scholarly journals INFLUENCE OF PRECURSES AND SOWING DATE ON OVER-WINTERING AND WINTER WHEAT PRODUCTIVITY UNDER CHANGING REGIONAL CONDITIONS

2020 ◽  
Vol 15 (2) ◽  
pp. 66-71
Author(s):  
Rezeda Sharipova ◽  
Robert Hakimov ◽  
Natal'ya Hakimova
Keyword(s):  
Winter Wheat ◽  
Optimal Time ◽  
Winter Period ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Phase Form ◽  
Sowing Dates ◽  
Ulyanovsk Region ◽  
Winter Crops ◽  
Viable Seeds

The research was carried out in order to determine the optimal time for sowing winter wheat according to various predecessors in the changing climate of Volga forest-steppe. The work was carried out in 2013–2019 in Ulyanovsk region on heavy loamy leached chernozem using conventional techniques. The experimental scheme provided for the study of two predecessors (peas and pure fallow) of winter soft wheat of Marafon variety, sown at 6 sowing dates with an interval of 10 days (from August 20 to October 10). The seeding rate for pure fallow is 5.0 million viable seeds per hectare, for peas - 5.5 million viable seeds per hectare. Average annual air temperature for 1961–2018 increased by 1.8°С. Its most significant increase was noted in the last twenty-five year period of time in the winter months. The increase in the frequency of extremely warm winters and temperature variability in the winter period significantly changed the conditions for overwintering winter crops. The danger of the development of wintering weeds, damping diseases, and soaking of winter crops has increased, and the conditions for overwintering pests have improved. It is possible to mitigate the danger of the natural and climatic vulnerability of crops during the wintering period by observing the optimal sowing dates, which should be postponed to a later period (7 ... 12 days), compared with the previously recommended ones. The optimal sowing period for winter wheat in Ulyanovsk region is from August 30 to September 10. Earlier crops are more intensively affected by diseases (powdery mildew and brown rust), and later crops, which have left in the winter in the germination phase, form a low density, form a small ear and provide low productivity or completely die

scholarly journals Lazurit winter wheat seeding rates in dependence to the predecessors and time of sowing in the Rostov region

2019 ◽  
Vol 20 (6) ◽  
pp. 548-556
Author(s):  
A. S. Popov
Keyword(s):  
Winter Wheat ◽  
Conflict Of Interest ◽  
Sowing Date ◽  
Ordinary Chernozem ◽  
Seeding Rate ◽  
Sowing Time ◽  
Yield Level ◽  
Rostov Region ◽  
Sowing Dates ◽  
Viable Seeds

The study is aimed at determining the optimal seeding rates for durum winter wheat Lazurit variety by various seeding dates that would provide the highest grain yield in the conditions of Rostov region. The research was carried out in 2016-2018 on ordinary chernozem after different predecessors for winter wheat (black fallow and sunflower). Studied were: the seeding rates (3 mln, 4 mln, 5 mln viable seeds per hectare after the black fallow predecessor; 5 mln, 6 mln ,7 mln viable seeds per hectare after the sunflower predecessor), and the sowing date (the 10th,20th,30th of September, the10th of October). It has been established that after the black fallow predecessor the seeding rate for durum winter wheat Lazurit variety can be reduced to 3 million viable seeds/ha on the early sowing date (September,10) and optimal sowing date (September, 20). When sowing at the end of optimal (September, 30) and acceptable (October,10) periods, the sowing rate must be 5 million viable seeds/ha. After the sunflower predecessor, on the early sowing date (September,10) and optimal sowing dates (September, 20 and 30) the sowing rate of 5 million viable seeds/ha should be used. At the end of acceptable periods (October,10) the sowing rate should be increased to 6 million viable seeds/ha. After the black fallow predecessor, the highest yield of durum winter wheat has been formed – from 4.61 to 6.06 t/ha depending on the sowing rate and time of sowing. After the sunflower predecessor the yield level ranged from 3.43 to 4.28 t/ha. The optimal sowing time for durum winter wheat Lazurit variety in the south of Rostov region has been established - from the 10th to the 30th of September. Sowing in this period provided the largest number of productive stems (after the black fallow predecessor – 476-568 pcs/m2, after the sunflower predecessor – 420-512 pcs/m2), the grain mass per ear (1.21-1.36g and 0.91-1.08g), the plant height (95-100 cm and 92-100 cm), the ear length (6 cm and 4-5 cm, respectively).Conflict of interest: the author stated that there was no conflict of interest.

scholarly journals Weather Factors and Their Influence on the Adaptive Properties of Winter Wheat Varieties in the Western Forest-Steppe of Ukraine

2021 ◽  
Vol 24 (6) ◽  
pp. 34-40
Author(s):  
Maria Zapisotska ◽  
Olexandra Voloshchuk ◽  
Ihor Voloshchuk ◽  
Valentyna Hlyva
Keyword(s):  
Soil Moisture ◽  
Winter Wheat ◽  
Seed Quality ◽  
Phenotypic Variability ◽  
Yield Potential ◽  
Winter Period ◽  
Forest Steppe ◽  
Weather Factors ◽  
Field Germination ◽  
Soft Winter Wheat

The yield potential of winter wheat (Triticum aestivum L.) is formed in changing weather conditions and depends on the proposed agro-technological measures, to which the response of a particular variety is different. The purpose of this study was to determine the influence of weather factors on the field germination of soft winter wheat seeds, the growth and development of plants in the autumn and wintering in the zone of the Western Forest-Steppe of Ukraine, by sowing high-quality basic seed, careful soil preparation and the presence of optimum environmental factors. A sufficient level of productive soil moisture, which protects young shoots from possible deficiency after germination and is a long-term source of moisture at the next stages of organogenesis, has a great influence on obtaining friendly and timely shoots. Often overwintering conditions, when plants suffer from low negative temperatures at the beginning and at the end of the winter period, ground ice crust, resumption of vegetation in winter are the causes of freezing, loss, and ultimately a decrease in yield and seed quality. It has been confirmed that an increase in the temperature regime in 244-247°C in the autumn-winter period and the optimal amount of precipitation contribute to sufficient (31.6-34.6 mm) productive soil moisture (0-20 cm), which positively influences the process of germination of soft winter wheat, provides a high percentage of field germination of seeds of varieties (93.8-94.5%), lengthens the autumn development of plants by 3-12 days, which causes 3.5-5.7% higher accumulation of sugar content in the tillering nodes and a high percentage of overwintering (up to 95.5-96.4%). Varieties of the forest-steppe ecological type of soft winter wheat have insignificant phenotypic variability of adaptive traits, therefore, in the production of grain and seed products, it is recommended to give preference to the plant varieties listed in the Register, suitable for distribution in Ukraine for the Forest-Steppe zone, Polissya. The recommendations set out in this scientific work will help agricultural producers of the studied soil and climatic zone to carry out an effective, more ecologically plastic, highly productive variety replacement

scholarly journals Influence of technological methods of growing on the anatomy-morphological structure of the stem of winter wheat in conditions of the right-bank Forest-steppe of Ukraine

1970 ◽  
pp. 93-101
Author(s):  
V.A. Mazur ◽  
H.V. Pantsyreva ◽  
Y.M. Kopytchuk
Keyword(s):  
Winter Wheat ◽  
High Resistance ◽  
Morphological Structure ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Morphological Parameters ◽  
Seeding Rate ◽  
Morphological Studies ◽  
Wheat Hybrids ◽  
The Right

Purpose. Study of the anatomical and morphological structure of the stem of winter wheat hybrids depending on fertilization backgrounds and seeding rates in agrocenoses of the Right-Bank Forest-Steppe natural zone of Ukraine. Methods. Observation, comparison, analysis and synthesis, forecast, field experiment. Results. The study of the dynamics of formation and functioning of the anatomical and morphological structure of the stem of winter wheat plants was carried out. The influence of the background without fertilizers and against the background of their increased level of application on the length of internodes (1-3) of stems in winter wheat agrocenoses was studied. It has been proven that seeding rates significantly influenced the length of the internodes. The influence of the background of mineral nutrition and seeding rates on the main anatomical and morphological parameters of winter wheat stems, in particular, the thickness of the stem and ring of mechanical tissue, the number and diameter of vascular-fibrous bundles was studied. It was found that the strength of the straw is largely determined by the number of vascular-fibrous bundles, as well as their diameter. It was the biggest on the variants with the increased fertilization background. It is noted that anatomical and morphological studies are needed in order to ensure the development of a more durable straw, which determines high resistance to lodging at a seeding rate of 3 and 1.5 million seeds/ha. Conclusions. On the basis of the conducted studies, it was found that the soil and climatic conditions of the years of the study and the factors that were studied have a direct influence on the anatomical and morphological parameters of wheet. At the same time, the best conditions for the maximum realization of the potential of the Patros hybrid of winter wheat plants were created in the experimental variants with a seeding rate of 3 and 1.5 million seeds/ha, ensuring the development of a more durable straw, which led to a high resistance to lodging.

scholarly journals Comparative evaluation of autumn and spring application herbicides in winter wheat crops in the conditions of the forest-steppe zone of Ukraine

2019 ◽  
pp. 175-190
Author(s):  
I. Storchous
Keyword(s):  
Winter Wheat ◽  
Technical Efficiency ◽  
Growth Parameters ◽  
Steppe Zone ◽  
Cultural Development ◽  
Optimal Time ◽  
Optimal Timing ◽  
Forest Steppe ◽  
Effective Period ◽  
Negative Impacts

Goal. Justification for autumn and spring application of herbicides in crops of winter wheat in conditions of Forest-Steppe zone of Ukraine. Methods. Observation, analysis and synthesis in conjunction with special methods. Special methods: field — for evaluation of the properties of weeds to reproduce and regenerate, the study of ontogenesis and morphogenesis, depending on various factors; quantity and weight — to determine the level of contamination of sowing, growth parameters and development of plants, productivity and elements of structure; mathematically-statistical — to determine the reliability of the results. Results. The level of technical efficiency of herbicides and derivatives aromatic amines and sulfonylureas. Improved control segetal vegetation and identifies the effective period for the application of herbicides in crops of winter wheat with the aim of ensuring high crop yield. Studies have confirmed that the timely and maximum destruction of weeds in crops of winter wheat contributed to better growth and development of plants in culture, which showed its competitiveness to counter the negative impacts segetal vegetation throughout the growing season. Conclusions. The optimal timing for herbicide application in the autumn in crops of winter wheat is the phenological phase of development of the culture of the 1—2 leaf, the rate of consumption of sulfonylureas: Marafon KC — 4.0 l/ha was Grodil Maxi OD, and.d. — 0,11 l/ha, Granstar gold 75, v.g. — 0,035 kg/ha, Starane Premium 330 EC, k.e. — 0.5 l/ha. During the autumn application of technical efficiency of 100% had the variant with the application of herbicide Granstar gold 75, VG with a dose rate of 0.035 kg/ha. With the herbicide in the spring, the optimal time was the phenological phase of cultural development — tillering. Technical efficiency of the medicines when spring application in all variants amounted to 90—100%.

scholarly journals Variability in 1000 kernel weight of winter bread wheat (Triticum aestivum L.) genotypes depending on ecological and agrotechnical factors

2021 ◽  
Author(s):  
O. Demydov ◽  
I. Pravdziva ◽  
V. Hudzenko ◽  
O. Demyanyuk ◽  
N. Vasylenko
Keyword(s):  
Winter Wheat ◽  
Green Manure ◽  
Growing Season ◽  
Sowing Date ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Forest Steppe ◽  
General Tendency ◽  
Preceding Crop ◽  
Sowing Dates

In the ecological conditions of the central part of the Ukrainian Forest-Steppe (The V. M. Remeslo Myronivka Institute of Wheat, NAAS of Ukraine) the influence of growing season conditions (2016-17–2018-19), sowing dates (September 26, October 5, October 16) and different preceding crops (green manure, mustard, soybean, sunflower, corn) on variability of 1000 kernel weight of seventeen modern genotypes of winter wheat was investigated. Under environments of the central part of the Ukrainian Forest-Steppe, significant variability in the trait depending on the factors under study was revealed. Part of sum square for the growing season conditions in the variation of 1000 kernel weight of winter wheat was the most (63.2%). Part of sum square for genotype was 7.0%, for preceding crop it was 4.8%, for sowing dates it was 0.4%. In terms of growing season, the variation in part of sum square was 23.5–30.1% for genotype, 12.7–39.8% for preceding crop, 0.8–6.1% for sowing date, and 2.0–26.5% for interactions between them. During the period of the study, on average for all genotypes, the maximum 1000 kernel weight was obtained after green manure (42.6 g), the least one was after soybean (39.0 g). When changing the sowing dates from September 26 to October 16, it was revealed a general tendency of decrease 1000 kernel weight after the preceding crops mustard, sunflower, corn, and soybean. Significant differences in the response of genotypes under study on the sowing dates after different preceding crops were revealed. The most influence on 1000 kernel weight was established for preceding crops in the variety MIP Darunok and for sowing dates in the variety MIP Vidznaka. There were distinguished the varieties Trudivnytsia myronivska, Balada myronivska, MIP Dniprianka, Avrora myronivska, MIP Darunok which significantly exceeded the standard by 1000 kernel weight on average through the growing season conditions, sowing dates, and preceding crops.

scholarly journals Effect of Combined Dressing Agents on Phytosanitary Situation in Winter Wheat Ecosystems

2021 ◽  
Vol 37 ◽  
pp. 00146
Author(s):  
Vasily G. Vasin ◽  
Elena V. Pertseva ◽  
Lyudmila V. Kiseleva ◽  
Oksana P. Kozhevnikova
Keyword(s):  
Winter Wheat ◽  
Root Rot ◽  
Comparative Assessment ◽  
Forest Steppe ◽  
Seeding Rate ◽  
High Quality ◽  
Seed Dressing ◽  
Middle Volga

The Middle Volga forest-steppe was subject to a comparative assessment to evaluate the effectiveness of combined insect-fungicidal pesticides as regulators of a phytosanitary state of farming ecosystems and yields of winter wheat. Insect-fungicidal pesticides used for pre-sowing treatment do not guarantee unconditional success, but they help to significantly reduce pest-induced losses and obtain safer grain produce. Regulated seeding rates showed that, once applied, combined dressing agents become slightly less biologically effective with overcrowding or thinning of crops. Dividend Supreme effectively reduced damage to shoots by Swedish flies, slightly worse than Celest Top. Celest Top and Dividend Supreme ensured stable suppression of root rot during the years of research. The winter wheat increasingly lodged when Celest Top and Dividend Supreme were used for seed dressing compared to the control (without dressing). Insect-fungicidal dressing agents increased the yield of winter wheat compared to the control and, at the same time, the risk of lodging. This effect was especially noticeable when Celest Top was used. It is recommended to use the combined Dividend Supreme and Celest Top pesticides for ensuring a stable phytosanitary situation and obtaining a high-quality harvest with a seeding rate of the target crop of 2-3 million seeds per 1 ha.

scholarly journals INFLUENCE OF SOWING DATES AND SEEDING RATES ON PRODUCTIVITY OF WINTER WHEAT VARIETIES IN THE REPUBLIC OF TATARSTAN

2020 ◽  
Vol 15 (2) ◽  
pp. 53-58
Author(s):  
Irina Fadeeva ◽  
Marsel Tagirov ◽  
Ilyas Gazizov ◽  
Fail' Kurmakaev
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Stand Density ◽  
Seeding Rate ◽  
Sowing Time ◽  
Wheat Varieties ◽  
Sowing Dates ◽  
The Republic ◽  
Factor C ◽  
Sowing Period

In 2018-2019 in the Republic of Tatarstan the studies were carried out to study the effect of sowing dates and seeding rates on productuvuty of new varieties of winter wheat to identify the optimal elements of cultivation technology. The experiment scheme provided for the study of the following options: variety (factor A) - Darina, Universiada, Sultan; sowing time (factor B) - September 1 ... 2 (first, optimal), September 15 ... 17 (second); seeding rate (factor C) - 5.0; 5.5; 6.0; 6.5 million viable seeds per hectare. The predecessor is pure steam. Plot area 25 m2. The formation of the grain yield was mainly influenced by the sowing period (28.6%), the choice of the variety (21.2%) and the interaction of the three factors studied (15.8%). Universiada variety formed a yield of 4.91 t/ha during the first sowing period with a pure fallow and a seeding rate of 5.5 million pcs/ha. Sowing after September 15 resulted in a 33.78% decrease in the productivity of this variety. Darina variety formed the highest stand density among all the studied genotypes, both at the first (551.5 pieces/m2) and at the second (476.0 pieces/ m2) sowing dates. The highest grain yield of this variety was noted with the optimal (first) sowing period for pure fallow and the seeding rate of 6.0 million pcs/ha - 4.70 t/ha. A shift in sowing to a later date reduced its yield by 26.48%. Sultan variety formed the highest grain yield when sowing on September 1 ... 2 on a clean fallow with a seeding rate of 6.0 million pcs/ha. With a delay in sowing, like other varieties, the value of this indicator decreased by 24.65%. The analysis of correlations showed the dependence of the yield at the optimal sowing time in a medium degree on the grain size (r = 0.66), with a late one - on the number of productive stems for harvesting (r = 0.56). Key words: winter wheat (Triticum aestivum L.), variety, productivity, yield, grain weight, correlation

PRODUCTIVENESS OF PEAS IN THE FOREST-STEPPE ZONE OF NORTH OSSETIA – ALANIA

2020 ◽  
Vol 15 (5) ◽  
pp. 649-657
Author(s):  
A.A. Tedeeva ◽  
Keyword(s):  
Field Experiments ◽  
Photosynthetic Activity ◽  
Humus Content ◽  
Available Phosphorus ◽  
Forest Steppe ◽  
North Caucasus ◽  
Seeding Rate ◽  
Scientific Center ◽  
Viable Seeds ◽  
North Ossetia

The article is devoted to the study of the influence of sowing methods, seeding rate and herbicide on the development, yield and photosynthetic activity of chickpea sowing – one of the most controversial issues in chickpea agricultural technology. The influence of sowing methods and seeding rates on the photosynthetic activity of plants has been studied. The selection of effective measures to control chickpea weeds is also part of our research. One of the most significant issues for obtaining high yields of chickpea is the correct sowing method, seeding rate and the use of herbicides. The studies were carried out in 2017–2018. on the experimental field of the North Caucasus Research Institute of Mining and Piedmont Agriculture of the All-Russian Scientific Center of the Russian Academy of Sciences on leached chernozems: arable layer pH salt. 5.8–6, humus content 5.8%, easily hydrolyzable nitrogen – 80 mg/kg, available phosphorus – 118 mg/kg, exchangeable potassium – 120 mg/kg, molybdenum – 0.25 mg/kg, boron – 0,5 mg/kg of soil. In field experiments, the seeding rates, the method of seeding and the effect of herbicides were studied. The aim of the research was: to develop agricultural practices that ensure the collection of grain products and vegetable protein in the foothill zone of RNO-Alania. According to the results of the studies, in the conditions of the foothill zone of the Republic of North Ossetia – Alania, according to the complex of indicators of plant activity, variants were distinguished when applying the herbicide with seeding rates of 0.8 and 1.0 million viable seeds per hectare with a wide-row sowing method and with seeding rates 0.6–0.8 million germinable seeds per hectare with the drill method. Against a herbicide-free background, the best options were with a seeding rate of 1.0 million viable seeds per hectare, both with wide-row and with a row sowing method.

Yield and quality of wheat grain with mild winter wheat depending on the variety and seeding rate in different soil and climatic conditions

2016 ◽  
Vol 2 (91) ◽  
pp. 44-50
Author(s):  
I.V. Petunenko ◽  
S.M. Kalenska ◽  
P. Liebhard
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Field Experiments ◽  
Nitrogen Nutrition ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Research Station ◽  
Seeding Rate ◽  
Control Variant

In Ukraine and Austria in 2012 − 2014 was researched the features of yield formation and grain quality of six varieties winter wheat of Ukrainian and Austrian selection with different seeding and fertilizing rates. Field research conducted in three field experiments: 1) Right Bank Forest-Steppe of Ukraine (PC NULES “Agronomic Research Station,” v. Pshenychne Vasylkiv district, Kyiv region); 2) zone of sufficient moisture in Austria (Wald und Myulfirtel, p. Kauttsen, North of Lower Austria); zone of unstable moisture of Austria (Nordostlyhes Flah und Hyuhelland, v. Leopoldsdorf, East of Lower Austria). Field multifactor experiments was laid on the same pattern in each of the farms in 2012 – 2014: variety (factor A); rate of nitrogen nutrition (factor B), seeding rate (C factor). Were chosen six varieties, genetically different by baking quality and origin: strong varieties – Lybid, Joseph, Midas, Capo; valuable – Balaton, Polis’ka90. Nitrogen was applicated by next four graduation(with introduction during vegetation under phases: autumn tillering – ВВСН 10-21 / spring tillering – ВВСН 25-29 / booting – ВВСН 30-31 Earing – ВВСН 51- 59): D1 – control without nitrogen; D2 – 120 kg / ha a.i .(0/60/60/0); D3 – 180 (0/60/60/60); D4 – 150 kg / ha a.i. (30/60/60/0). The article presents experimental data from two options of nitrogen supply – con­ trol without nitrogen (D1) and the maximum standards for nitrogen fertilization in three applying – 180 (0/60/60/60) kg / ha a.i. (D3). Seeding rate: 3,0; 4.0 and 5.0 million germinated seeds per hectare. Phosphorus and potassium – 90 kg a. i., applied as background during primary tillage. Preceded of winter wheat – winter rape. In average during years of research the highest yield made – 9.07 tonnes / ha in conditions of East Austria (p. Leopoldsdorf), North Austria (p. Kauttsen) – 9,42 and Right Bank Forest-Steppe of Ukraine (v. Psenychne) – 8.65 t / ha with application of nitrogen (D3). In control variant was observed significant fluctuations in yield – from 3.51 (v. Psenychne) to 5.21 t / ha (v. Leopoldsdorf). There is significant dependence between wheat yields with weather conditions of the year. Find out the optimum seeding grades for conditions of Ukraine and Austria. Estimation of the ecological plas­ ticity and stability of winter wheat varieties were studied. Determinants of wheat quality formation were acertained. The highest mass fraction of protein was achieved by growing strong varieties and introduction of 180 kg / ha N (D3) in all experiments, in average of the study years, in section of soil and climatic conditions (untypical droughty 2012 for v. Leopoldsdorf was excluded). The highest protein content in conditions of Right-Bank Forrest-Steppe of Ukraine obtained at level 15.8%; East Austria – 15.4% and North Austria – 15.0%. Control variant, without nitrogen, allowed to evaluate the potential of soil and variety in the studied environmental conditions – the aver­ age protein content in grain in conditions of Austria reached 12.2% (v. Leopoldsdorf) and 12.4% (v. Kauttsen), of Ukraine – 11.6% (v. Psenychne).

scholarly journals COMPARATIVE STUDY OF WINTER CROPS VARIETIES ON ACCUMULATION OF PROLINO IN THE AUTUMN-WINTER PERIOD

2018 ◽  
Vol 13 (3) ◽  
pp. 16-22
Author(s):  
Лилия Гильмуллина ◽  
Liliya Gil'mullina ◽  
Гульназ Маннапова ◽  
Gul'naz Mannapova ◽  
Гульнара Маннапова ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Stress Factors ◽  
Winter Period ◽  
Winter Rye ◽  
Free Proline ◽  
Winter Triticale ◽  
Winter Crops ◽  
The Republic ◽  
High Concentrations

Winter hardiness of plants depends on many factors: plant species, variety, duration of quenching phase and meteorological conditions. The reaction to stressful influences during the autumn-winter period is the changes in the cellular metabolism, in which the accumulation of various substances that protect plants from death occurs. Proline is a multifunctional amino acid, that accumulates in high concentrations in response to various abiotic stresses. The purpose of this study is to identify species and varietal differences in the accumulation of proline in winter crops in the Republic of Tatarstan. The material for research was the leaves of winter wheat plants (Triticum aestivum L.), winter rye (Secale cereale L.) and winter triticale (Triticosecale Witt.). The experiments were carried out under conditions of natural stress factors of three consecutive growing seasons of 2014-2017. To determine the state of wintering plants in dynamics, the content of free proline was determined by the Bates method. It is shown that the average values of proline content in winter rye and triticale increased from October to December, but decreased in February. Winter wheat had a further increase in the indicator. The amplitude of the oscillations in December in winter rye was 5.18-13.52 μmol/g, in winter triticale - 9.47-23.15 μmol/g, in winter wheat - 25.81-32.98 μmol/g. The greatest variability of proline values in the studied cultures was noted in February. For each of the winter crops, its reaction rate according to this criterion was revealed. However, there is an intraspecific specific character of the dynamics of the synthesis and breakdown of free proline. Among the studied varieties and hybrids of winter rye, 3 groups differed among themselves. The concentration of proline in the leaves of winter triticale approximated to the values of winter rye, and according to the dynamics of accumulation - to winter wheat.

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