In the forest-steppe zone of the right bank of Ukraine, the varieties Ros, Slavia, Galactica, Lastivka, and White Yas should be considered the most promising for growing green beans. The specified varieties contain a high protein content, and therefore their introduction into production can ensure the collection of protein at the level of 0.57-1.11 t/ha with a total yield of 2.0-4.0 t/ha, provided that the main elements of the technology are observed. Sowing dates are determined, first of all, by the temperature and humidity of the soil. The first term is established after the end of spring frosts, when the temperature of +10...+12 ºС is reached at a depth of 8-10 cm in the soil. In the forest-steppe zone of Ukraine, beans are approximately sown on May 5-15, in Polissia - on May 5-20, in the steppe zone - on April 20-May 15. For rapid seed germination and intensive plant growth and development, the best soil moisture is 75-80% RH. With a lack of moisture, the seeds germinate slowly, seedlings will be uneven, the growth and development of plants slows down, and in dry weather, dwarf plants are formed. Obtaining high-quality products is possible with proper control of weeds, pests and diseases. The most common diseases of beans are anthracnose, root rot, fusarium, alternaria, and bacteriosis. The primary element in the fight against diseases is to observe crop rotation and sowing with high-quality seeds. If necessary, spraying is carried out during the growing season with preparations based on azoxystrobin or tebuconazole. Among the biofungicides, you can use FitoHelp or MycoHelp. The main pest of green beans is considered to be bean weevil, to prevent the spread of which crops should be treated with insecticides with the active substances lambda-cyhalothrin or bifenthrin at the beginning of flowering and after 8-10 days, or use bioinsecticides Actoverm formula or Actoverm 1.8%.

In Ukraine, grain sorghum is an important grain crop used in bioethanol and solid fuel production. It stands out signifcantly from other grain crops by its economically valuable features, drought resistance, high productivity and universality of use. Grain sorghum is grown for use in the food industry (the main processed products are sorghum starch, glucosefructose syrups, alcohol, etc.), in fodder production and, more recently, in the energy industry. Therefore, the research of the elements of the cultivation technology, namely the sowing time and the depth of planting of grain sorghum seeds, is expedient and perspective. The article highlights the research results of the influence of the sowing time and the depth of planting seeds on the energy productivity of sorghum crops of the grain varieties ‘Dniprovskyi 39’ and ‘Vinets’ in the Right-Bank ForestSteppe of Ukraine. The purpose of the research is to establish the optimal sowing time and the depth of planting of grain sorghum seeds and to substantiate their influence on the crop energy productivity in condition of the Right-Bank Forest-Steppe of Ukraine. The research was conducted during 2016–2020 at the Bilotserkivska Research Station of the Institute of Bioenergy Crops and Sugar Beet of the National Academy of Sciences of Ukraine. It was found that the highest crop yield was obtained by sowing grain sorghum seeds in the 1st decade of May at a planting depth of 4–6 cm. At the same time, the grain yield of the ‘Dniprovskyi 39’ variety was 7.1–7.4 t/ha, of the ‘Vinets’ variety – 6.3–6.7 t/ha; the yield of biomass of the ‘Dniprovskyi 39’ variety was 40.2–44.4 t/ha, of the ‘Vinets’ variety – 37.3–39.5 t/ha. The highest bioethanol yield was obtained by sowing grain sorghum seeds in the 1st decade of May at a depth of planting of seeds of 4–6 cm. Cultivation of the ‘Dniprovskyi 39’ variety allowed to obtain 2.37–2.47 t/ha of bioethanol, the ‘Vinets’ variety – 2.08–2,21 t/ha. The yield of solid biofuel in this variant of the experiment was also the largest and amounted to 9.29–10.26 t/ha for the ‘Dniprovskyi 39’ variety and 8.62–9.12 t/ha for the ‘Vinets’ variety. The total energy yield from the obtained biofuel of the ‘Dniprovskyi 39’ variety was 210.66–228.98 GJ/ha, of the ‘Vinets’ variety – 192.37–203.95 GJ/ha. Key words: grain sorghum, varieties, sowing time, seeding depth, energy productivity.

Within the sector of fruit growing, climate change related tasks cover a rather wide range of activities. According to what is claimed by the literature, all decisions impacting the sector should be made conformably with climate change in order to advance an increase in yield security. This, regardless of the impacts of climate change, is also one of the key questions in fruit growing. Regarding protection against extreme weather events, in addition to technological and technical elements, the level of importance assumed by farmers for the abovementioned protection techniques as well as the type and extent they intend to use of this in practice are also worth of studying. This ongoing research beginning in 2009 mainly focuses on studying the opinions of fruit farmers making up the target group for this analysis. The questionnaire survey primarily intends to study their knowledge on the definition of climate change as reactivity to unfavourable weather events occurring in the growing. The study aims at providing a realistic view on the fruit-farmers’ knowledge on climate change and on how technological elements, new technical solutions applicable to mitigate damage are used during production.

Purpose. To study the varietal peculiarities of the buckwheat ( Fagopyrum esculentum Moench) productivity formation in the conditions of unstable hydration of the Central Forest-Steppe zone of Ukraine, depending on the timing and methods of sowing. Methods. During 2015–2017, at the Ustymivka Experimental Station of Plant Production (Yuriev Plant Production Institute, NAAS of Ukraine) 6 varieties of buckwheat: ‘Yaroslavna’, ‘Slobozhanka’, ‘Ruslana’, ‘Ukrainka’, ‘Krupynka’, ‘SIN 3/02’ were studied. Buckwheat was sowed at a rate of 250 grains/m 2 by wide (row spacing – 45 cm) and usual row (15 cm) methods into 3 steps with 5 days intervals: 5–6 May (soil temperature 14.5–16.6 °C), 10–11 and 15–16 May (16.4–19.1 and 16.9–17.3 °C correspondently). Results. The results of the three-year experiment indicate a significant impact of the factors (variety, timing and method of sowing) on the buckwheat productivity formation, which varied in a rather wide range: the number of grains on one plant varied from 2.8 to 17.4 pcs.; the weight of 1000 grains – up to 2.4 g; yield – from 0.1 to 1.2 t/ha; and in higher degree depended on the weather conditions in the spring period. The arid conditions at the beginning of the vegetation phase reduced the grain size and number on the plants that caused a decrease in yield, while more humid conditions increased these rates. At the same time, the varie­ties ‘SIN-3/02’ and ‘Krupynka’ in the dry conditions of 2017 showed increased yields in the case of sowing in the usual routine manner. In previous years they provided higher yields for wide-row sowing, while in unfavorable conditions for growth and development, the usual routine method was more suitable, and the term of sowing did not have a significant impact on this. The terms of sowing with the intervals in 5 days, can not mitigate the negative effects of weather conditions, in general. The method of sowing is an effective factor for high buckwheat productivity and yield formation that to a certain degree depends on biological characteristics of the variety. Conclusions. Among the studied buckwheat varieties, the ‘Yaroslavna’ variety characterized by the highest yield in case of wide-row sowing in the first decade of May (5–6.05). These elements of cultivation technology were better for the varieties ‘Slobozhanka’ and ‘Ruslana’. The second term of sowing (May 10–11) is more favorable for the varieties ‘SIN-3/02’ and ‘Ukrainka’ with the wide-row sowing. Buckwheat ‘Krupynka’ provided the highest yield with wide-row sowing in the first or second decade of May. In the case of sowing in the third term (15–16.05) all the varieties characterized by reduced productivity in comparison with other terms and methods of sowing

Due to global and rapid changes in climatic conditions for the cultivation of major crops, there is an urgent need for the selection of adaptive varieties that will not reduce their productivity. In modern agricultural production, the variety is the biological foundation on which all elements of cultivation technology are based. If you choose the right variety, it will enhance the effect of other factors. Conversely, if the manufacturer makes a mistake with the chosen variety, it will weaken the effect of all other factors. In agricultural production, it is difficult to predict the outcome, because the existing approaches to soybean cultivation are 70% dependent on soil and climatic conditions. To solve this problem, you need to carefully select adaptive varieties of soybeans. In Ukraine, a fairly large range of soybeans of different maturity groups. In conditions of intensive agriculture with extreme weather conditions, it is important to grow several varieties of different maturity groups on farms. The article highlights the results of the analysis of the State Register of plant varieties suitable for distribution in Ukraine, as well as analysis of research by other scientists on the basis of which we chose two adaptive varieties of different maturity groups with genetic potential of 4-5 t / ha Ukrainian and foreign selection: Ukrainian ( early-ripening variety Nugget) and Canadian selection (early-ripening variety Amadeus). These varieties are adapted for growing in the Forest-Steppe zone, have high resistance to lodging and shedding. Resistant to soil moisture deficiency, high temperatures and drought-resistant in summer, which is relevant in climate change. The height of attachment of the lower beans in the nuggets Nuggets and Amadeus 13 cm, which determines its suitability for full mechanized cultivation from sowing to harvesting. Phenological observations of seedlings of the studied varieties according to the scheme: Factor A - variety: Nugget, Amadeus. Factor B - inoculation. Factor B - foliar feeding. The experiment was laid on the experimental site of 0.06 ha. The seeds were treated with BTU-t Bioinoculant at the rate of 3 kg / t of seeds, the control was not processed. After the mass emergence of seedlings, it was found that the seeds treated with bioinoculants came out a little later than the control, because bacteria slow down the germination of seeds.

Relevance. For the manufacture of high-quality pasta, durum wheat grain is used. Improving the productivity of hard spring wheat is an urgent task. The formation of a powerful root system is the key to the full supply of nutrients and plastic substances to the plant. Increased productivity, the number of spikebearing shoots. Plants become more resistant to adverse environmental factors, which is important for spring durum wheat, which is more demanding than spring soft wheat. The timing of sowing and especially the application of mineral fertilizers are a significant factor affecting not only the formation of individual elements of the crop structure, which subsequently form the productivity of plants, but also the formation of the root system. To do this, it is necessary to choose the optimal sowing time, at which the critical phases of plant development fall under the most favorable agrometeorological conditions and the formation of the most powerful root system.Results. The conducted studies allow us to recommend the most optimal terms of sowing and the use of fertilizers to ensure the efficiency of growing durum spring wheat. In dry conditions, when sowing crops without applying fertilizers, sowing in the second ten days of May is most effective. If it is possible to apply nitrogen fertilizers and nitrogen-phosphorus fertilizers, it is better to sow durum spring wheat in the second and third decades of May.

The article offers an assessment of the effectiveness of the Clearfield system in the technology of cultivation of spring rapeseed hybrid NIKSH 213 KLS and sunflower hybrid NK Neoma, taking into account different precursors in the Non-Chernozem zone. The study was conducted in the conditions of the economy of LLC “Flame” of the Korablinsky district of the Ryazan region, in 2021–2023. Clearfield is a universal production system currently used worldwide, which involves the use of modern high-yielding hybrids resistant to selective herbicide. A single application of herbicides of this system allows you to create a soil herbicide screen that restrains subsequent waves of weeds. The conducted studies allowed us to establish that the post-emergence use of herbicides in combination with an adhesive in oilseed crops destroyed 100% annual dicotyledonous weeds such as the common mountaineer, rough mountaineer. Cultivation of rapeseed and sunflower using Clearfield technology provided clean crops of these crops, and additional foliar treatment of plants with fertilizers created favorable conditions for additional formation of elements of the crop structure. The maximum yield of spring rapeseed over the years of research was recorded on the Lebozol-RAPSMIX variant of 21.4–24.2 c/ha (winter wheat) and 21.9-26.3 (spring wheat), the excess relative to the untreated variant was 21.7 % (+4.2 c/ha) and 25.7 % (+5.0 c/ha), respectively. On average, according to the experience with sunflower, the maximum yield was noted on variants with the effect of non-root top dressing Lebozol-expert–Opti Care – 32.5 c/ha against the background of the predecessor of winter wheat (an increase of + 3.8 c/ha), and 30.7 c/ha against the background of spring wheat (+3.3 c/ha).

Purpose. To study the influence of fertilization and seed inoculation systems on biometric indicators of corn, elements of the crop structure and corn grain yield. Methods. The study used methods of system analysis, field, laboratory, computational, comparative and statistical methods. Results. The results of the studies indicate that the agrotechnical cultivation methods studied had a positive effect on the formation of biometric indicators, elements of the crop structure and grain yield of the hybrid DKS 3972 (FAO – 300) corn. Among the studied variants, the largest linear dimensions of corn plants were noted in variants where the Biostim Forte inoculant (0.15 l/ha) was used as a pre-sowing seed treatment on the background of N92 + N12P24K12S8.5. At the pre-sowing treatment of seeds with Biostim corn inoculant (0.05 kg/p.o.), the height of the plants was slightly lower – 232 cm. It was recorded that the density of corn plants before harvesting ranged from 61.2 to 66.6 thousand pcs./ha. According to the biometric analysis conducted, no significant difference was found in the number of grains in a row and the number of rows of grains regardless to the pre sowing treatment with Biostim corn or Biostim Forte inoculants. The maximum number of grains in a row of corn cob was 36 pcs. in variants where the Biostim Forte inoculant (0.15 l/ha) was used as pre-sowing treatment of seeds on the background of N92 + N12P24K12S8.5. It was proven that the studied elements of intensification of cultivation technology also significantly affected the number of cobs per unit of area. The maximum grain yield of hybrid corn DKS 3972 (11.91 t/ha) was obtained in variants where inoculant Biostim Forte (0.15 l/ha) on the background of N92 + N12P24K12S8.5 were used in the pre-sowing seed treatment. Conclusions. In conditions of the Right-Bank Forest-Steppe, in order to obtain the maximum grain yield of hybrid corn DKS 3972 (FAO – 300), the developed elements of the cultivation technology should be taken into account, namely, the inoculant Biostim Forte (0.15 l/ha) on the background of N92 + N12P24K12S8.5 should be used in the pre-sowing seed treatment. This will ensure the grain yield at the level of 11.91 t/ha with the most significant increase compared to the control – 41,5% (+3,49 t/ha).

У статті розглянуто фенологічні особливості в’язового листоїда Galerucella luteola Mül. на підставі дворічних (2018–2019 рр.) спостережень у насадженнях м. Харків та у лабораторних умовах. Залежно від погодних умов у Харкові можуть розвиватися 2–3 покоління жуків в’язового листоїда на рік. Жуки зимують у щілинах кори, дуплах чи в підстилці. Із місць зимівлі виходять під час розпускання листя на в’язах (наприкінці квітня –початку травня). Період відкладання яєць є подовженим, покоління перекриваються. Розвиток яєць триває 6–10 діб, личинок – 18–29, лялечок – близько 10 діб. За результатами проведених спостережень складено фенологічний календар.

Topicality. Recently, attention is being increasingly focused on the search for energy resources produced from renewable energy sources, namely from plant raw materials. There are increasingly relevant studies on the influence of elements of cultivation technology, in particular, seeding rates, on the formation of productivity of common bicolour sorghum and soryz used for biofuel production. There are increasingly relevant studies on the influence of elements of cultivation technology, in particular, seeding rates, on the formation of productivity of common bicolour sorghum and soryz used for biofuel production. In the eastern Forest-Steppe of Ukraine, the productivity of these crops largely depends on the variety, environmental conditions and elements of cultivation technology. Optimisation of seeding rates is one of the ways to increase grain and biomass yield and biofuel and energy output. Purpose. Our research aimed to determine the impact of sowing rates on the energy productivity of common bicolour sorghum and soryz in the conditions of the eastern Forest Steppe of Ukraine. Methods. In 2016–2020, the research was carried out at the Ivanivka Research and Breeding Station of the Institute of Bioenergy Crops and Sugar Beet of NAAS in the unstable moisture zone of the eastern Forest-Steppe of Ukraine The experimental design included: factor A – varieties Dniprovskyi 39 (common bicolour sorghum) and Samaran 6 (soryz); factor B - seeding rates: 1) 150 ths. pcs/ha; 2) 200 ths. pcs/ha; 250 ths. pcs/ha. Results. It was found that the different seeding rates have an impact on grain and biomass yield of sorghum and soryz, respectively, and on the estimated yield of bioethanol from grain, solid fuel yield from aboveground mass and total energy output. The maximum grain and biomass yield was obtained at a seeding rate of 200 ths. pcs/ha and was 6.8 and 39.2 t/ha for common bicoloured sorghum of Dniprovskyi 39 variety and 5.9 and 36.1 t/ha for soryz of Samaran 6 variety. Conclusions. Dneprovsky 39 variety provided the highest output of bioethanol (2.24 t/ha) and energy (56.04 GJ/ha), and Samaran 6 variety – 1.95 t/ha and 48.63 GJ/ha, respectively. Sorghum has the highest output of solid fuel and energy – 9.06 t/ha and 147.6 GJ/ha, and soryz – 8.34 t/ha and 135.93 GJ/ha, respectively. For the production of biofuel and energy resources, the cultivation of common bicolour sorghum with a seeding rate of 200 ths. pcs/ha is more efficient. Key words: variety, yield, grain, biomass, bioethanol, solid fuel, energy

Purpose. Study of the formation of height, shoot growth and volume of currant bush depending on the elements of agricultural technology.Methods. Field, physical, analytical, statistical.Results. It is found that the height of plants, shoot growth and volume of currant bush vary significantly depending on the elements of agricultural technology and weather conditions. The highest currant plants were in keeping the rows under clean steam and mulching bushy strips of straw, which grew from 1.15 m in the fertilizer-free version to 1.36 m in the background + River 3 % or 18 %. The planting of rows of currant plantations significantly reduced plant height. However, the trend of mulching and fertilization on this indicator was similar. The greatest influence on plant height during fertilizer application was found by holding the bridle strips by mulching the film. Yes, the height increased from 0.75 m in the version without fertilizer to 1.10 – with the introduction of N60P90K90 and up to 1.21 m – in the background + River 3 %. The optimal growth of currant shoots provides mulching of bush strips of straw on the background of complete mineral fertilizer with foliar fertilization Riverm 3% for keeping the rows under clean steam.Conclusions. Plant height, shoot growth and volume of currant bush vary significantly depending on the elements of agricultural technology and weather conditions. The retention of soil in the rows most influences the growth of shoots of black currant plants. For keeping the soil under clean steam, shoot growth is 7.5–24.0 m, height is 1.08–1.29 m, volume of the bush is 0.85–1.22 m3, depending on the application of fertilizers. In case of leaching, the parameters of the currant bush are 6.0–15.2 m, 0.76–1.22 m, 0.65–0.99 m3, respectively. Fertilizer application allows for an increase in shoot growth by 16.5 m for keeping the soil in the row under clean steam and by 9.2 m for leaching. For black currant farming, it is optimal to keep the row spacing clean with N60P90K90 + River 3 %.

Abstract. Nowadays, during the period of the global climate change, scientists around the world have noticed an increased incidence of extreme natural disasters. The authors of the study suggested methods of using climate change as a part of a genetic model of maximal floods runoff. This model makes possible the introducing of “climate changes” directly through the maximal stocks of snow and precipitation during the spring flood and runoff coefficients. The object of study is the basin of the Southern Bug – one of the largest rivers in Ukraine, which flows within two geographical zones – forest-steppe and steppe. Overall results using scenario RCP 4.5 showed a decrease of runoff by the end of 2050 from 20 % in the north part of the basin (the forest-steppe zone) to 50 % – in the south (the steppe part of basin). On the other hand, the characteristics of minimal river flow in the Southern Bug basin – winter and summer low waters had been analyzed. One option for low water flow simulation is to study the connection between the drought index (e.g. SPEI) and the minimal water. Studies show that such correlation exists, so knowing the forecast of drought index it is possible to project the value of minimal water discharge, which is the object of the research.

Purpose. Determine the main indicators of productivity and quality of seeds of spring rapeseed new varieties during their cultivation in different argoclimatic zones of Ukraine. Methods. Field, laboratory. Field studies were carried out on the basis of the Branches of the Ukrainian Institute for Plant Variety Examination in the zones of Polissia, Forest-Steppe and Steppe in 2015–2016. Results. The State Regis­ter of Plant Varieties Suitable for Distribution in Ukraine (the Register of Plant Varieties of Ukraine) as at 22 August 2019 contains 60 varieties of spring rapeseed, of which 42 (70.0%) are of foreign origin and 18 (30.0%) are Ukrainian cultivars. The maximum sown area in Ukraine occupied by spring rapeseed was about 68.3 thousand ha in 2018, which is twice as much as the area of 2013. In 2019, a dramatic decrease in sown area was observed. The productivity of the studied rapeseed varieties in 2015–2016 in the Steppe zone was on average 0.94–1.17 t/ha; Forest-steppe – 2.16–2.29; Polissia – 1.33–1.62. The yields of individual varieties exceeded 2.0 t/ha; they had a high content of oil and crude protein and a low content of erucic acid and glucosinolates in the seeds. The content of erucic acid did not exceed 0.1%, glucosinolates – 0.8%. Conclusions. The highest yield in the zones of Forest-Steppe and Polissia was observed from ‘DK 7160 KL’ variety – 2.28 t/ha and 1.62 t/ha, respectively. The maximum crude protein content in the steppe zone was found in ‘Aksana’ variety (26.6%), in the Forest-steppe zone – in ‘Bilder’ (25.4%,) in the Polissia zone – in ‘Sander’ (24.9%). High oil content in seeds in the Steppe zone was in varieties ‘Bilder’ (45.0%) and ‘DK 7155 KL’ (45.2%), in the Forest-Steppe – in ‘Sander’ (46.5%) and ‘DK 7155 KL’ (46.6%); in Polissia – in ‘DK 7160 KL’ (47.1%) and ‘DK 7155 KL’ (46.8%). The minimum content of erucic acid in the seeds of spring rapeseed in the Steppe was in the varieties ‘Aksana’ and ‘DK 7150 KL’, in the Forest-Steppe – ‘GK 7160 KL’, ‘CLICK KL’, ‘DK 7155 KL’ and in the Polissia zone – ‘DK 7160 KL’ and ‘DK 7150 KL’.

It was studied that the dynamics of phenophases, the dates of the beginning and duration of phenological cycles in plants are under the constant influence of seasonal changes in climatic conditions (regular alternation of seasons with different durations of day and night, warm or cold and rainy or dry seasons). Together with the study of the shoot growth duration, it is worth conducting a study of the dynamics of their growth. This is also important for determining the tolerance for winter conditions, since it is known, that not only those shoots that finish growing early but also those that grow for a long time, but rather slowly, can be winter resistant. The intensive growth of shoots of all studied species occurs in May to mid-June. Almost all of them have two peaks of shoot growth: June and mid-July. The growth of shoots has a certain dependence on air temperature. The conducted long-term phenological observations made it possible to establish the periods of phenophases in five species of shrubs and show that in the conditions of the Right-Bank Forest-Steppe, all of them manage to complete their vegetation in time, before the beginning of frost. Among the studied species, Lonicera tatarica L. and Viburnum lantana L. were the first to start their shoot growth in the first decade of May. Then, in the third decade of May, shoots of E. europaeus began to grow. P. spinosa and R. canina were the last to start their shoot growth. The conducted research has a certain significance for forest reclamation work as these types of shrubs are used to create protective plantings. Establishing a certain dependence on air temperature will allow to adjust the species composition and their number when creating this type of plantation.