scholarly journals Genotipuri noi de grâu comun de toamnă – productivitatea și calitatea boabelor

2021 ◽  
Author(s):  
Galina Lupascu ◽  
◽  
Svetlana Gavzer ◽  
Angela Rudacova ◽  
Ala Cherdivara ◽  
...  
Keyword(s):  
Common Wheat ◽  
Nutritional Value ◽  
Practical Interest ◽  
Extreme Drought ◽  
Individual Selection ◽  
Structural Elements ◽  
Drought Conditions ◽  
Great Practical Interest ◽  
Selection Of

The article presents data on the structural elements of the spike and the biochemical content of the grains in newly created common wheat winter genotypes, cultivated in extreme drought conditions of 2020. It was concluded that the lines and cultivars created by hybridization and individual selection of segregating populations are well adapted to drought and have a high nutritional value of grains which is of great practical interest.

scholarly journals RELAXATION OF EDGE DISLOCATIONS IN METALS UNDER THE ACTION OF EXTERNAL STRESSES

2020 ◽  
pp. 83-88
Author(s):  
B.V. Borts ◽  
S.F. Skoromnaya ◽  
V.I. Tkachenko
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Practical Interest ◽  
Maximum Amplitude ◽  
Functional Materials ◽  
Structural Elements ◽  
Resonance Frequencies ◽  
External Stresses ◽  
Great Practical Interest ◽  
Edge Dislocations

The study of the relaxation of edge dislocations (ED) in metals under the action of alternating external stresses of various natures is of great practical interest for estimating of workability of structural elements and functional materials of nuclear power and thermonuclear fusion power plants. In the model of the inhomogeneous dissipative sine – Gordon equation for different values of the amplitude and frequency of the external harmonic force, as well as for different values of dislocation friction, the nonlinear dynamics of ED with fixed ends is studied numerically. The formation of breather-type solitons on the ED is shown, the maximum amplitude of which decreases with increasing dislocation friction. The resonance dependence of the kinetic energy of ED oscillations on the frequency of the external field is described. It has a maximum value for the resonant frequency and decreases with increasing numerically found resonance frequencies.

Selection of large seed and high yielding lines of bread wheat for drought conditions

2021 ◽  
Vol 11 (4) ◽  
pp. 595-606
Author(s):  
Dilmurodov Sherzod Dilmurodovich ◽  
Shodiyev Sherzod Shomiljonovich ◽  
Abdumajidov Jaloliddin Raxmatullaevich ◽  
Hayitov Azizbek Sherkulovich ◽  
Mavlanov Javokhir Sarvar Ogli
Keyword(s):  
Bread Wheat ◽  
Large Seed ◽  
Drought Conditions ◽  
Selection Of

scholarly journals Protection of Transport Nodes and Resistibility of Pipeline Systems

2019 ◽  
Vol 17 (2) ◽  
pp. 218-229
Author(s):  
I. A. Tararychkin
Keyword(s):  
Emergency Situation ◽  
Simulation Method ◽  
Structural Elements ◽  
Pipeline Transport ◽  
Structural Synthesis ◽  
System Node ◽  
Separate System ◽  
Composition Structure ◽  
Simultaneous Transition ◽  
Selection Of

The analysis has been carried out and the laws of occurrence of emergency threats at pipeline transport facilities associated with the sequential damage of structural elements have been established. When an emergency situation develops, blocking of a separate system node is associated with simultaneous transition to a state of inoperability of all pipelines converging into the zone of that node. Such damage to the point element of the network structure prevents product flows from passing through that point. The ability of a system to withstand a progressive blocking depends on its composition, structure, and is characterized by an indicator of persistence, the value of which is calculated using a simulation method. An example of the use of cluster schemes in solving the problem of structural synthesis and the selection of the best protection option for a pipeline transport system has been considered.

scholarly journals Theoretical justification of the possibility of selection perspective individuals in variety populations of self-pollinators on the example of soybean

2021 ◽  
Vol 186 (2) ◽  
pp. 31-40
Author(s):  
V.M. Lukomets ◽  
◽  
S.V. Zelentsov ◽  
E.V. Moshnenko ◽  
◽  
...  
Keyword(s):  
F1 Hybrids ◽  
Individual Selection ◽  
Breeding Methods ◽  
Morphometric Traits ◽  
Phenotypic Differences ◽  
Soybean Cultivars ◽  
Oil Crops ◽  
Experimental Base ◽  
Modified Formula ◽  
Selection Of

Breeding practice shows that soybean cultivars developed by synthetic breeding methods are submitted for the state variety testing in the F10–F11 generation. But the newly bred cultivars are not completely homozygous. The studies were related to the determination of the frequencies of formation of atypical and suitable for selection promising individuals in soybean cultivars developed by synthetic breeding methods. The studies were carried out in 2019–2020 at the central experimental base of V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar. In the experiments, we used cultivars of our own breeding: Selena, Puma, Vita, Irbis, Bars, Barguzin and Sayana with a total age of 11–15 years from the year F1 hybrids were obtained. To confirm the practical possibility of isolating individuals differing from the phenotypic varietal norm in varietal populations, a complete examination of the crops of all studied soybean cultivars was carried out. In the fields of all cultivars, individuals were identified that differed from the varietal norm phenotypically. Mostly, the isolated individuals were distinguished by an increased plant height, a more powerful habit, an increased number of beans per plant, and resistance to lodging. The facts of the detection of atypical individuals with improved morphological traits in soybean cultivars of different ages confirm the possibility of individual selection of plants in varietal populations based on morphometric traits. The statistical dynamics of a decrease in heterozygous individuals in increasing generations in a hybrid self-pollinating population in terms of the number of paired genes, by which the parental forms can hypothetically differ, were calculated using the modified formula of S. Borojević (1984). It was found that the frequency of formation of phenotypically different individuals in varietal populations of soybeans depends on the total age of the cultivar. The frequency of the formation of morphologically different individuals decreases with an increase in the number of generations of the cultivar. Individual selection of individuals with positive phenotypic differences from the varietal norm can be recommended as an additional source of promising and practically homozygous starting material for accelerated analytical breeding of soybean.

scholarly journals ALGORITHMS FOR SOLVING PROBLEMS OF PRE-TRANSFUSION IMMUNOHEMATOLOGICAL TESTING

2019 ◽  
Vol 64 (2) ◽  
pp. 222-233
Author(s):  
I. A. Pashkova
Keyword(s):  
At Risk ◽  
Blood Transfusion ◽  
Individual Selection ◽  
Donor Blood ◽  
Effective System ◽  
Patients At Risk ◽  
Screening And Identification ◽  
Transfusion Complications ◽  
Transfusion Reactions ◽  
Selection Of

Introduction. Screening and identification of anti-erythrocyte alloimmune antibodies in recipients is an important and necessary step in their testing before blood transfusion.Aim. To formulate algorithms that could facilitate the process of pre-transfusion immunohematological testing.General findings. Such a testing allows the development of post-transfusion reactions and complications to be avoided. The presence of alloantibodies of various specificities and autoantibodies in the test blood may complicate pre-transfusion testing and require the use of additional methods (adsorption, elution, etc.). The author has proposed an effective system of algorithms for conducting immunohematological studies, which can be used to identify patients at risk of developing immune post-transfusion complications and ensure an individual selection of compatible donor blood-transfusion products.

scholarly journals Nutritional Characterization of a Traditional Cultivar of Tomato Grown Under Organic Conditions—cv. “Malacara”

2022 ◽  
Vol 8 ◽  
Author(s):  
María D. Raigón ◽  
María D. García-Martínez ◽  
Octavian P. Chiriac
Keyword(s):  
Organic Farming ◽  
Nutritional Value ◽  
Fruit Weight ◽  
Organic Production ◽  
Local Varieties ◽  
Yellow Color ◽  
Organic Farmers ◽  
Tomato Cultivars ◽  
Selection Of

The loss of genetic diversity due to the replacement of local tomato (Solanum lycopersicum L.) varieties by improved cultivars has been mitigated in many cases by the good work of organic farmers in maintaining local agricultural biodiversity. In parallel to these initiatives, in recent years, consumers have developed an increasing awareness of both food-related health, environmental issues, and food demand to recover the flavors of the past. In the case of tomatoes, these attributes (nutritional, organoleptic, social, and environmental) are closely related to organic production using local varieties. “Malacara” tomato is an example of a local variety. Coming from Sierra de Cádiz, it is a varietal type called “Cuelga” (“for hanging,” because the tomato trusses are hung from beams in the farmhouses). Cultivated and harvested in the open air during the summer months, these tomatoes are commercialized and consumed in the winter. Historically, this variety has enabled the fresh consumption of tomatoes during the winter, without the need to force cultivation. It is highly appreciated in the local cuisine and is the basis for sauces figuring in typical dishes. Its characteristic traits are small, pallid fruits, and long shelf life. The main objective of this work has been to typify two Malacara tomato cultivars (red and yellow color) grown under organic farming conditions, through the characterization of morphological, nutritional, and volatile parameters. The main differences are due to morphological parameters (fruit weight and color of the exocarp and endocarp). Other characteristics such as the content of ash, fiber, moisture, the concentration of iron, magnesium, and calcium, and content of lycopene are different between both cultivars. This study provides information on the nutritional and aromatic composition of two Malacara tomato cultivars, differentiated by their color and grown under organic farming conditions. The results add value to the native horticultural heritage and can aid in the selection of tomato varieties suitable for a sustainable production system and to produce tomatoes with high nutritional value and rich in aroma.

scholarly journals Изучение увологических и агробиологических показателей сорта винограда Кокур белый на различных подвоях для проведения клоновой селекции

2019 ◽  
pp. 105-108
Author(s):  
Nataliya Studennikova ◽  
Zinaida Kotolovets ◽  
Nadezhda Tikhomirova ◽  
Natalia Urdenko
Keyword(s):  
Training System ◽  
Large Percentage ◽  
Individual Selection ◽  
Grapevine Variety ◽  
Points Of View ◽  
Relative Productivity ◽  
Very High ◽  
Production Conditions ◽  
Selection Of

Представлены результаты работы по изучению влияния филлоксероустойчивых подвоев Берландиери × Рипариа Кобер 5ББ и Берландиери × Рипариа Телеки 4Б (СО4) на агробиологические и увологические показатели крымского технического белоягодного аборигенного сорта винограда Кокур белый в условиях Алуштинской долины (филиал «Алушта» ФГУП «ПАО «Массандра»). Для проведения исследований были выбраны: участок № 361, площадью 4,49 га, на котором произрастают кусты винограда Кокур белый, привитые на подвое Берландиери × Рипариа Кобер 5 ББ (2010 год посадки, схема 3 м ×1,25 м) и участок № 391, площадью 3,06 га, на котором возделываются растения сорта Кокур белый, привитые на подвое Берландиери × Рипариа Телеки 4Б (СО4) - 2011 год посадки, схема 3 м × 1 м). На обоих участках система ведения кустов - вертикальная трехпроволочная шпалера, формировка АЗОС-1, высота штамба - 1,3 м. Показана целесообразность проведения работ по улучшению сорта Кокур белый методом клоновой селекции на сортоподвойной комбинации Кокур белый подвой Кобер 5 ББ: у растений отмечен высокий уровень коэффициента плодоношения (0,92), довольно крупные грозди (365 г), урожай с куста в среднем составил 4,74 кг/куст, очень высокая продуктивность побега по сырой массе грозди - 336,6 г/побег, большой процент выхода мякоти и сока - 91,3%. Оценка имеющихся сортоподвойных комбинаций в производственных условиях позволила провести индивидуальный отбор генотипически ценных в биолого-хозяйственном отношении форм растений.The paper reports on the findings of a study on the influence of phylloxera-resistant rootstocks ‘Berlandieri’בRiparia Kober 5BB’ and ‘Berlandieri’בRiparia Teleki 4B (СО4)’ on the agro-biological and uvological indicators of Crimean aboriginal grapevine variety used in winemaking ‘Kokur Beliy in the conditions of Alushta valley (branch of Alushta FGUP PAO Massandra). The following were selected for research: plot № 361 with an area of 4.49 hectares with bushes of ‘Kokur Beliy’ grafted on rootstock of ‘Berlandieri’ × Riparia Kobera 5 BB’ (planting year - 2010, planting scheme 3 m ×1.25 m) and plot № 391 covering 3.06 hectares with ‘Kokur Beliy’ vines grafted on ‘Berlandieri’ × ‘Riparia Teleki 4B (СО4)’ rootstock - planting year - 2011, planting scheme 3 m×1 m). On both plots, the training system used was vertical three-wire trellis, vines shaped as AZOS-1, the trunk height 1.3 m. The paper demonstrates the relevance of the work on improvement of ‘Kokur Beliy’ cultivar with the help of clonal breeding on rootstock cultivar combination ‘Kokur Beliy’ rootstock ‘Kober 5 BB’: the plants demonstrated high relative productivity (0.92), quite large bunches (365 g), yield per bush made on average 4.74 kg/bush, very high shoot productivity as per raw bunch weight 336.6 g/shoot, a large percentage of pulp and juice output - 91.3 %. Assessment of the cultivar-rootstock combinations under production conditions allowed making individual selection of genotypically valuable, from the biological and economic points of view, plants.

scholarly journals Assessment of Agricultural Valuable Indicators of Pure Lines of Tomato

2021 ◽  
Vol 7 (9) ◽  
pp. 125-129
Author(s):  
M. Adigozalov
Keyword(s):  
Abiotic Factors ◽  
Fruit Weight ◽  
Biological Characteristics ◽  
Starting Material ◽  
Individual Selection ◽  
Ripening Time ◽  
Characteristic Features ◽  
Pure Lines ◽  
Selection Of ◽  
Research Institute

The article is devoted to the study of several tomatoes introduced and created in Vegetable Growing Research Institute (Baku) and pure lines derived from them. Biological and economically-valuable characteristics of varieties and obtained pure are given. It should be noted that in Azerbaijan, 25 different varieties of tomatoes are introduced and localized. These varieties have been cultivated on farms for years and have lost their farm valuable qualities due to various biotic an abiotic factors. Although tomato is a self-pollinating plant, special selection and seeding measures are required for reproduction. Therefore, in order to restore the original characteristics of regionalized tomato varieties, it is necessary to re-study their biological characteristics and economically-valuable qualities. Our research was carried out in the direction of individual selection and acquisition of pure lines of typical plants with characteristic features and characteristics. In the course of the work, 2–3 best pure lines were separated from each variety. These lines differ from the parent varieties in terms of ripening time, fruit weight and productivity. Thus, as a result of experiments, it was determined that they give the product in 10–15 days, the characteristics of coexistence are also high, forming uniformity in shape, size and color. The obtained lines are promising, will be included in the selection of seed work as a valuable starting material, and will also be increased.

A MODEL HIERARCHY FOR IONOSPHERIC PLASMA MODELING

2004 ◽  
Vol 14 (03) ◽  
pp. 393-415 ◽  
Author(s):  
CHRISTOPHE BESSE ◽  
PIERRE DEGOND ◽  
FABRICE DELUZET ◽  
JEAN CLAUDEL ◽  
GÉRARD GALLICE ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Plasma Density ◽  
Maxwell Equations ◽  
Ionospheric Plasma ◽  
Practical Interest ◽  
Plasma Modeling ◽  
Model Hierarchy ◽  
Great Practical Interest ◽  
Two Fluid ◽  
Insight Into

This paper deals with the modeling of the ionospheric plasma. Starting from the two-fluid Euler–Maxwell equations, we present two hierarchies of models. The MHD hierarchy deals with large plasma density situations while the dynamo hierarchy is adapted to lower density situations. Most of the models encompassed by the dynamo hierarchy are classical ones, but we shall give a unified presentation of them which brings a new insight into their interrelations. By contrast, the MHD hierarchy involves a new (at least to the authors) model, the massless-MHD model. This is a diffusion system for the density and magnetic field which could be of great practical interest. Both hierarchies terminate with the "classical" Striation model, which we shall investigate in detail.

Sign in / Sign up

Export Citation Format

Share Document