scholarly journals MEADOW CLOVER SELECTION FOR THE CONDITIONS OF SOUTH FOREST-STEPPE AND FLOODPLAIN THE CENTRAL BLACK EARTH REGION

2019 ◽  
Vol 2019 (3) ◽  
pp. 55-70
Author(s):  
Сергей Сапрыкин ◽  
Sergey Saprykin ◽  
Иосиф Иванов ◽  
Iosif Ivanov ◽  
Раиса Лабинская ◽  
...  
Keyword(s):  
Climatic Conditions ◽  
Forest Steppe ◽  
Test Results ◽  
Forage Production ◽  
New Variety ◽  
State Register ◽  
High Feed ◽  
Middle Volga ◽  
Selection For ◽  
Better Than

For forage production of the Central Black-Earth Region clover is important. This crop can be effectively used in field crop rotations, to improve natural forage lands and to create cultural hayfields and pastures. Clover meadow has high feed advantages, allowing to fill the protein deficiency, is able to produce good yields, better than alfalfa grows on slightly acidic soils. For the most complete realization of the potential of clover it is necessary to create high-yielding two-cut varieties of meadow clover, which have good winter hardiness and drought resistance, have time to ripen for seeds in the second mowing and adapted to the soil and climatic conditions of the region. The article presents the results of more than 10 years of selection work to create a new variety of meadow clover Voronezhskiy. The variety was created by the method of polycross progeny of the best varieties of populations with a heterogeneous genetic nature, with high and stable heterosis, which were isolated from promising collection samples, followed by biotypic selection. The characteristics of the variety are given and the test results are given at in State varietal plots in a number of regions of the Central Black Earth Region. The new variety is better adapted to the changing climatic conditions of the region. In 2015, the Voronezhskiy clover variety was included in the State Register for the Central Black Earth (5) Region. Testing continues in the Volga-Vyatka and Middle Volga regions.

scholarly journals TEST RESULTS FOR CLONES OF GARLIC

2018 ◽  
pp. 11-12
Author(s):  
B. S. Salomov ◽  
M. H. Aramov
Keyword(s):  
Selection Process ◽  
Test Results ◽  
Tropical Regions ◽  
Small Areas ◽  
State Register ◽  
New Varieties ◽  
Selection For ◽  
The Republic ◽  
High Yielding Varieties ◽  
Almost All

A large number of forms and varieties of garlic created in the selection process allowed this culture to spread almost all over the world: in temperate regions, in subtropics and even in tropical regions. Currently, the world's acreage of garlic is 1.438 million hectares, the average yield is 16.9 tons per hectare, the gross yield is 24.255 million tons. The largest producers of garlic are China, India, South Korea and Egypt. The highest yield was recorded in Uzbekistan, Egypt, China, Tadjikistan. In Uzbekistan, it is grown everywhere, mainly on household plots and small areas in farms. In the republic, varieties of garlic are South-violet (1972) and May VIR (1978). Since 2004, the Surkhandarya Scientific Experimental Station of the VegetableMelon Crops and Potato Research Institute has been conducting selection work to create new varieties of garlic. As a result of the research, the Chidamli variety was introduced and, since 2016, introduced into the State Register. All zoned varieties belong to the group of autumn-sprouting varieties. In 2011- 2015, about 100 promising clones of garlic were evaluated in the south of Uzbekistan. The effectiveness of selection for the size of bulbs and teeth is revealed. Clones with a mass of bulbs and teeth are isolated. Clones with a bulb weight of more than 80 g and a tooth mass of more than 6 g are distinguished. They are a valuable source for the creation of high-yielding varieties of garlic in Uzbekistan.

scholarly journals Main directions of development of agro-technologies for production of spring wheat species for sustainable agriculture in the forest-steppe of the middle Volga region

2020 ◽  
Vol 17 ◽  
pp. 00071
Author(s):  
Marat Amirov ◽  
Farit Shaikhutdinov ◽  
Igor Serzhanov ◽  
Albina Serzhanova
Keyword(s):  
Spring Wheat ◽  
Maximum Yield ◽  
Climatic Conditions ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Wheat Grain ◽  
Middle Volga Region ◽  
Yield Increase ◽  
Middle Volga

The article presents the results of research conducted in different soil and climatic conditions of the Middle Volga region on the influence of regulated factors, as well as environmental factors on the production process of plants of various types of spring wheat. The amount of photosynthetically active radiation (PAR) is enough to obtain yields within 12–13 tons of dry biomass or 6–7 tons of grain. Natural precipitation is able to provide 3.82–4.36 t of spring wheat grain from 1 ha, and 4.5–6.3 t/ha by the total influence of solar energy, heat and moisture supply. Natural level of soil fertility without application of organic and mineral fertilizers allows to receive about 2 tons of spring wheat grain from 1 ha. Application of nitrogen in the form of ammoniac water (N-20.5 %) increased the yield in comparison with the use of nitrogen in the form of ammoniac saltpeter: the increase was 0.14 t per 1 ha. In the conditions of grey forest soil in the Predkamye region of the Republic of Tatarstan the optimal norm of sowing of spring wheat Triticum dicoccum Schuebl (spelt) depending on the feeding background was established. Growth of yield at sowing of 6 million seeds per hectare at all levels of nutrition in comparison with sowing rate of 4 million tons per hectare was 0.18 tons per hectare against the natural background, against the estimated background of NRC on 2.0 tons of grain – 0.19 tons and 2.5 tons of grain – 0.24 tons per hectare. The maximum yield increase was received at a combination of a mineral foodstuff with an optimum norm of sowing and has made on a settlement background 2 tons of grain from hectare – 0.20 tons, on 2.5 tons of grain – 0.34 tons from hectare. Thus, the aim of our research was to develop methods of growing high yielding quality grain of different types of wheat adapted to the conditions of forest-steppe in the Volga region.

scholarly journals OPTIMAL METHODS OF FORAGE CROPS OF CROPS ON THE CALCULATED BACKGROUND OF MINERAL NUTRITION IN THE SOIL-CLIMATIC CONDITIONS OF FOREST-STEPPE OF THE MIDDLE VOLGA

2018 ◽  
Vol 13 (4) ◽  
pp. 72-76
Author(s):  
Радик Сафин ◽  
Radik Safin ◽  
Марат Амиров ◽  
Marat Amirov ◽  
Салават Сулейманов ◽  
...  
Keyword(s):  
Mineral Nutrition ◽  
Great Influence ◽  
Climatic Conditions ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Forage Crops ◽  
Green Mass ◽  
Middle Volga ◽  
Object Of Study ◽  
The Cost

A powerful factor in increasing the yield of feed mixtures is the use of mineral fertilizers. On average, over 4 years of research, the yield of green mass increases from 13.8 tons per hectare at the control (without fertilizers) to 27.4 tons per hectare (almost 2 times). However, the effectiveness of the use of mineral fertilizers depends on how the sunflower and annual herbs are placed in space. Thus, on all backgrounds of mineral nutrition, the highest yield of green mass was obtained by sowing sunflower and annual herbs in separate strips with strip widths of 180 cm: N85P38K46 - 28.2 tons per hectare; N99P44K54 - 32.9 tons per hectare; N113P51K61 - 34.2 tons per hectare. In the same conditions, both narrowing the bands to 90 cm and expanding to 360 cm reduce the yield of the object of study. Mineral fertilizers also have a great influence on the gross yield of raw fat (an increase of 2.8 times), feed units - from 2,562 to 3,904, crude protein - 1.9 times, exchange energy - 2.4 times. As a result, the payback of each ruble of the cost of mineral fertilizers provides for the production of 1.5 rubles, and the bioenergy coefficient increases to 4.4, versus 2.2 for mixed sowing of sunflower and annual herbs.

scholarly journals The productivityof carrots depending of hybrid

2020 ◽  
Vol 1 (97) ◽  
pp. 23-31
Author(s):  
V.V. Ketskalo ◽  
◽  
Т.V. Polischuk
Keyword(s):  
Plant Development ◽  
Total Yield ◽  
Root Diameter ◽  
Climatic Conditions ◽  
F1 Hybrids ◽  
Forest Steppe ◽  
Genetic Features ◽  
Selection For ◽  
The Right

In order to obtain a significant level of yield of table carrots in the Right-Bank Forest-Steppe of Ukraine, it is necessary to select varieties and hybrids in accordance with the soil and climatic conditions of cultivation. The comparative estimation of productivity of hybrids of carrots of table foreign selection in the specified conditions is carried out. The results of phenological observations of plant development, their biometric indicators depending on the genetic features are presented. The indicator of the total yield of table carrots according to the experiment was in the range of 65.6–80.7 t/ha. Saturno F1 had higher and this exceeds the control of Abaco F1 by 15.1 t/ha. In the structure of the yield of this hybrid marketable products are 96.0 % or 77.1 t/ha, which is more than the control of 5 % or 17.1 t/ha. In Saturno F1 non-marketable products 3.6 t/ha, which is 2.0 t/ha less than the control, and the yield of standard products 75.3 t/ha, which is a larger indicator of the experiment and exceeds the control by 17.3 t/ha. Non-standard products amounted to 1.8 t/ha. The productivity of table carrots is significantly influenced by the weight of the root, which, in turn, is affected by its length and diameter. On average, according to the years of research, their weight was at the level of 190–240 g. The roots in Abaco F1, which was the control, were smaller in weight. Larger roots formed in Saturno F1. Hybrids Baltimore F1, Bolivar F1 and Gerada F1 formed roots of 208 g, 218 g and 233 g, respectively. The diameter of the roots of the studied carrot hybrids was 4.6–5.2 cm. They were smaller in Saturno F1 and larger in Baltimore F1. The average values of root diameter for the years of study in Abaco F1 (control) are 5.1 cm; Bolivar F1 4.7 cm, and Gerada F1 5.0 cm, which is less control by 0.4 and 0.1 cm, respectively. An important varietal feature of table carrots is the length of the root. In Abaco F1 it was 18.5 cm. This is the lowest value in the experiment. In Baltimore F1 and Bolivar F1 the roots were formed of almost the same length 19.0 and 19.3 cm, respectively, which is more control by 0.5 and 0.8 cm. In Gerada F1, the roots were 23.2 cm, which is more control by 4,7 cm. Roots of Saturno F1 were longer compared to other variants of the experiment 24.5 cm, which is more control by 6 cm. The suitability of the studied hybrids of table carrots for foreign selection for growing in the conditions of the Right-Bank Forest-Steppe of Ukraine has been established.

CULTIVAR STUDY AND APRICOT SELECTION IN THE ENVIRONMENT OF MIDDLE VOLGA AREA FOREST-STEPPE

2016 ◽  
Vol 1 (2) ◽  
pp. 3-7
Author(s):  
Нечаева ◽  
Elena Nechaeva ◽  
Мельникова ◽  
Natalya Melnikova
Keyword(s):  
Experimental Studies ◽  
The State ◽  
Forest Steppe ◽  
Flower Buds ◽  
State Register ◽  
Study Selection ◽  
Middle Volga ◽  
National Selection ◽  
Variety Testing ◽  
Research Institute

The purpose of research is the creation of apricot fruit varieties able sustainably fructify in the environment of forest-steppe of the Middle Volga Area. Experimental studies were carried out on the Cultivar Collector of Samara Research Institute of Horticulture and Medicinal Plants «Zhiguli Gardens» from 1985 to 2010. Since 2011up to present the work has been performed in a Samara State Agricultural Academy on the basis of horticultural farm Ltd. «Kutuluk» Bogatovskiy district. The objects of research were different varieties of apricot eco-geografic groups of selected forms of national selection and varieties bred in Samara Research Institute «Zhiguli gardens». The study, selection and transfer of hybrid seedlings to the state variety-testing were performed, under the methodology of selection and program of Cultivar study of fruit, berry and nut crops. As a result of long years of breeding under interkind hybridization in Samara Region 9 apricot varieties have been developed and transmitted to state variety-testing , 4 of which have been included into the State Register of the Russian Federation. In a period of organic resting the varieties are able without significant damage of the wood resist severe winters with a minimum temperatures at –39… –40°C. Favorable microzones for apricot cultivating have been identified, the yield, diseases resistance and technological qualities of fruit studied. As a result of 16 years of observations the apricot hasn’t fructified for 6 years. Because of the flower buds frozen in severe winters there was no yield 3 times, 3 times the harvest perished as a result of freezing of flower buds from frost occurred after long thaws. Variety differences of resistance to moniliosis shock were revealed. Such a resistance out of Samara region fruit the sort of Samara apricots has got. Samara apricots are smaller in size than any southern ones, but the biochemical composition and fruit taste compete to the latter.

scholarly journals YIELD PROPERTIES AND ADAPTABILITY OF SAFFLOWER (CARTHAMUS TINCTORIUS) VARIETIES IN THE CONDITIONS OF FOREST-STEPPE OF THE MIDDLE VOLGA REGION

2020 ◽  
Author(s):  
Т.Я. Прахова ◽  
А.Н. Кшникаткина ◽  
А.А. Щанин
Keyword(s):  
Stability Index ◽  
Carthamus Tinctorius ◽  
Climatic Conditions ◽  
Volga Region ◽  
High Yield ◽  
Forest Steppe ◽  
Scientific Center ◽  
Middle Volga Region ◽  
Middle Volga ◽  
The Stability

Целью исследований являлась оценка урожайных свойств и основных параметров адаптивности сортов сафлора красильного в агроклиматических условиях лесостепи Среднего Поволжья. Исследования проводили в 2017-2019 гг. на опытном поле Пензенского института сельского хозяйства. Объектом исследований являлись шесть сортов сафлора красильного. Метеорологические условия периода вегетации характеризовались как засушливые, где гидротермический коэффициент (ГТК) колебался от 0,4 до 0,82 единиц. Индекс условий среды варьировал в пределах от - 0,61 до 0,13 единиц. Наиболее оптимальные условия для развития культуры сложились в 2019 году (Ii – 0,13), где сформировалась наиболее высокая урожайность семян по всем сортам 1,34-1,53 т/га. Высокий урожай отмечен у сортов Заволжский 1 и Александрит, продуктивность которых составила 1,37 и 1,42 т/га, соответственно. Коэффициент изменчивости урожайности составил 6,58-14,19 %. Низкая вариация урожая по годам отмечена у сортов Ершовский 4 и Астрахансий 747 (6,58-7,71 %), что говорит об их стабильности. У данных сортов был наиболее высокий показатель уровня стабильности сорта (ПУСС) и составил 0,26 и 0,22 соответственно. Сорта Заволжский 1, Астраханский 747 и Александрит сформировали крупные семена, масса 1000 семян их достигала в среднем 41,4-41,6 г. Содержание жира в семянках колебалась в пределах 23,70-27,45 %. В условиях Пензенской области лучшими по экологической адаптивности были сорта Заволжский 1 и Александрит, параметры адаптивности которых составили bi = 0,99-1,01; σdr2 = 0,09. Наиболее высокие значения индекса стабильности (0,17 и 0,20) имели сорта Александрит и Ершовский 4, что показывает их большую приспособленность к конкретным условиям. The purpose of the research was to evaluate the yield properties and the main parameters of adaptability of safflower (Carthamus tinctorius) varieties in the agricultural climatic conditions of forest-steppe of the Middle Volga Region. The research was conducted in 2017-2019 on the experimental field of the Federal Scientific Center of Bast Crops. The object of research was the six varieties of safflower (Carthamus tinctorius). Meteorological conditions of the growing season can be characterized as dry; the hydrothermal coefficient (HTC) ranged from 0.4 to 0.82 units. The index of environmental conditions varied from - 0.61 to 0.13 units. The most optimal conditions for the growth of culture were formed in 2019 (Ii – 0.13), where the highest seed yield for all varieties was formed – 1.34-1.53 t/ha. Zavolzhskij 1 and Alexandrit varieties were registered with the high yield, whose productivity was 1.37 and 1.42 t/ha, respectively. The coefficient of yield variability was 6,58-14,19 %. On an annual basis, the low variation in yield was observed in the varieties Ershovskij 4 and Astrahanskij 747 (6.58-7.71 %). This fact indicates the stability of these varieties. These varieties had the highest variety stability level and amounted to 0.26 and 0.22, respectively. Varieties Zavolzhskij 1, Astrahanskij 747 and Alexandrit formed large seeds. The weight of 1000 seeds reached 41.4-41.6 g on an average. The fat content in the achenes ranged from 23.70-27.45 %. In the conditions of the Penza region, in terms of environmental adaptability, the best varieties were Zavolzhskij 1 and Alexandrit, whose adaptability parameters were bi = 0.99-1.01; σdr2 = 0.09. The varieties Alexandrit and Ershovskij 4 had the highest values of the stability index (0.17 and 0.20). This fact shows their greater adaptability to specific conditions.

scholarly journals INFLUENCE OF METEOROLOGICAL CONDITIONS ON ECONOMICALLY VALUABLE FEATURES OF OILSEED FLAX IN THE FOREST-STEPPE ZONE OF THE MIDDLE VOLGA REGION

2020 ◽  
pp. 98-104
Author(s):  
L.А. Kosykh ◽  
◽  
А. V. Kazarina ◽  
Keyword(s):  
Plant Height ◽  
Vegetation Period ◽  
Climatic Conditions ◽  
Meteorological Conditions ◽  
Volga Region ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Middle Volga ◽  
Number Of Seeds ◽  
Sum Of Active Temperatures

The research was carried out in the fields of Povolzhsky research Institute of selection and seed farming named after P. N. Konstantinov in the laboratory of introduction, selection of feed and oilplants in 2016-2019. The soil of the experimental field is typical low-humic medium-sized light clay chernozem. The object of research was a variety of oilseed flax Kinelsky 2000, approved for use in the Middle Volga region. Agro-climatic conditions in the years of research during the growing season differed both in the amount of rainfalls from 74.3 mm in 2019 to 187.0 mm in 2017, and in the temperature conditions from 1776.50 C in 2017 to 2074.00 C in 2018, which allowed to determine objectively the productivity of oilseed flax. The article shows the results of studying the influence of meteorological conditions on the length of vegetation season, yield, oil content in seeds, oil collection per hectare, plant height, the number of capsules per plant, the number of seeds in a capsule and the weight of 1000 seeds. The correlation of the sum of active temperatures, rainfalls and hydrothermal factor (HTF) for the vegetation period with the main economically valuable characteristics of oilseed flax is established. Analyzing the data obtained, it can be concluded that the yield of oilseeds, plant height, number of seeds in the capsule and oil collection per hectare were significantly affected by the amount of rainfalls during the vegetation period and the HTF. The sum of active temperatures affected the length of the vegetation period and the number of capsules on the plant.

scholarly journals OPTIMUM SOWING NORMS OF SUNFLOWER OF RODNIK VARIETY DEPENDING OF MINERAL NUTRITION BACKGROUND ON GREY FOREST SOILS OF THE MIDDLE VOLGA REGION

2018 ◽  
Vol 13 (1) ◽  
pp. 49-52
Author(s):  
Фаик Сафиоллин ◽  
Faik Safiollin ◽  
Рустам Низамов ◽  
Rustam Nizamov ◽  
Салават Сулейманов ◽  
...  
Keyword(s):  
Mineral Nutrition ◽  
Arable Land ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Middle Volga Region ◽  
Middle Volga

We can expect to receive from 0.81 to 0.97 tons of sunflower oil seeds per hectare in the soil-climatic conditions of the forest-steppe zone of the Middle Volga region without the introduction of mineral fertilizers. As the doses of mineral fertilizers are increased, the productivity of 1 hectare of arable land is increased 2.8 times and the gross collections of oilseeds are 2.14 tons per hectare at the non highest background of mineral nutrition, against 0.86 tons per hectare in the control variant of the experiment (without fertilizers). The optimization of seeding rates of the studied culture is of great importance in the formation of highly productive agrocenoses. In the variants of supplementary supply of plants with nutrients, especially when N98P38K124 is introduced, the seeding rate of 70 thousand pieces per hectare of virgin seeds raises the yield of sunflower by 0.51 tons per hectare (a very solid increase in yield), compared with the sowing rate of 60 thousand pieces per hectare.

scholarly journals COMPETITIVE ABILITY AND PRODUCTIVITY OF THE ALFALFA IN AGROCENOSIS WITH AN ASSOCIATED GRASS COMPONENT UNDER THE CONDITIONS OF THE FOREST-STEPPE OF THE MIDDLE VOLGA REGION

2021 ◽  
pp. 30-36
Author(s):  
И.В. Епифанова
Keyword(s):  
Dry Matter ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Standard Samples ◽  
Middle Volga Region ◽  
Bast Fiber ◽  
Growing Period ◽  
Federal Research ◽  
Middle Volga ◽  
Digestible Protein

Селекционная работа с люцерной изменчивой в ФГБНУ «Федеральный научный центр лубяных культур» направлена на достижение равномерного распределения кормовой массы по укосам в течение вегетационного периода, быстрого отрастания весной и после укосов, повышение фитоценотической пластичности, продуктивного долголетия и устойчивости к режиму использования. Объектом исследований являются образцы люцерны изменчивой, высеваемые в смеси с кострецом безостым в питомнике конкурсного сортоиспытания. Сбор сухого вещества люцерно-кострецовой смеси находился в тесной зависимости от сбора сухого вещества люцерны. В среднем за четыре года пользования образцы – Популяция 2, Корнеотпрысковая + корневищная, Корневищная 1 и Корнеотпрысковая 1 сформировали в смешанном посеве 1,39…1,68 т/га сухого вещества бобового компонента (люцерны), что на 6,3…28,6 % выше стандарта. Лучшие из этих образцов обеспечили и более высокую общую продуктивность смесей – сформировали 5,80…5,85 т/га сухого вещества, что на 5,5…6,4 % выше стандарта. Наибольший выход переваримого протеина 0,83…0,88 т/га (+ 6,5…12,4 % к st.), при содержании переваримого протеина в одной кормовой единице 206…209 г (+ 14,9…16,8 % к st.), сформировали образцы Популяция 2 и Корнеотпрысковая 1. На урожайность образцов основное влияние оказали скорость роста травостоя в межукосные периоды (dух = 77 %; r = 0,88±0,25) и устойчивость к почвенно-климатическим условиям (dух = 79 %; r = 0,89±0,26). Способность к послеукосному отрастанию на 42 % повлияла на сбор сухого вещества (dух = 42 %; r = 0,65±0,02). Breeding work with the changeable alfalfa in the FSBSI «Federal Research Center for Bast Fiber Crops» is aimed at achieving a uniform distribution of feed mass on mowing during the growing period, rapid plant regrowing in spring and after mowings, increasing the phytocoenotic plasticity, productive longevity, and resistance to the cultivation regime. The object of research is presented by samples of the changeable alfalfa, sown in a mix with the awnless brome in the field of competitive variety trial. The gathering of dry matter of the alfalfa-brome mixture was closely related to the gathering of dry matter of alfalfa. On average, over four years of the use, samples – Populyatsiya 2, Korneotpryskovaya + Kornevischnaya, Kornevischnaya 1 and Korneotpryskovaya 1 – gave 1.39...1.68 t/ha of dry matter of the legume component (alfalfa) in a mixed planting, which is 6.3...28.6% higher than the standard. The best of these samples also provided the higher overall productivity of the mixtures. They gave 5.80...5.85 t/ha of dry matter, which is 5.5...6.4% higher than the standard. Samples Populyatsiya 2 and Korneotpryskovaya 1 formed the highest yield of digestible protein of 0.83...0.88 t/ha (+ 6.5...12.4 % to st.), with the content of digestible protein in one feed unit of 206...209 g (+ 14.9...16.8 % to st.). The yield of the samples had the main impact by the growth rate of the herbage in the inter-mowing periods (dух = 77 %; r = 0,88±0,25) and resistance to soil and climatic conditions (dух = 79 %; r = 0,89±0,26). The ability to post-mowing regrowth had an impact on the dry matter gathering by 42 % (dух = 42 %; r = 0,65±0,02).

scholarly journals Comparative characteristics of yellow alfalfa accessions in the nursery of competitive variety testing

2021 ◽  
Vol 901 (1) ◽  
pp. 012031
Author(s):  
S V Saprykin ◽  
N V Saprykina ◽  
V N Zolotarev ◽  
O N Lyubtseva
Keyword(s):  
Perennial Grasses ◽  
Limiting Factor ◽  
Forest Steppe ◽  
Forage Production ◽  
Forage Crops ◽  
New Variety ◽  
High Productivity ◽  
Economically Valuable Traits ◽  
New Varieties ◽  
Agricultural Regions

Abstract In the context of the progressive trend of aridization of the climate of the main agricultural regions in the forest-steppe and steppe zones, the problem of increasing and stabilizing the high productivity of forage crops is becoming more acute. Yellow alfalfa (Medicago falcata L.) is highly resistant to abiotic stresses such as drought and low temperatures. This crop is resistant to extremely stressful conditions for cultivation in arid conditions, high production potential for the production of various types of bulky forage. The limiting factor of the effective economic use of yellow alfalfa in the Central Black Earth region of Russia is the insufficient number of zoned varieties, only three. The zoned varieties of alfalfa that exist today do not fully meet the requirements of modern forage production, and the tasks of developing new varieties with increased productivity, competitive ability in grass mixtures and increased longevity are becoming urgent. A highly productive variety of yellow alfalfa Pavlovskaya 7 was previously created at the Voronezh Experimental Station for perennial grasses. The Pavlovskaya 7 variety is characterized by high resistance to fungal diseases and mycoplasmosis, drought resistance, and long (up to 12 years) productive longevity. Currently, the station is completing selection work to develop a new variety of yellow alfalfa with a complex of economically valuable traits and properties for conditions of insufficient moisture.

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