„yield“ 84 výsledků

The late planting of onions practiced by farmers has decreased the yield and quality of onion seed. This experiment was conducted during 2019 and 2020 at agricultural research farm of Kabul University to study the effect of mother bulb production conditions on subsequent plant growth and seed yield and quality. The study was designed in Randomized Complete Block Design and data for different agronomic traits, flowering habits, seed yield and seed quality were recorded. The recorded data were statistically analyzed with STAR software. The highest leaf area per plant (994.38 cm2) and leaf area index (0.83) were recorded for the plants obtained from mother bulbs grown on 10th March in deep ploughed flat beds. The highest number of flowering stalks per plant (3.83) was recorded for the plants produced from the mother bulbs grown on 10th March in shallow ploughed double row raised beds, it was on far with the plants obtained from the mother bulbs grown on 10th March in deep ploughed flat beds. The highest seed yield (737.27 Kg/Ha) was recorded for the plants obtained from mother bulbs grown on 10th March in shallow ploughed flat beds. This was on far with the seed yield of the plants obtained from the mother bulbs grown on 10th March in deep ploughed flat beds. The results reveal that, mother bulbs produced under early planting dates and deep ploughed flat-bed conditions are more appropriate to produce vigorous plants and higher seed yield of onion.

Developments in sequencing and SNP chip technologies have enabled scientists to obtain high-density genomic data from different livestock species, including cattle. Moreover, many bioinformatics tools are available to analyse high-density genomic data. Via these tools, several statistical approaches such as Principal Component Analysis and clusterin-based analyses could be conducted to reveal the genetic structure of cattle populations. However, revealing the genetic structure and selection signatures of Turkish cattle breeds is a new area of research, since the previous studies are limited with a few microsatellite data. On the other hand, rearing in different geographical and environmental conditions for a long period could possibly lead to more genetic variation in native Turkish cattle breeds compared to high-yielding culture breeds. These variations obviously cannot be detected by limited number of microsatellite markers, while Next Generation Sequencing is promising for further population structure studies. Hence this review aims to summarise previous studies and give a perspective of Next Generation Sequencing possibilities to reveal the population structure of Turkish cattle for further studies.

The aim of the experiment was to evaluate the impact of the year and different cultivation technologies on the yield and oil content of selected sunflower hybrids. The experiment was carried out in the years 2019 – 2020 in the fields of the Research Centre for Plant Biology and Ecology in Nitra – Dolná Malanta. Statistical analysis of experimental results confirmed the high significant influence of the year on selected quantitative and qualitative parameters of the sunflower. The year 2019 was statistically high significantly more effective for seed yield (increase by 0.37 t.ha-1). In 2020 was confirmed a statistically high significant higher oil content by 0.87%. The evaluation of the genetic potential of selected hybrids confirmed a statistically high significant effect on the yield and oil content of sunflower. Within the monitored years, the average seed yield was 3.47 t.ha-1and the average oil content was 46.22%. In the range of monitored hybrids, within the individual types of cultivation technology, the highest average seed yields and oil content were recorded for the Clearfield Plus technology. The best values were achieved by the SY Bacardi hybrid with a seed yield of 4.10 t.ha-1(+ 0.63 t.ha-1; rel. 18.29%) and with an oil content of 48.50% (+ 2.28%). The highest seed yield in conventional technology achieved SY Chronos hybrid 3.63 t.ha-1(+ 0.16 t.ha-1; rel. 4.69%) and the highest oil content achieved SY Duomo hybrid 47.34% (+ 1.13%). The highest yield in Express Sun technology recorded NX 92251 hybrid 3.56 t.ha-1(+ 0.10 t.ha-1; rel. 2.76%). And the highest oil content was by Suffix hybrid 45.91% (- 0.31%).

The aim of the work was to analyse the impact of different intensities of grassland exploitation on the productive capacity in the context of declining livestock numbers and the need for temporary or permanent extensification. The research was carried out in 2017-2020 in the locality of Žirany in the Nitra district, located in the temperate zone at the boundary between the continental and Atlantic-continental regions. Average annual temperatures are around 9 °C. The original semi-natural vegetation has been used for sheep grazing for many years. There were 8 experimental variants of use/cutting with different intensity of exploitation: var. 1 - abandoned unused, var. 2 - 3x per year, var. 3 - 2x per year, var. 4 - 1x per year, var. 5 - 4x - 3x - 2x - 2x - 1x per year, var. 6 - 1x - 2x - 3x - 4x per year, var. 7 - 3x - 1x - 1x - 3x and var. 8 - 2x - 1x - 1x - 1x - 2x. By comparing the sum of yields for the entire 4-year annual cycle, we concluded that, with the exception of the 1x annually mowed variant, all the others differentiated themselves from the abandoned stand by their increased production capacity. We also observed differentiation between fertilized and exploited variants into groups. The stand mowed 3 times annually (variant 2, 29.07 t ha-1) was shown to be the most productive. The second group consisted of variants with production lower in the sum of 4 years by about 5 t ha-1 (3, 5, and 6). The same level of lower yield was then found on stands with temporarily reduced intensity of use (variants 7 and 8). In the effectiveness of applied nutrients on production growth, it was found that as the number of applications increased, nutrient use also increased. The average of the years in the overall assessment of the 4-year cycle showed the dynamics from the individual years and also confirmed the tendency of the highest nutrient use at a stable 3-cut use.

Drought is the major bottleneck for food security worldwide. Identifying reliable selection traits that sustain plant growth and productivity under water-deficient conditions is essential for releasing resilient drought tolerant wheat genotypes. Herein, in order to identify the best combination of drought tolerance related-traits, this study was carried out to assess the effect of 21 shoot and 17 root secondary traits on grain yield of 40 bread wheat genotypes from germination to maturity stages under laboratory, greenhouse and field conditions. In this research, germination rate (GR), mean germination time (MGT), roots weight (RW), roots number (RN) and Root : Shoot ratio (R/S) were relevant for discriminating drought tolerant genotypes, expressing negative moderate correlation (r~-0.5) and explaining a significant part of yield variation (8 to 30%). Grain number (GN) was the most important agronomic trait (r~0.70-0.94) which explained up to 88 % of yield variation. This latter effect is reinforced by the indirect effects of productive spikes number (FSN), thousand kernel weight (TKW) and grains number per fertile spike (GNFS). The biomass (BY), ground cover (GC), spike (SL) and pedoncule lengths (PL) were also relevant, especially under severe stress (r=0.4-0.6 ; β=0.33-0.40) ; while the canopy temperature depression (CTD) was determinant under moderate stress (r=-0.45 ; β=-0.46). Combined selection for these traits will be effective to improve the process of developing high-yielding bread wheat varieties adapted to drought prone areas.

The critical period of weed interference in groundnut was investigated in 2018 and 2019 early cropping seasons at the Federal University of Agriculture, Abeokuta, Ogun State, Nigeria. The experiment consisted of ten treatments arranged in a randomized complete block design and replicated three times. Treatments includes keeping plots weed free initially for 3, 6, 9, 12, 15 weeks after planting (WAP) and keeping plots weed infested initially for 3, 6, 9, 12, 15 WAP. Data collected on weed cover score, weed dry matter production, crop vigour score, canopy spread, pod yield and numbers were subjected to analysis of variance and treatment means were separated using least significant difference at P ≤ 0.05. The results showed that total weed dry matter production increased with weed infestation period and decreased with weed free period. Also, there was significant increase in pod yield and count when plots were kept weed free for 6 WAP and more. Our findings showed that, the highest percent weed accumulation, weed removal, pod yield loss and pod yield gain all occured between 3 and 6 WAP. Therefore, the critical period of weed interference in groundnut is between 3 and 6 WAP. Also, there was 83.4% pod yield loss in groundnut when weed was allowed to compete freely with the crop throught crop life cycle.

The article presents the results of the research on the effect of different levels and ratios of arginine and lysine in the compound feed of broiler chickens on their meat productivity. We conducted the research by the group method, on 600 heads of Cobb-500 crossbred broiler chickens, divided into six research groups according to the principle of analogs. During the experiment, chickens consumed the compound feed that differed only in the content and ratio between essential amino acids: arginine and lysine. We established the efficiency of increasing the arginine-lysine ratio in the compound feed of broiler chickens to 1.10 at the age of 1–10 days; 1.06 at the age of 11–22 days and 1.07 at the age of 23–42 days. That contributed to an increase in the pre-slaughter live weight by 0.68–0.88 % (р˂0.05), the carcass weight before evisceration – by 0.97–1.27 % (р˂0.05), the semi-eviscerated and eviscerated carcass weight – by 0.39–2.24 %, the breast muscle weight – by 8.95–11.47 % (p˂0.01), and the leg muscle weight – by 1.67–9.47 % (p˂0.05). The yield of the breast muscles increased by 1.64–2.18 % (р˂0.01), of the leg muscles – by 0.17–1.47 % (р˂0.05); the meatiness of the carcass, breast and legs increased, respectively, by 3.45 % (р˂0.05); 1.80 (р˂0.05) and 1.64 %; the yield of edible parts increased by 1.46–3.96 % (р˂0.05). Narrowing the arginine-lysine ratio, accordingly to 1.02; 0.97 and 0.98, led to a decrease in the yield of breast and leg muscles by 1.91 and 1.07 %, respectively (р˂0.05); the yield of internal fat increased by 0.40–1.10 % (р˂0.05); carcass meatiness decreased by 1.08–3.23 % (р˂0.01), breast meatiness – by 0.66–2.15 % (р˂0.05), leg meatiness – by 0.43–1.10 % (р˂0.01); the yield of edible parts decreased by 0.11 – 0.33 %.

The question of energy independence is crucial for many countries in the developed world these days. In addition to solar and wind energy, agriculture and plant production are sources of renewable energy. Crops can be grown for the production of biomass for direct combustion, biofuels, and bio-ethanol. In addition to these benefits, lignocellulosic plants have a huge potential for wide application in industry, construction, paper, automotive, and pharmaceutical industries. However, the yield of products from energy crops depends on many environmental factors, and one of them is their pests. In this article, we reviewed selected energy crops (Amaranthus spp., Cannabis sativa (L.), Panicum Virgatum L. and Sida hermaphrodita (L.) Rusby) and their most important pests. Summarizing the literature we discovered that the most prevalent pests are different types of insects as well as viral and fungal pathogens.

The effect of growing maize with undersown crops on the content of mycotoxins in maize biomass was studied. Small plot experiments were conducted in 2019 on two sites with different soil and climatic conditions: Žabčice and Troubsko. Three treatments of intermediate crops (Italian ryegrass; Fodder vetch and a mixture of both) were undersown into the space between the rows of maize. The maize was harvested at a dry matter content of 35% at the Troubsko experimental site and 43% at the Žabčice experimental site. After the harvest of maize, samples of green biomass (shreddings) were dried at 60°C and then analyzed for the content of mycotoxins such as deoxynivalenol (DON), aflatoxin (AF,L), and fumonisin (FUM). An average yield of maize shreddings ranged from 16.50 to 21.57 t/ha of dry matter within the individual treatment. The contents of mycotoxins from the sites differed in their statistical significance, and both experimental sites showed the lowest concentrations of AFL in maize shreddings while average concentrations of FUM and DON were always the highest. In most observations, treatments with the undersown crops reached the same values as the control treatment. Only in one treatment (mixture of Italian rye grass and Fodder vetch), an increase in the AFL content (by 0.3 µg/kg) was detected. Based on the performed analyses, it is possible to state that no adverse influence of undersown crops on the occurrence of mycotoxins in maize shreddings was recorded using the chosen methodology of cultivation. Exceeded limit values for the content of mycotoxins in feeds according to 2006/576/ were not recorded.

The aim of this review is to consolidate the already much published knowledge concerning the gastrointestinal tract of the dairy cow in relation to nutrition. This review document deals with the essential living conditions of dairy cows, with an attention to nutrition, and highlights the importance of correct ration design. Dairy cows in different production cycles have special requirements for the composition, structure and nutrient composition of their rations. This review document provides more detailed information on the physical structure of feedstuffs as well as the need for individual nutrients for the right functioning of the dairy cow. These elements determine total health, feed intake, rumination, the development of metabolic diseases and last but not least, milk yield and composition. Rumination is an important and valuable tool that indicates the correctness of these aspects. Many published studies point to the relationship between rumination and health status where early intervention can be made to prevent a reduction in milk yield and consequent negative selection from the breeding stock. Many studies describe rumination as an indicator that forms the basis of the herd on which the very substantial and developing benefits of breeding as well as reproduction itself are built. The rumination-based relationships of heat stress and dairy cow health are also nowadays receiving a great deal of attention in studies. In nowadays also receiving a great deal of attention in studies about relationship not only between rumination - heat stress but also dairy cow health status. Heat stress is characteristically labelled as an unwanted factor that has an adverse effect on dairy cow milk yield.

The aim of the study is to evaluate the influence of selected growing factors on the production, quality, and composition of fatty acids. The field small plot experiments were stablished on research-experimental base in Dolná Malanta in 2018 and 2019. Growing factors and experimental material used in this study were hybrids Carrera, SY Gracia, Marbelia CS and Reasun DS-5 grown by Clearfield and Clearfield Plus technology, and biostimulating preparations Florone (made from hydrolyzed plant proteins formulated with NPK) and Fertisilinn (foliar fertilizer with orthosilicic acid and micronutrients). Statistical analyzes confirmed the significant influence of the year on all monitored parameters of the experiment. For achieved yield and fatty acid content (oleic acid, palmitic acid, and stearic acid) was more favorable experimental season of 2018. Experimental year 2019 was more suitable for creation of yield-forming elements, oil content, and linoleic acid content. Used hybrids significantly affected the head diameter, weight of thousand achenes, yield, oil content, oleic, linoleic, palmitic, and stearic acids. Significant differences between hybrids were achieved mainly in qualitative parameters (oil content, linoleic, palmitic, and stearic acids). The biostimulating preparations significantly affected yield-forming elements (head diameter, weight of head, and weight of thousand achenes), yield and quality (oil content, and all fatty acid composition), from which it follows that the application of biostimulating preparations affects the main production parameters, and the quality of the oil through fatty acid content. The very strong negative relationship (r=-0.9951; P < 0.01) in fatty acid composition between oleic and linoleic acid was found. In the other side very strong positive relation (r= 0.9882; P < 0.01) between number of plants and number of heads was recorded.

Due to the climate change, constant increase in air and soil temperatures, moisture deficiency, agricultural production requires highly adaptive varieties that would provide sufficient yields even under adverse environmental conditions. Our breeding work is aimed at creating varieties of this type. The paper presents the results of the long-term research on assessment of soybean varieties by their adaptability under different soil and climatic conditions by the yield, duration of the growing season and reproductive periods. The stability and plasticity of the researched varieties was determined using the Ebergard and Russell method. According to the research results, Artemida, Hoverla and Amethyst varieties were classified as highly plastic (bi>1) by the yield and they provided the yields of 1.95, 2.2 and 2.1 t/ha. In terms of duration of the growing season (BBCH-10-99), Amethyst, Hoverla, Artemida and Vezha provided high adaptability. These varieties were characterized by the conservative reaction to the change in hydrothermal and soil conditions ensuring stable indicators by the duration of the growing season (BBCH-10-99), coefficient of pasticity (bi) was under 1. The longest flowering-maturation period (BBCH-60-99) was observed in the following varieties: Amethyst – 69.1, Hoverla – 69.0, and Artemida – 69.1 days. The flowering-maturation period (BBCH-60-99) was under one. By the duration of the flowering-maturation period (BBCH-60-99), Amethyst, Hoverla, and Artemida varieties had the highest values of homeostaticity (Hom1 and Hom2), in particular, they were 32.8, 3.64 in Artemida, 30.2, 3.76 in Amethyst, 27.15 and 3.02 in Hoverla varieties.

Field trials were conducted during rainy season of 2019 and 2020 at Teaching and Research Farms, Directorate of the Federal University of Agriculture, Abeokuta, Nigeria (Latitude 7o12′54′′N – 7o9′17′′N; Longitude 3o20′24′′E – 3o27′68′′E). The trials were laid out in a split-split plot arrangement in a Randomized Complete Block Design with three replicates. Main plot treatment was three lowland rice varieties (NERICA L-34, ARICA-3 and WITA-4), sub plot treatment (three plant populations: 250,000, 160,000 and 111,111) plants/ha and the sub-sub plot treatment (three seedling ages: 7, 14 and 21 days). Data collected on growth, yield and yield components were subjected to analysis of variance (ANOVA) and treatment means separated using 5% least significant difference (LSD at p ≤ 0.05). The results showed that there was 36% and 120% increase in hill count when rice was planted at 160,000 plants/ha and 250,000 plants/ha, respectively compared to 111,111 plants/ha in both years. Planting 7 days old rice seedling resulted in lower hill count compared to planting 14 and 21 days olds seedling. In both years, NERICA L – 34 produced longer rice grains, more grains per panicle and higher grain yield than ARICA – 3. Our findings also revealed that rice grain yield increased with plant population with the highest yield recorded with 250,000 plants population. Highest grain yield was recorded with planting 21 days old rice seedling. Therefore for maximum rice yield, 21 days old seedling of NERICA L – 34 should be planted at 250,000 plants/ha.

The objective was to analyse (1) relationships between somatic cell score (SCS) i.e. logarithmic transformation of somatic cell count (SCC) and daily milk yield and milk components (fat, protein and lactose contents), and (2) factors aff ecting variation of these traits in Hostein cows. Test day records (10,892) from 2015 to 2020 were investigated. Relationships were characterized using linear correlations. Eff ects of fi xed factors: SCC class, parity, month in milk, sampling year and season, and random factors of cow and residual error were evaluated using mixed model. The factor SCC class was omitted in the analysis of SCS. There were found negative correlation coeffi cients between SCS and milk yield (-0.25) and lactose content (-0.36), and positive correlation coefficients between SCS and fat content (+0.12), and between SCS and protein content (+0.15). The considered fixed factors showed the significant influence on investigated traits. With increasing SCC, milk yield and lactose content decreased and fat and protein contents increased (this pattern agreed with pattern of correlation coeffi cients). Milk yield, fat and protein contents and SCS were lower in primiparas than in multiparas; lactose content showed the opposite pattern. The lowest milk yield and lactose content were found in autumn; the lowest fat and protein contents were found in summer. The highest SCS found in winter did not confi rm a hypothesis that higher temperatures and humidity have impact on cows’ susceptibility to infections and the number of pathogens to those cows are exposed. Further research is needed.

Sunflower is the second most cultivated oilseed crop in Slovakia. It remains an attractive crop in primary agricultural production because of the many benefits it provides. The study aimed to assess the impact of biological material (Subaro HTS, Sumiko HTS) and products containing bioactive substances (Humix® Universal, Humix Bór, Energen Fulhum Plus and Energen Stimul Plus) on sunflower production in the 2021–2022 growing seasons. A partial aim was to investigate the possible effect of adaptogens on a plant organism, specifically sunflower. The field trials were designed using the perpendicularly split block method with a randomized block complete design on an experimental basis of SAU in Nitra, located in a warm maize production area. The variability of weather conditions was statistically demonstrated on the achieved production parameters. Weather conditions were more favorable in 2022 regarding seed yield 3.25 ±0.31 tons per hectare (t.ha-1) and oil content 47.14 ±0.90%. Evaluation of biological material confirmed that the hybrid Sumiko HTS achieved significantly higher yields of seeds 3.29 ±0.28 t.ha-1 and oil content 46.66 ±1.32% compared to Subaro HTS. The utilization of bioactive substance combinations exhibited significant impact on sunflower production. Specifically, superior values in the examined parameters, such as seed yield 3.30 ±0.26 t.ha-1 and oil content 46.99 ±1.12%, were observed in instances where Energen Fulhum Plus + Energen Stimul Plus preparations, inclusive of adaptogens, were applied during the growth stage BBCH 18.

Microalgae are recognized as one of the most promising raw materials for the production of third generation biofuels because of their fast growth and high energy yields. Chlorella sorokiniana is a green microalgae that thrives in wastewater and is also used for its purification. The goal were to verify the effective method of cultivation and subsequent biochemical conversion of green microalgae in open bioreactors, monitoring the amount and quality of biogas produced in an experimental fermenter using the wet fermentation method at the Faculty of European Studies and Regional Development at the Slovak University of Agriculture in 2023. As a result of the experiment, we found that the specific production of biogas per unit of organic dry matter of 4.503 m3/kg from the grown biomass of green microalgae of the monitored species several times, specifically 4.7 times exceeded the specific production of biogas from first-class corn silage. When converting the specific production of biogas per unit of dry matter, 2.197 m3/kg represents 3.8 times more compared to the most important raw material for biogas production, corn silage. Third generation biofuels are not yet enough used in Slovakia, but there is considerable potential, as our experiment proved.

The purpose of the research is to study the duration of the effective action of various forms of absorbents in the vegetable crop rotation in conditions of unstable moistening of the forest-steppe of Ukraine. Research on the productivity of vegetable crops under the influence of different forms of absorbents showed varying results on different crops. There was a significant (P<0.05) increase yield from 12.7 t ha-1 in the Badyoryi cultivar to 16.4 t ha-1, and from 9.9 t ha-1in the Rutan cultivar up to 12.5 t ha-1 following the application of the gel in both varieties of basil. Pumpkin productivity also increased under the influence of absorbents. Yield increased by 16.4 % in the Siryi Ukrainskyi cultivar and 14.8 % in the Yuvilei cultivar under the influence of the powder. The yield of leafy vegetables (head lettuce, leaf lettuce and spinach) increased by 8.0–11.9 grown on the background of absorbent in powder form. The increase in productive moisture reserves depending on the form of the absorbent, the year of use and the weather conditions of vegetation when using the powder min.-max. was 7.2–8.1 % in May; 9.8–17.1 % in June; 13.2–15.4 % in July. Conclusions. The absorbent in gel form is highly effective in the first year of use, but subsequently its effectiveness declined dramatically, while the powder was less effective in the first year but became more stable in subsequent years.

The article highlights the expediency of growing buckwheat, which meets the basic requirements of organic production, reducing the anthropogenic burden on the environment, preserving and increasing soil fertility. The introduction of organic buckwheat cultivation technology is relevant in modern economic conditions, which contributes to the restoration of agroecosystems and ensures the production of environmentally friendly agricultural products. According to the results of the conducted researches, the regularities of formation of buckwheat seed productivity in organic production were determined. The use of organic fertilizer-biostimulant Vermimag for buckwheat seed treatment and foliar feeding of plants helps to reduce weed infestation of crops, increase yields and increase the economic efficiency of organic buckwheat cultivation technology.

Hormones and fatty acids play a crucial role in enhancing the yield and quality of in vitro produced embryos. The present study aimed to assess the effectiveness of leptin and linoleic acid in increasing the in vitro maturation rate of ovine oocytes and the resulting competence of embryos. Two experiments were conducted. The first experiment aimed to investigate the nuclear status of oocytes at three maturation intervals (9, 21, and 28 hours), while the second experiment aimed to examine the cleavage rates and quality of the resulting embryos. In both experiments, the oocytes were matured in six maturation treatments, primarily consisting of TCM-199 supplemented with varying concentrations of leptin and linoleic acid. The control group, without any addition, was designated as T0, while increasing concentrations of leptin and linoleic acid were added to four treatments: T1 (50 nM.ml-1 and 10 µM, respectively), T2 (75 nM.ml-1 and 100 µM, respectively), T3 (100 nM.ml-1 and 200 µM, respectively), and T4 (150 nM.ml-1 and 1,000 µM, respectively). In the last treatment (T5), only 15% fetal calf serum was added. In comparison with the control (T0) and T5 treatments, matured oocytes in the T3 treatment achieved the highest rates of M-II (88.46% at 28 hours; p <0.001), cleavage (81.27%; p = 0.001), 2–8 cells (22.55%; p = 0.001), morula (11.27%; p = 0.04), blastocyst (66.18%; p = 0.001), and Type I embryo (47.55%; p = 0.02). In conclusion, the maturation of sheep oocytes in a combination of leptin (100 nM.ml-1) and linoleic acid (200 µM) through TCM-199 resulted in the highest rates of maturation and embryonic cleavage of excellent quality.

Production requires highly adaptive varieties that have a high level of genetic protection of the crop from biotic and abiotic factors of the environment and can maximally realize the potential of the crop in combination with high-quality seeds. The article presents the results of studies on the assessment of soybean varieties by the adaptability of qualitative characteristics in different soil and climatic conditions in terms of the years of research according to the content and output of oil and protein, as well as the intensity of oil and protein formation in soybean seeds. The adaptability of soybean seed quality of the studied varieties was determined by the Eberhard and Russell method. According to the research results, the highest oil content in the seed was observed in the following varieties: Hoverla (22.2%), Artemida (21.1%), and Zolotysta (20.7%), and the highest protein content was recorded in Artemida (39.2%) and Zolotysta (39.3%). It should be noted that the indicated varieties are conservative (bi<1) by the response to changes in the hydrothermal regime, except for Hoverla, which is highly plastic (bi˃1) in terms of oil content in the seeds. These varieties have the highest indicators of agronomic stability (As) in terms of protein content in seeds: 99.2; 99.0%, as well as the sequence of distribution of varieties according to homeostaticity of the first (Nom1) and second (Nom2) types: Artemida – 131.4 and 109.5; Zolotysta - 99.2 and 62.0. The highest output of oil and protein from seeds was recorded in Hoverla – 0.48 and 0.805 t/ha, Artemida – 0.43 and 0.803 t/ha, which belong to highly plastic varieties by the response to the improvement of the agro-background of cultivation, the variance of stability (Si2) in which is as close to zero as possible. The combination of high yield of oil and protein became possible due to the high productivity of Hoverla, as for Artemida, these traits are at the level of above mean values. The highest intensity of oil and protein formation in seeds was observed in Hoverla– 4.25 and 7.12, Artemida – 3.8 and 7.06, Amethyst – 3.43 and 6.72 kg/ha per day, which belong to highly plastic varieties (bi˃1), and the stability variance (Si2) in which is as close to zero as possible.