scholarly journals Screening of flax gene pool samples by fiber yield and their adaptability to the conditions of the Central Non-Black Earth Region

2020 ◽  
Vol 21 (6) ◽  
pp. 688-696
Author(s):  
E. A. Traburova ◽  
T. A. Rozhmina ◽  
I. A. Andreeva
Keyword(s):  
Weather Conditions ◽  
Climatic Conditions ◽  
Flax Fiber ◽  
Raw Material ◽  
Material Base ◽  
Fiber Flax ◽  
Average Value ◽  
Stable Yield ◽  
Growing Conditions ◽  
Favorable Weather

The research was carried out in 2017-2019 in the conditions of the Smolensk region on sod-podzolic medium loamy slightly acidic soil. The study included 25 varieties and lines of fiber flax of domestic and foreign selection. The mid-ripening variety Impuls (Russia) was used as a standard, whose yield, depending on the test year, was 1.07...1.29 t/ha. As shown by the calculations of the index of environmental conditions, the most favorable conditions for fiber flax developed in 2018 (Ij = +0.46), and stress conditions, caused by excessive moisture during the critical period of plant growth and development (GTC = 1.7), in 2017 (Ij = -0.55). On average, over the years of research, the yield of fiber, depending on the genotype, varied in the range of 1.00...1.97 t/ha. The highest yield on average for three years of testing (1.78...1.97 t/ha) and average yield in contrasting conditions were characteristic of the varieties Cesar, Sinel, Dobrinya (Russia), Marylin (Holland), Andrea, Altea (France). Under favorable weather conditions (2018), a high potential for the yield of flax fiber compared to the average value (121.5...133.3 %) was obtained in the varieties Cesar, Dobrinya, Sinel (Russia), Belita (Belarus), Andrea, Altea (France), Marylin (Holland). Under stressful conditions (2017), high adaptability was found in the samples of the Russian selection Cesar (173.4 %), Sinel (168.0 %), Dobrinya (151.1 %), Tost 3 (128.7 %), Alfa, Universal (127.7 %). The varieties Surskiy (bi = 2.2), Belita (Belarus), l. 323-02 (Russia), Marylin (Holland) − 1.7, Alexandrit (Russia), Andrea (France) – 1.5. Were characterized by high responsiveness to cultivation conditions (bi> 1). Russian varieties with a relatively stable yield: Cesar, Sinel – 0.7, Alpha – 0.6, Lider, Smolich, Tost 3, Universal – 0.5, Impuls – 0,2 did not show reaction to changes in growing conditions (bi <1). Thus, the domestic varieties Cesar, Dobrinya and Sinel have the highest yield of flax fiber and adaptability to the soil and climatic conditions of the Central Non–Black Earth Region. Expansion of fiber flax acreage under these varieties will provide strengthening of the domestic raw material base.

scholarly journals The effect of hydrothermal coefficient on productivity of maize hybrids of various groups of ripeness

2020 ◽  
pp. 8-12
Author(s):  
G. Ya. Krivosheev ◽  
N. A. Shevchenko
Keyword(s):  
Agricultural Research ◽  
Correlation Coefficients ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Climatic Conditions ◽  
Hydrothermal Coefficient ◽  
Maize Hybrids ◽  
Average Value ◽  
Early Ripening ◽  
Growing Conditions

The improvement of the breeding programs, selection of the optimal group of ripeness depends on the soil and climatic conditions for which varieties and hybrids are developed. One of the most important indicators of climatic conditions is the hydrothermal coefficient (HTC). The purpose of the current study was to analyze the effect of HTC on the productivity of maize hybrids of various groups of ripeness. The studies were carried out in 2014–2019 at the Agricultural Research Center “Donskoy” located in the southern zone of the Rostov Region, characterized by unstable moisture. The objects of the study were 96 interlinear maize hybrids of three groups of ripeness, namely an early ripening group (FAO 150), a middle-early ripening group (FAO 200) and a middle ripening group (FAO 300). There was a systematic use of variants in the trials. The weather conditions of the years 2014 and 2018 could be estimated as arid (HTC = 0.32–0.57). The years 2015, 2016, 2017 and 2019 were of medium aridity (HTC = 0.58–0.89). The HTC determined only for the entire vegetation period did not allow estimating objectively the growing conditions. There has been required a more detailed analysis of the HTC for the periods (months) of vegetation. On average, over the years of study, the middle ripening maize hybrids were characterized with the largest grain productivity (3.98 t/ha). The early ripening maize hybrids were characterized with the smallest productivity (3.31 t/ha). The middle-early ripening hybrids were characterized with the average value (3.80 t/ha). However, in different years, the maximum grain yields were produced by the hybrids of various groups of ripeness, including by the early ripening varieties, that depended on the amount of HTC in different vegetation periods. There have been identified average positive correlation coefficients between the HTC values and maize hybrids’ productivity (r = 0.64–0.74). The use of maize hybrids of various groups of ripeness can stabilize the gross harvest of maize.

scholarly journals Comparative assessment of plasticity, stability and homeostasis based on ‘1000 grain weight’ in winter rye cultivars developed at VIR

2020 ◽  
Vol 181 (3) ◽  
pp. 56-63
Author(s):  
N. I. Aniskov ◽  
I. V. Safonova
Keyword(s):  
Target Material ◽  
Climatic Conditions ◽  
Grain Weight ◽  
Winter Rye ◽  
Grain Development ◽  
Average Value ◽  
Wide Range ◽  
Stable Yield ◽  
Growing Conditions ◽  
1000 Grain Weight

Background. In Russia, winter rye is a crop that provides food for people and feed for animals. Despite the obvious advantages of rye (high winter hardiness and drought resistance, plus the ability to grow in areas with poor soils and adverse climatic conditions), its area of cultivation has been reduced from 29 million hectares in 1913 to 872,000 ha in 2019. This situation can be improved by introducing rye cultivars with a stable yield of large grain under diverse growing conditions into commercial production.Materials and methods. The experimental part of the work was carried out in 2012–2017, in the experimental fields of Pushkin and Pavlovsk Laboratories of VIR. The target material was the accessions of low-pentosan winter rye cultivars developed at VIR. Data processing was performed using the analysis of variance according to B. A. Dospekhov. Adaptability and stability levels were calculated using the methods by S. A. Eberhart, W. A. Russell and L. A. Zhivotkov, those of plasticity and stability using the technique by G. C. Tai, the multiplicativity coefficient according to V. A. Dragavtsev, and the coefficient of homeostasis according to V. V. Hangildin, on the basis of ‘1000 grain weight’.Results and conclusion. The 1000 grain weight in the studied accessions varied from 30.0 to 48.2 g, with the average value of 40.8 g. The effect of the ‘test year’ factor on grain size was estimated at 65.5%, and of the ‘cultivar’ factor at 20.1%. The best conditions for large grain development were observed in 2013, 2015 and 2017 (45.7, 42.5 and 41.3 g, respectively). The most plastic, stable and homeostatic winter rye accessions were: Rushnik 2 (k-11820), ‘Krasnoyarskaya universalnaya’ (k-11818), ‘Bereginya’ (k-11822), Nika 3 (k-11823), and ‘Novaya Era’ (k-11814). The cultivars Rushnik 2, Nika 3, ‘Krasnoyarskaya universalnaya’, ‘Bereginya’ and ‘Novaya Era’ demonstrated high adaptability and can produce large grain under a wide range of varying environmental conditions. 

scholarly journals Stress-resilient maize for climate-vulnerable ecologies in the Asian tropics

2020 ◽  
pp. 1264-1274
Author(s):  
P.H. Zaidi ◽  
Thanh Nguyen ◽  
Dang N. Ha ◽  
Suriphat Thaitad ◽  
Salahuddin Ahmed ◽  
...  
Keyword(s):  
Climate Change ◽  
Agricultural Research ◽  
Weather Conditions ◽  
Climatic Conditions ◽  
Yield Potential ◽  
Specific Situation ◽  
Environment Interaction ◽  
Maize Germplasm ◽  
Growing Conditions ◽  
Variable Weather

Most parts of the Asian tropics are hotspots of climate change effects and associated weather variabilities. One of the major challenges with climate change is the uncertainty and inter-annual variability in weather conditions as crops are frequently exposed to different weather extremes within the same season. Therefore, agricultural research must strive to develop new crop varieties with inbuilt resilience towards variable weather conditions rather than merely tolerance to individual stresses in a specific situation and/or at a specific crop stage. C4 crops are known for their wider adaptation to range of climatic conditions. However, recent climatic trends and associated variabilities seem to be challenging the threshold limit of wider adaptability of even C4 crops like maize. In collaboration with national programs and private sector partners in the region, CIMMYT-Asia maize program initiated research for development (R4D) projects largely focusing on saving achievable yields across range of variable environments by incorporating reasonable levels of tolerance/resistance to major abiotic and biotic stresses without compromising on grain yields under optimal growing conditions. By integrating novel breeding tools like - genomics, double haploid (DH) technology, precision phenotyping and reducing genotype × environment interaction effects, a new generation of maize germplasm with multiple stress tolerance that can grow well across variable weather conditions were developed. The new maize germplasm were targeted for stress-prone environments where maize is invariability exposed to a range of sub-optimal growing conditions, such as drought, heat, waterlogging and various virulent diseases. The overarching goal of the stress-resilient maize program has been to achieve yield potential with a downside risk reduction.

AGROBIOLOGICAL FEATURES OF A NEW VARIETY OF SPRING BARLEY

1970 ◽  
pp. 56-58
Author(s):  
O. B. Batakova ◽  
V. А. Korelina ◽  
I. V. Zobnina
Keyword(s):  
Spring Barley ◽  
Economic Effect ◽  
Statistical Processing ◽  
Stability Index ◽  
Weather Conditions ◽  
Climatic Conditions ◽  
Federal State ◽  
New Variety ◽  
Growing Conditions ◽  
The Stability

The selection work has been carried out on the base of the Primorskiy branch of the Federal Center for Integrated Arctic Research of the Russian Academy of Sciences (FCIARctic) in 2005-2016, in a selection seven-field crop rotation. Various weather conditions contributed to a complete and comprehensive assessment of the selected sample. Data on agrometeorological research were provided by the Federal State Budgetary Institution “Northern UGMS” of the Hydrometсenter at the post of Kurtsevo. Assessment of breeding material was carried out by the main breeding valuable traits, taking into account the length of the growing season, resistance to lodging and grain yield according to the methodology of the State Commission for the Testing of Crops (1985).  Statistical processing of the experiment results were carried out using the genetic and selection software package AGROS version 2.07. A new variety of spring fodder barley “Kotlas” with increased adaptability for variable growing conditions was developed, it intended for cultivation in extreme climatic conditions of the Far North as an early ripening, productive, adaptive to unfavorable environmental factors to obtain concentrated feed for livestock and poultry. The variety is immune to net blotch of the Arkhangelsk population. The stability index (L) of the variety is 53. The new variety usage will increase the yield of spring barley, increase the economic efficiency of using the variety to 15%, the economic effect of introducing the variety per unit volume of production is 7.85 thousand rubles.

Virus resistance of potato genetic diversity under climate change

2019 ◽  
pp. 104-115
Author(s):  
R.O. Bondus ◽  
Yu.V. Kharchenko ◽  
L. T. Mishchenko
Keyword(s):  
Virus Resistance ◽  
Viral Infections ◽  
Climatic Conditions ◽  
Field Resistance ◽  
Starting Material ◽  
Viral Diseases ◽  
Forest Steppe ◽  
Intense Mass ◽  
Growing Conditions ◽  
Favorable Weather

Aim. To determine the resistance of potato gene pool accessions to viruses in the southern forest-steppe of Ukraine and to select starting material for breeding. Results and Discussion. Our analysis of the climate changes for the period of 1955–2018 revealed that the unfavorable weather/climatic conditions during spring planting of tubers, as a result of which weakened plants were more easily depressed by viral infections, were the primary cause of potato cacogenesis in the southern forest-steppe of Ukraine. It was found that significant deviations from the multi-year average temperature and amount of precipitation contributed to the intense mass manifestation of symptoms of viral diseases or under favorable weather/climatic conditions, on the contrary, viral diseases were not visually detected. Studies have shown that the main factor in resistance to viral degeneration of potato varieties is the genotype, and its development and expression depend on growing conditions. It is also important to take into account emergence of new strains of viruses requiring continuous monitoring. Virus resistance of the varieties was visually determined. In order to identify viruses and study their morphology, electron microscopy, EIA and PCR were used. Conclusions. As a result of the study, sources of high field resistance to leaf-rolling, potato rugose and streak mosaics, which are valuable starting material for further practical use in breeding, as well as in scientific and educational programs, were identified.

scholarly journals Construction of affordable housing using local building materials

2020 ◽  
pp. 154-165
Author(s):  
V. V. Tytok
Keyword(s):  
Affordable Housing ◽  
Industrial Waste ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Climatic Conditions ◽  
Raw Material ◽  
Material Base ◽  
Long Distance ◽  
The Cost

Trends in housing development should be based on the geographical location and climatic conditions of the region, national characteristics and culture, natural resources, transport links, density and living standards. Construction significantly affects the socio-economic development of the region. In this regard, increasing the sustainability of the regional construction complex, which is based on the building materials industry and the construction industry is a relevant and promising area of research.Demand in the building materials market continues to stimulate increased interest in the development of new types of efficient and inexpensive building materials. Since construction is one of the most material-intensive sectors of the economy, which consumes a large number of construction materials and products, various measures are taken to reduce their cost.In this regard, recently in the construction seek to make greater use of local building materials. This allows you to unload transport from long-distance transportation and significantly reduces the cost of construction. However, the building materials industry cannot develop by focusing only on natural sources of raw materials, as the costs of their extraction and processing are constantly growing. The use of man-made waste provides production with a rich source of cheap and often already prepared raw materials, which reduces the cost of manufacturing building materials.One of the promising areas in the construction of affordable housing is the maximum use of building materials and products that can be obtained from local raw materials and industrial waste. As local building materials are offered: clay, sand, soil, straw, reeds, flax. The use of industrial waste solves both environmental, fuel and energy problems and expands the raw material base of building materials.

scholarly journals Trends in the improvement of methods and equipment for the assessment of flax raw material (review)

2020 ◽  
Vol 21 (6) ◽  
pp. 639-652
Author(s):  
N. S. Shimanskaya ◽  
I. V. Uschapovsky ◽  
S. V. Prokofiev
Keyword(s):  
High Speed ◽  
Fiber Quality ◽  
The United States ◽  
Quality Parameters ◽  
Flax Fiber ◽  
Raw Material ◽  
Infrared Spectrometry ◽  
Fiber Flax ◽  
Technological Value ◽  
Russian Scientific Research Institute

The article provides the results of the analysis of methods and instrument equipment for the assessment of quality parameters of retted flax straw and flax fiber. The traditional methods and equipment are presented. The devices developed for flax fiber quality testing used in the Russian Federation, the Republic of Belarus and Ukraine are described. Methods, equipment and modern technologies used to determine the quality of flax fiber in European countries, Canada and the United States are provided. The role of modern developments to improve the efficiency of flax production is noted. Promising methods and devices for determining the main quality indicators are identified. The use of the method of automated forecasting of technological value of fiber flax stalks makes it possible to conduct a comprehensive quality assessment based on morphological and anatomical analysis. Modern capabilities of electronic scanning microscopy provide the control of the chemical composition and structural elements of flax stems at various stages of growth and development, as well as during maceration. The use of infrared spectrometry provides high accuracy in determining humidity, strength, fiber content, and long fiber yield.However, along with high-precision equipment, there is the need for equipment and devices that allow determining the main technological indicators in the field with minimal labor, time and money costs. Research in this direction was previously carried out at the All-Russian Scientific Research Institute of Bast Crops Processing and in Kostroma State Technological University. However, the developments of the scientists were not tested in the production process and were not mass-produced. High speed and objective measurement methods will provide the accurate indicators during the process of maceration and primary processing of retted straw that will increase the technological value and competitiveness of flax fiber.

Terms of sowing forage crops for haylage production under the conditions of Central Yakutia

2022 ◽  
pp. 3-9
Author(s):  
E. S. Pesterevа ◽  
Keyword(s):  
Raw Materials ◽  
New Technology ◽  
Climatic Conditions ◽  
Raw Material ◽  
Material Base ◽  
Forage Crops ◽  
Entire Area ◽  
Lena River ◽  
The Third ◽  
Central Yakutia

In recent years the agricultural production in the Republic of Sakha (Yakutia) has been introducing the technology of haylage production, which can replace part of the silage and hay in the ration of animals. However, stable raw materials of herbage are not enough for the technology of haylage production in Yakutia. Natural forage lands cannot provide a new technology of haylage production with herbage, since the entire area of haymaking goes to hay harvesting. Therefore, the selection of forage crops to create a reliable raw material base for haylage is a very relevant research topic. The purpose of the research was to study the terms of sowing forage crops for haylage production under the conditions in the Central Yakutia. The research has been carried out in the research and production permanent out-station in the M. G. Safronov Yakut Scientifi c Research Institute of Agriculture for three years. The experimental site was located on the second above-fl oodplain terrace of the Lena River Valley. The objects of research were the following varieties of zoned annual crops – oats of Pokrovsky variety 9, peas of Capital variety, spring vetch of Priobskaya variety 25, barley of Tammy variety. It has been found as a result of research that in the soil and climatic conditions in the Central Yakutia for the production of haylage for plant growth and development, dynamics of accumulation of dry matter, yield and nutritional qualities, the most effective mixtures are: vetch (1,2 million pcs/ha) + oats (2,5 million pcs/ha) and peas (0,8 million pcs/ha) + oats (2,5 million pcs/ha) germinating seeds. As the result of the conducted research, the optimal terms for sowing annual grasses for haylage have been established such as the 1st term (sowing in the third decade of May, harvesting in the first decade of August), the 2nd term (sowing in the second decade of June, harvesting in the third decade of August), the 3rd term (sowing in the first decade of July, harvesting in the first decade of September) in the phase of milk-wax ripeness in cereals and in the phase of fruit formation in legumes.

scholarly journals Results of experiment with Potentilla anserina L. (Rosaceae Juss.) in Concept "Polycentric Model of Plant"

2020 ◽  
Vol 19 (2) ◽  
pp. 159-167
Author(s):  
S. V. Fedorova
Keyword(s):  
Mineral Nutrition ◽  
Seasonal Changes ◽  
Weather Conditions ◽  
Shoot Formation ◽  
Climatic Conditions ◽  
Climatic Factor ◽  
Potentilla Anserina ◽  
Favorable Weather ◽  
Growth Indicators ◽  
Innovative Concept

The article reviewed the data of an old experiment with Potentilla anserina in planting with a density of1, 5 and 9 ind./ m2, conducted in 1996 under natural climatic conditions on stationary sites. The study was conductedin innovative Concept “Polycentric Mmodel of Plant.” Changes in the growth indicators of the polycentric system ofthe plant from June to October were revealed in connection with seasonal changes in the climatic factor. This is thesum of the temperatures and the amount of precipitation between the periods of control observations of the plant. Themost favorable weather conditions for the formation of shoot-formation centers, mineral-nutrition centers and generationcenters as elements of Polycentric Model of Plant are determined. The maximum number of stolons, shoot-formationcenters, mineral-nutrition centers, and generation centers has been determined that can actively function on an area of 4square meters in plantings of different densities.

scholarly journals Дестабилизация вин. Кристаллообразование калиевых солей

2019 ◽  
pp. 261-266
Author(s):  
Nonna Gnilomedova ◽  
Nadezhda Anikina ◽  
Sofia Chervyak
Keyword(s):  
Volume Fraction ◽  
Ph Value ◽  
Raw Materials ◽  
Climatic Conditions ◽  
Diagnostic Methods ◽  
Raw Material ◽  
Crystal Formation ◽  
Material Base ◽  
Production Stages ◽  
Technological Processing

Среди различных причин потери товарного вида вин наиболее частой является кристаллическая дестабилизация за счет выпадения виннокислых солей. В большинстве случаев осадок представлен калиевой, реже - кальциевой солью. Изменение климатических условий, наблюдаемое за последнее время, расширение сырьевой базы, внедрение новых приемов возделывания винограда и технологии его переработки, а также использование современных вспомогательных материалов для виноделия влияет на коллоидный и минеральный состав вин, в результате чего общепринятые способы кристаллической стабилизации, а также методы диагностики вин на склонность к кристаллообразованию являются недостаточно эффективными. В данном литературном обзоре изложены современные представления о механизмах формирования в винах микро- и макрокристаллов битартрата калия. Показано, что кристаллическая дестабилизация вин зависит от множества разнонаправленно влияющих факторов, таких как температура вина, объемная доля этилового спирта, содержание коллоидных веществ, а также катионно-анионного состава, обусловливающего значение рН, ионную силу раствора и степень диссоциации органических кислот. Приведены количественные выражения и взаимосвязи содержания катионов калия и анионов винной кислоты, дестабилизирующих систему вина, с агротехническими особенностями возделывания винограда и технологическими приемами его переработки. Обоснована необходимость разработки новых методологических подходов для контроля и регулирования кристаллической стабильности вин на основе изучения качественного состава сырья и продуктов его переработки на всех этапах производства.Among the various reasons why wines loose marketable condition, crystalline destabilization due to the loss of tartrate salts is the most frequent one. In most cases, the sediment is represented by potassium, less often - by calcium salt. The change in climatic conditions observed recently, the expansion of the raw material base, introduction of new grapevine cultivation methods and grapes processing technology, as well as the use of modern auxiliary materials for winemaking affect the wine colloidal and mineral composition. This makes the conventional methods of crystalline stabilization less effective, while diagnostic methods to determine wine tendency to crystal formation are insufficient. This literature review presents modern understanding of the mechanisms of potassium bitartrate micro- and macrocrystals formation in wines. It has been demonstrated that crystalline destabilization of wines depends on many diverse factors: wine temperature, the volume fraction of ethyl alcohol, the colloidal substances content, the cation-anion composition determining the pH value, the ionic strength of the solution and the degree of organic acids dissociation. The quantitative expressions and interrelationships of the potassium cations and tartaric acid anions content destabilizing the wine system are given along with agrotechnical peculiarities of grapevine cultivation and grapes technological processing methods. An argument was made for the new methodological approaches to control and regulate the crystalline stability of wines by studying the qualitative composition of the raw materials and products of their processing at all production stages.

Sign in / Sign up

Export Citation Format

Share Document