In the extreme climatic conditions of the steppe area of the Saratov region, one of the primary factors in improving alfalfa productivity are the new highly productive and adaptive varieties. The purpose of the current study was to identify the most promising populations according to feed productivity for the development of new highly productive alfalfa varieties in the conditions of the Trans-Volga area in the Saratov region. The zoned blue alfalfa variety ‘Yuzen’ was used as the standard variety. The variety was included in the State List in 2006 for the Middle Volga and Lower Volga regions. The plot of the Competitive Variety Testing was sown in the spring with the SKS-6-10 seeder in wide rows with a 70 cm of row spacing in six repetitions. The plots were two-row, with an area of 18 m2. Green mass productivity was accounted from the plot (t/ha) in the period ‘bud formation-early bloom’ in the first and subsequent cuttings by hand, in two repetitions per 1 m2 of plot. On average, the amount of productivity of the studied samples was 20.3–23.1 t/ha. The population 6/14 showed the smallest productivity (20.3 t/ha). The largest productivity increase was produced by the populations 7/16, 5/12 and the new variety ‘Virineya’. They exceeded productivity of the standard variety on 1.6–2.2 t/ha. The rest populations also slightly exceeded productivity of the standard variety on 0.2–0.3 t/ha. The maximum productivity of feed units was found in the population 7/16, 1/07 and the variety ‘Virineya’ and it amounted to 4.6–4.9 f.u., t/ha. The minimum one was established in the population 5/08 (4.1 f.u., t/ha). According to crude protein percentage, on average during 2 years of the study, the maximum indicator was shown by the population 5/08, which was on 5.50 more than that of the standard variety.

A waxy maize variety differs from other varieties, as its grain contains only amylopectin starch, which is considered a very valuable product for use in food, technical industry, and medicine. An insufficient amount of initial material hinders the development of Russian waxy maize hybrids. The purpose of the current study was to develop and select self-pollinated lines that could be promising for breeding waxy starchy maize hybrids. The study was carried out in the FSBSI Agricultural Research Center “Donskoy” in 2019–2021. As the initial material there were used 54 new constant self-pollinated waxy maize lines, developed by the standard method. There have been identified such self-pollinated lines as 24/5, 24/18, 24/29(5), 24/78, 25/2(3), 26/8 with 68.1–70.2 % of amylopectin starch. The new lines were characterized by high values of the most important traits, namely seed productivity (0.91–1.75 t/ha), resistance to lodging (0–0.6 % of lodging plants), smut ‘virus’ infection (0–3.6 % of infected plants), low and medium harvesting moisture content of grain (14.7–16.3 %). The identified lines can be recommended for use in crossbreeding programs to develop new waxy maize hybrids. There has been established that amylopectin starch percentage in grain of self-pollinated maize lines negatively correlates with protein percentage (r = –0.55) and oil (r = –0.29), which must be taken into account when selecting for initial material. There has been established a mean positive correlation between starch percentage and seed productivity (r = 0.33) and number of cobs per 1 plant (r = 0.33). The selection of genotypes with high values of these traits has been recommended when developing a starchy initial material of waxy maize.

A necessary condition for the stable improvement of barley production in the country is the extension of crops, varieties which are most adapted to the conditions of the region, capable of providing a high and stable level of productivity under changing climatic conditions. Productivity is a complex quantitative indicator, which is formed by various yield structure elements, one of which is ‘1000-grain weight’. The purpose of the current study was to estimate adaptability of the spring barley samples of various geographical origins to the arid conditions of the Stavropol Territory according to the trait ‘1000-grain weight’ and their further use in breeding work. The objects of the study were 60 spring barley samples. In order to determine stability, there has been used a coefficient of variation (V %), ecological adaptability (bi), homeostaticity (Hom), and stress tolerance (Ymin–Ymax). On average, during 2016–2021, the trait ‘1000-grain weight’ among the varieties ranged from 35 to 50 grams. The maximum values of the trait ‘1000-grain weight’ were identified in the varieties ‘Victor’ (Russia) with 50.1g (+5.0% to the standard) and ‘Nutans 74840’ (Russia) with 49.7g (+4.2%). The varieties of the extensive type (bi = 0.49–0.86) ‘Nutans 74840’ (Russia), ‘Prikumsky 22’ (Russia), ‘Pri­kumsky 14’ (Russia) and the standard variety ‘Strannik’ were characterized with high stability (V = 5.9–9.8 %), stress tolerance (Ymin–Ymax= –8–11) and homeostaticity (Hom = 43.1–101.2). The varieties ‘Adapt’ (Ukraine), ‘Vodogray’ (Ukraine) and ‘Novonikolaevsky’ (Russia) responded to the weather improvement to a greater extent (bi = 1.21–1.59), but significantly reduced 1000-grain weight when it worsened (Ymin–Ymax = –17 –21). The varieties ‘Nutans 74840’ and ‘Strannik’ turned to be the most adaptive ones for the aridity of the Stavropol Territory, and therefore the best breeding material.

When developing a variety, along with the classical breeding methods, there are increasingly being used bio-technological and molecular genetic methods. These methods include a cultivation technology of isolated anthers, based on the phenomenon of androgenesis. The current paper has presented the results of developing androgenetic rice lines from 7 hybrids of the first generation. The purpose of the work was to study the ability of rice hybrids to form callus on artificial nutrient media and develop regenerated plants followed by a visual estimation of ploidy. Developing dihaploid homozygous lines will speed up the breeding process. The selection of rice panicles was carried out in the field in the shooting phase at the stage of mononuclear pollen. There were cultivated 7218 anthers, of which there were obtained 259 calli. The combinations ‘Akustik x Nerica 1’, ‘Nerica 1 x Akustik c’, ‘Kapitan x Akustik’ were the most responsive to callus formation. The regeneration frequency to the number of calli was 9.13 %. There were identified 794 new formations, from which there were formed 46 plants, including 26 albino and 20 green. The largest number of plants was formed in the hybrid ‘Kapitan x Akustik’ (22 pcs., 14 of which are green). Among the survived green regenerated plants, according to a complex of morphological traits, two plants turned out to be haploids with small sterile flowers and anthers, thin and narrow leaves; five plants were dihaploids with well-grained panicles and medium-sized leaves; two plants were tetraploids that had a wide leaf, a large panicle with very large flowers, but with low fertility. Plants and seeds were handed over to breeders for further work.

In order to improve the biological value of bakery products and consumer properties of new products, there are used the technological additives and functional ingredients, which include bioactivated hulless oats. The purpose of the current work was to estimate the physical, rheological, baking parameters of the dough mixtures obtained by mixing oat flour (wholemeal flour from bioactivated grain) with high-quality premium wheat flour according to the farinographic results and baking analysis. There has been experimentally established that the indicators characterizing the behavior of the dough varied depending on the type of ingredients (wholemeal grain before and after bioactivation) and the proportion of oat processing products (10, 20 %) in the composite mixtures. Dough resistance has de­creased on 3.0–7.0 min to wheat flour, valorigraphic estimation at 19–40 u.v. and dough dilution increases significant on 60–160 u.f. The physical properties of the dough when used in mixtures of bioactivated grains slightly have dete­riorated compared to non-bioactivated grains: dough resistance and valorigraphic estimation reduced on 0.5–1.0 min and 1–7 u.v., respectively, except for the dough dilution, which improved on 22.0–29.0 %. These processes can be explained by the very high amylolytic activity of the grain after germination. During the trials, there was found an ad­vantage in the general baking assessment in the options using bioactivated oat grain, even though the farinograph recorded a slight deterioration in the physical parameters of the dough. Volume yield was 425–625 cm3 (420–563 cm3 with non-bioactivated grain) and a baking assessment of 2.6–4.4 points versus 2.7–4.3 points. Volume yield increase and baking quality improvement in this case can be explained by the effect of the compensation ability of the mixing strength of wheat. The studied hulless oat varieties ‘Baget’ and ‘Bekas’ in comparison with the chaffy variety ‘Konkur’ in mixtures have shown the best values characterizing the physical properties of the dough and baking quality. They possess better advantage in dough resistance on 1.0–3.0 min., dough dilution on 10–40 u.f. and valorigraphic estimation on 4–17 u.v. They produced 625 cm3 of maximum volume yield, their baking assessment was 4.4 and the tendency remains the same after bioactivation of oat grain.

Development of drought-tolerant spring barley varieties is one of the important breeding directions for resistance to abiotic stress factors. In order to solve this problem successfully, it is necessary to use in hybridization the varieties and lines with the highest tolerance. The main purpose of the current study was to estimate the effect of osmotic stress of different concentrations on seed germination and to evaluate the relative drought tolerance of spring barley varieties and lines. The study was carried out in the laboratory for plant physiology in 2018–2020. The estimation of drought tolerance of spring barley samples was carried out on 26 varieties and lines, bred in the ARC “Donskoy”, in the initial period of development. The laboratory experiments on the ability of spring barley seeds to germinate on a sucrose solution (imitation of a lack of moisture in the soil) make it possible to estimate drought tolerance of samples at the early stages of their development. There was studied an effect of a sucrose solution with an osmotic pressure of 3, 8, 10, 12, 14 atmospheres on the ability of seed germination. When increasing a concentration of the solution, there was a seed germination decrease in all genotypes. As a result of the study, there were the largest statistically significant differences (P > 0.95) of the samples under the concentration of the osmotic sucrose solution of 8 atmospheres, in comparison with the options of 3, 10, 12 and 14 atmospheres. There have been obtained the data on the relative drought tolerance of spring barley varieties and lines. The maximum indicators of seed germination under osmotic pressure of 8 atmospheres were registered among the samples ‘Zernogradsky 1716’ (91.1 %), ‘Zernogradsky 1717’ (85.9 %), ‘Zernogradsky 1719’ (84, 1%), ‘12545/18’ (80.2 %), ‘Zernogradsky 1701’ (78.9 %), ‘12551/18’ (72.9%), ‘12487/18’ (72.4%), ‘Zernogradsky 1724’ (70.6 %), ‘Zernogradsky 1721’ (69.8 %), ‘12525/18’ (69.2 %) in comparison with the standard variety ‘Ratnik’ (43.6 %). The identified samples can be used for further study of drought tolerance in the field.

The study of grain quality at all stages of a variety development, starting with the selection of parental pairs, is the most important condition for the efficiency of breeding. The purpose of the current paper was to estimate winter wheat samples according to the main criteria of grain quality and to select promising ones for further use in the breeding process. The study was carried out in 2019–2021. There were studied new varieties and promising lines of winter bread wheat from the main Competitive Variety Testing, according to green manure fallow. Criteria characterizing grain quality were determined in the laboratory conditions in accordance with methodology and GOSTs. Based on the conducted study, there were identified sources that were characterized by a high severity of grain quality traits. According to ‘grain unit’, there were distinguished such varieties as ‘Matritsa’, ‘Rubin Dona’ and the lines ‘1043/17’ and ‘1582/166’. According to the general kernel hardness there were identified such samples as ‘Matritsa’, ‘Priazovie’ and the line ‘1582/16’. The samples and lines ‘Ermak’, ‘Razdolie’, ‘Rubin Dona’, ‘Matritsa’, ‘Priazovie’, ‘1582/16’, ‘1043/17’, ‘1295/18’, ‘1431/18’, ‘1463/18’, ‘1518/18’, ‘1612/18’ and ‘1895/18’ corresponded to good quality according to SDS-sedimentation. The sample ‘1463/18’ was characterized by a high protein percentage in grain (15.02 %). There were also studied a quantity and quality of gluten, falling number and baking properties. The varieties ‘Rubin Dona’, ‘Matritsa’, ‘Priazovie’ and the lines ‘1582/16’, ‘1463/18’ were characterized by the best expression of the studied traits of quality. These genotypes can be used in the breeding process as sources of high protein and gluten percentage in grain and good baking properties.

Sorghum has valuable biological features and great potential for use. Grain sorghum is characterized with super adaptability, good resistance to air and soil droughts and high temperatures, therefore it can become one of the promising crops in crop rotations. The developed varieties should be early-maturing and large-kernelled. The current paper has presented the study results of the collection nursery of grain sorghum samples of the world breeding. The trials were carried out in the laboratory for grain sorghum breeding and seed production of the FSBSI “Agricultural Research Center “Donskoy” in 2019–2021. According to the study results, there was established that, depending on the year, early-maturing forms made up 39.6–74.4 % of the studied collection. The samples ‘No.2-13’, ‘D577/19’, ‘F7 Pioner 88 x 412 Feterita rannyaya’ and the varieties ‘Kinelskoe 63’, ‘Kamyshinskoe 64’, ‘Kamyshinskoe 75’ were characterized by a short vegetation period (up to 90 days). In 2021, there were 44.8 % of the collection samples with ‘number of kernels per panicle’ from 1001 to 1500 pcs. When compared with the standard variety ‘Zernogradskoe 88’ (1532 pcs.), there were identified eight samples exceeding it in ‘kernel percentage per panicle’. There was found out that the largest part of the collection samples was characterized by a mean and large ‘1000-kernel weight’ (64.1–72.4 % and 16.8–25.5 %, respectively). A very large ‘1000-kernel weight’ (>40 g) through three years was established for the samples ‘Avans’, ‘Atlant’, ‘No.61–13’, ‘Spur Feterita’, ‘Redhull Feterita’, ‘Feterita’. There have been selected the forms with a complex of valuable traits for their further use in breeding work. The purpose of the current study was to research the collection material of various breeding according to such traits as ‘number of kernels per panicle’, ‘1000-kernel weight’, ‘length of a vegetation period’, which have a greater effect on grain sorghum productivity and to identify valuable sources due to these traits.

Drought is a significant abiotic stress factor for agricultural crops, including rice, as freshwater shortage is increasing in the world. The current paper has presented the results of laboratory trials to study the effect of solutions with high osmotic pressure on the ability of seeds to germinate and on the growth of rice sprouts. The purpose of the study was to estimate rice varieties and samples for drought resistance at the initial stages of ontogenesis using osmotic agents. The objects of the study were 67 rice varieties and samples from the VIR, the FRC of Rice and the ARC “Donskoy”. Seeds were germinated in a thermostat on filter paper in Petri dishes in 8, 12, and 16 atm sucrose solutions. As a result of the study, there was found that the best option was rice seeds’ germination in a sucrose solution of 8 atmospheres, in which the samples varied significantly in germination, length of sprouts and roots, both in the trial and in the control. Seed germination on the control was 96.6 %, and in the trial, it significantly decreased to 60.9 %, varying from 20 to 100 %. There were 50.8 % of samples with germination from 60–80 %. At the same time, 4.5 % of the samples were isolated with a germination rate of more than 80 % in the trial. In the trial, a sprout length among the samples varied from 0.2 to 1.4 cm. There were identified 13.5 % of the samples, which had a sprout length more than 1 cm. According to the ratio of a sprout length in the trial to the control, the samples were distributed asymmetri­cally, there were more samples with a low ratio, however, there were identified 4.5% of samples with a maximum O/K ratio (35–40 %). In the trial, aroot length ranged from 0.1 to 4 cm. The frequency distribution was asymmetric, there were 61.2 % samples with a very short root, up to 1 cm. The O/K ratio according to a root was right-sided asymmetric, 74.6 % of the samples had a low ratio from 0 to 15%. There were identified 3 % of samples with the ratio of more than 50 %. They were No. 39 (ZULK 1) and No. 50 (ZULK 12). These samples are used in the breeding process to develop drought-tolerant rice varieties.

The high requirements imposed by modern pasta processing enterprises on the grain quality of both spring and winter Triticum durum dictate the necessity to develop new methods, approaches for estimating breeding material and selecting high-quality genotypes. Correlation analysis, which makes it possible to identify practically positive and negative factors, minimize the most unfavorable ones, accelerate, and increase the efficiency of the breeding process, is one of them.

The purpose of the current work was to study the correlation between quality traits of winter durum wheat and to determine the most accessible and informative ones as selection criteria in the breeding process.

The field and laboratory (determination of grain quality parameters, rheological properties of dough and pasta) study was carried out on the basis of the FSBSI “ARC “Donskoy”, from 2014 to 2020. The material for the study were the varieties and lines of Competitive Variety Testing (n = 35).

There have been presented the analysis results of a correlation between quality traits of kernels, hard semolina, pasta of winter durum wheat. There have been identified the most accessible, informative and significant traits, such as protein percentage, gluten quality (GDI), alpha-amylase (FN) activity, which have a decisive effect on the strength, cooking properties of pasta, rheological properties of the dough, which can be used as selection criteria in the breeding process, including at the early stages. Thus, protein percentage has positively correlated with pasta strength (r = 0.73), dough durability and elasticity (r = 0.86 and r = 0.61), valorimetric estimation (r = 0.55); GDI and FN have correlated with pasta strength (r = 0.69 and r = 0.57), durability (r = 0.92 and r = 0.57), elasticity (r = 0.75 and r = 0.50). The cor­relation between cooking properties of pasta and the above-mentioned traits was negative (positive correlation): digestibility by weight and volume with protein percentage (r = –0.60 and r = –0.71), GDI (r = –0.49 and r = 0.47), FN (r = –0.48 and r = –0.56), dry matter losses, respectively, r = –0.87, r =–0.85, r = –0.78. The content of carotenoids and the color of pasta are characterized with a mean positive correlation (r = 0.46). There has been found that informatively significant quality traits (protein, GDI, FN, carotenoids) are positively correlated with each other from moderate (protein with carotenoids r = 0.36) to strong (protein with FN r = 0.94) links, but negatively with such important parameters for winter durum wheat as 1000-kernel weight and grain unit. Therefore, when selecting breeding forms and lines with increased values of the main traits, it is necessary to control 1000-kernel weight and grain unit, or at least one of them.

Domestic interline maize hybrids are predominantly three-way cross hybrids in structure, and foreign breeding and seed companies prefer simple interline hybrids. In order to improve the competitiveness of domestic breeding, it is necessary to reorient to simple hybrids, which, in turn, requires information on whether simple maize hybrids have an advantage in specific soil and climatic areas. The purpose of the current study was to conduct a comparative study of new simple interline and three-way cross maize hybrids according to grain productivity and uniformity of economically valuable traits under unstable moisture supply. The study was carried out on the experimental field of crop rotation of the laboratory for maize breeding and seed production of the FSBSI “ARC Donskoy” in 2019–2021. The objects of the study were 10 simple and 10 three-way cross new domestic maize hybrids developed by the method of complete topcrosses. The establishment of field trials, records, biometric measurements and phenological observations were conducted in accordance with the methodological recommendations for conducting field trials with maize. There has been found that productivity of simple hybrids (3.49–4.65 t/ha) turned out to be significantly larger than that of three-way cross hybrids (2.84–3.70 t/ha), the mean excess was 0.78 t/ha or 23.6 %. Simple hybrids were characterized with the best uniformity in a length of a vegetation period (V = 0.58–2.13 %), height of maize ear attachment (V = 5.0–11.3 %), plant height (V = 2.8–4.8 %), and, consequently, better harvesting adaptability. There has been found a negative mean correlation (r = –0.49...–0.69) between grain productivity and variation of traits in terms of maturation, plant height and height of maize ear attachment. There has been found no correlation between the structure of interline maize hybrids and such traits as grain harvest moisture, resistance to lodging and smut “virus”. Due to a set of traits there has been identified a new simple interline maize hybrid ‘Zernogradsky 367’.

The current paper has presented the results of study conducted at the Agricultural Research Center “Donskoy” in 2019–2021. The winter bread wheat variety ‘Lidiya’ was taken as the object of study. The forecrop was sunflower. In the variants where it was planned to yield 5.0; 6.0 and 7.0 t/ha, there were used mineral fertilizers (ammonium nitrate, ammophos and potassium salt) in doses (mean through the years) of N66P66K43, N79P79K52 and N92P92K61, respectively. In the control variant, there were used on fertilizers. The purpose of the study was to find out the possibility obtaining the planned winter wheat grain productivity in the southern part of the Rostov region under the use of mineral fertilizers. The amount of precipitation during the agricultural year and a vegetation period of winter wheat was 520.3 and 431.6 mm, while the norm was 582.4 and 446.3 mm, respectively. Depending on the hydrothermal conditions, the sum of air humidity deficits from September to June varied from 1034.1 to 1278.2 mm over the years, and water need for plants ranged from 672.2 to 830.8 mm. The coefficients of precipitation and moisture availability for winter wheat were in the range of 0.53–0.67 over the years. The hydrothermal conditions during the years of study determined win­ter wheat moisture supply during a vegetation period and contributed to obtaining grain productivity of different levels. Under the prevailing hydrothermal conditions, it was not possible to obtain the planned productivity of the winter bread wheat variety ‘Lidiya’. However, all applied doses of mineral fertilizers were cost-effective and there were obtained a significant yield increase of 1.28–2.03 t/ha (the yield on the control was 3.52 t/ha). There has been recommended to take into account the conditions of moisture supply in the cultivation zone when planning productivity and effective use of mineral fertilizers.

The article presents the results of studies on the effectiveness of pre-sowing treatment of winter wheat seeds with multifunctional preparations Icar Sids, Sprintalga and Microfol Combi, conducted at the experimental field and in the laboratory of the Department of Plant Physiology of the North Caucasian FNAC in 2018–2021. The soil of the experimental site is ordinary medium–sized low–humus heavy loamy black soil, with very low availability of mineral nitrogen, medium – mobile phosphorus, insufficient – exchange potassium. The weather of the research area characterized by large amplitude of annual fluctuations in air temperature and precipitation. Weather conditions in 2018–2021 differed, both in the amount of precipitation and in the temperature regime. Studies were carried out in order to identify the physiological features of grain harvest formation during pre-sowing treatment of winter wheat seeds with multifunctional preparations on ordinary black soil of the Central Caucasus. To achieve this goal, the chlorophyll content in the organs of winter wheat plants was studied by extracting pigments with 96 % ethyl alcohol, nitrogen content in plants, account­ing for yield and studying the structure of the crop. It was found that pre-sowing treatment of winter wheat seeds with multifunctional preparations contributed to an increase in the concentration of photosynthetic pigments in plant organs by 4.3–17.9 %, and also influenced the consumption of mineral elements, increasing the nitrogen content in plants by an average of 15.6–42 %, depending on the phase of wheat development, which ultimately led to an increase in yield by 0.22–0.37 t/ha. The cost of preparations used for pre-sowing treatment of winter wheat seeds increased production costs by 167–349 rubles /ha, but due to the resulting crop increase, profit increased by 3099–4905 rubles /t, and the profitability of grain production by 9.2–14.1%.

The current paper has presented the study results of the elements of cultivation technology (sowing date, sowing method, seeding rate) of grain sorghum in the southern part of the Rostov region. Field trials were carried out in 2018–2020. The object of research was the grain sorghum variety ‘Zernogradskoe 88’, included in the State List of Breeding Achievements for the North Caucasus region in 2013. According to the study results there was established that the lowest values of grain weight per plant and 1000-grain weight were formed with a seeding rate of 0.9 million of germinating seeds per ha.In the same variant of the trial, there was determined theworst plants’ preservation before harvesting. Sowing method had the greatest effect on plant density (69.5 %) and on 1000-grain weight (23.8 %); seeding ratehad the greatest effect on grain weight per plant (52.5 %). On average, through the years of study, there was obtained the maximum productivity of 4.14 and 4.12 t/ha with a seeding rate of 0.4 and 0.5 million of germinated seeds per ha, respectively. For grain sorghum, the sowing method with a row spacing of 0.15 and 0.30 m was the most acceptable, where there was yielded 3.70 and 3.65 t/ha. When sowing seeds in the 3rd decade of May (20–22 °C of warming up the soil at a seeding depth), there was identified a maximum productivity of sorghum grain with 3.92 t/ha. The greatest effect on productivity formation (41.6 %) was produced by the seeding rate, the share of the effect of the sowing date was 24.8 %, that of the sowing method was 3.6 %, weather conditions affected on 7.7 %.

The current paper has presented the results of the study conducted in the southern part of the Rostov region by the Agricultural Research Center “Donskoy” in 2019–2021. The purpose of the work was to identify how grain productivity and its qualitative indicators of the winter bread wheat variety ‘Yubiley Dona’ are formed under the influ­ence of various sowing dates and after various forecrops and to estimate the economic efficiency of these elements of cultivation technology. There were used such dates in the trial as September 10, September 20, September 30, and October 10; such forecrops as peas (for grain), sunflower, black fallow, green-manured fallow (corn kale). When laying and conducting the trial, there were used conventional methods. The total area of the plots was 55 m2, the accounting area was 41.25 m2, with four-fold repetition. The seeding rate was 5 million germinated seeds per 1 ha. The soil of the experimental plot was ordinary calcareous heavy loamy blackearth (chernozem). The arable layer of the soil contained 3.2 % of humus; 7.0 of pH; 18.5–20.0 of P2O5; 342–360 mg/kg of K2O. The variety ‘Yubiley Dona’ showed its adaptabil­ity to the sowing dates when sown in black fallow. At the same time, there was identified a positive effect of the sowing in black fallow on September 20 and 30, where the productivity level of the variety reached 6.92–6.95 t/ha, and there was obtained the largest conditionally net income of 62058–62732 rubles/ha. There was established that the highest production profitability was 165.3–168.7 % when the variety was sown after peas on September 30 and October 10. There was a high adaptability to the sowing of the variety at the end of the optimal sowing dates in green-manured fallow, after peas and sunflower. The lowest productive profitability was established when the variety was sown after sunflower (135.4–153.4 %) and in green-manured fallow (127.5–139.2 %). The determining factor in the productivity formation was a productive thick stand, which, depending on the forecrops and sowing dates, varied from 452 to 654 pcs/m2. Black fallow, green-manured fallow and peas contributed to the production of high-quality grain.