scholarly journals PLASTICITY AND STABILITY OF SOYBEAN ACCORDING TO SELECTION INDICES

2020 ◽  
pp. 243-250
Keyword(s):  
Selection Index ◽  
Index Number ◽  
Hydrothermal Regime ◽  
Soybean Cultivars ◽  
Selection Indices ◽  
New Varieties ◽  
Growing Conditions ◽  
The Stability ◽  
High Level ◽  
Number Of Seeds

The study of the parameters of plasticity and stability of breeding indices, will identify the best forms of soybeans for their targeted use in hybridization in the creation of new varieties. The highest indicators of the selection index (number of seeds / number of beans per plant) were obtained from cultivars: UD0202457 - 1.58; UD0202566 - 1.57; UD0202529 - 1.57; UD0202557 - 1.55. These cultivars in response to the hydrothermal regime were highly plastic (bi> 1) in response to improved cultivation background. It should be noted that these varieties provided a fairly high level of homeostatic, namely UD0202457 - 0.71; UD0202566 - 0.61; UD0202529 - 0.63. the coefficient of variation was low - (V <10%), and the coefficient of agronomic stability was high - 97.8 and 97.4 and 97.5%. We established a correlation between the coefficient of plasticity and the selection index (number of seeds / number of beans per plant), where the correlation coefficient r = 0.491, which indicates the average strength of the correlation. That is, these varieties, despite the low absolute value of the selection index provided a stable implementation of quantitative variability, which is less dependent on the hydrothermal regime of years of research. According to the selection index (number of beans per plant / number of productive nodes) soybean cultivars were distinguished: UD0202557 - 2.06; UD0200773 and UD0202468 - 2.05, these varieties were highly plastic (bi> 1) in response to changes in hydrothermal growing conditions. The stability variance (Si2) in these soybean cultivars is as close as possible to zero. The coefficients of agronomic stability were also high, which varied from 92.8 to 94.9%. However, the highest indicators of homeostaticity were provided by soybean cultivars, which were characterized by a low response to changes in the growing cultivation background (bi <0): UD0200983 - 0.72; UD0202529 - 0.71; UD0202457 - 0.59 and UD0202563 - 0.74. These cultivars were characterized by the lowest coefficients of variation, which varied from 2.7 to 3.4% and the highest coefficients of agronomic stability from 96.6 to 97.3%.

scholarly journals IDENTIFICATION OF GRAIN PLANTS BY SELECTION INDICES

2020 ◽  
pp. 119-133
Author(s):  
Olena Mazur
Keyword(s):  
Factor Analysis ◽  
Seed Weight ◽  
Selection Index ◽  
Index Number ◽  
Hydrothermal Regime ◽  
Selection Indices ◽  
Different Types ◽  
Mathematical Processing ◽  
Index Weight ◽  
Number Of Seeds

The highest selection index obtained from the genotypes of soybeans: UD0202557 – 0,21, UD0202566 – 0,21, UD0202468 – 0,21, UD0202529 – 0,21. It should be noted that these cultivars are different types in the parameters of ecological plasticity and stability. For varancau stability, all cultivars that were studied are stable, varansi stability maximum was close to zero. According to the results of variance analysis it was found that the formation of a selection index (weight of seeds/number of beans per plant) were more influenced by the year conditions, however, have a significant influence of varietal characteristics and interaction of varieties with haratine conditions years of research. The highest breeding index (seed weight per plant and number of seeds per plant) have provided varieties of soybean: UD0200773 – 0,14, UD0202201 – 0,14, UD0202566 – 0,14, UD0202468 – 0,14. Most of these genotypes belong to the highly plastic – UD0202201, UD0202566, UD0202468. Cultivars that have provided high breeding index (seed weight per plant and number of seeds per plant) was also characterized by high levels of agronomic stability of 99.9%. In addition, these cultivars had high homeostaticity and 1.4. At formation of indicators of the selection index (weight of seeds/number of seeds per plant) is more influenced by varietal characteristics, this is indicated by the results of mathematical processing of two-factor analysis of variance.The highest selection index weight of seeds/number of nodes on the plant were characterized by varieties of soybean : UD0202468 AND 0.43, UD0202557 AT 0.42, UD0202566 AT 0.42, UD0200773 – 0,41, UD0202201 – 0,41. These cultivars of soybean in response to the improvement of hydrothermal regime is treated as a highly plastic: UD0202201, UD0202557, as well as conservative. The highest rates of this selection index (number of seeds/number of productive nodes) obtained from the genotypes of soybeans: UD0202557 WAS 3.18, UD0202566 – 3,14, UD0202468 – 3.21 m. These cultivars for reaction to improve the hydrothermal regime relate to highly plastic (b1>1). The formation of this selection index is significantly influenced by the conditions of the year. Key words:cultivars of soybean, the parameters of adaptability and coefficient of plasticity, agronomic stability, varansi stability.

scholarly journals PLASTICITY AND STABILITY OF LEGUMINOUS CROPS ACCORDING TO ECONOMICALLY VALUABLE TRAITS AND SELECTION INDICES

2019 ◽  
pp. 111-136
Author(s):  
Oleksandr Mazur ◽  
Olena Mazur
Keyword(s):  
Seed Weight ◽  
Selection Index ◽  
Common Beans ◽  
Hydrothermal Regime ◽  
Grain Productivity ◽  
Selection Indices ◽  
Economically Valuable Traits ◽  
Leguminous Crops ◽  
Weight Number ◽  
Number Of Seeds

The varieties of common beans were distinguished by the number of productive nodes,i.e. UD0302642 – 5.2 pcs., UD0302683 – 4.8 pcs., UD0303533 – 4.75 pcs. These regression coefficients were classified as highly plastic – (bi> 1). The highest indexes of the selection index (seed weight / number of beans per plant) were obtained from the common bean varieties, i.e. UD0300658 – 0.8, UD0302746 – 0.69, UD0302256 and UD0300565 – 0.62. These varieties belong to different genotypes in response to hydrothermal regime change. The highest indexes of selection index (seed weight / number of seeds per plant) provided varieties of common beans, which were characterized by high response to the improvement of hydrothermal regime, UD0300658 – 0.27, UD0300232 – 0.21 and UD0302256 – 0.2. The number of productive nodes is an important feature that determines the grain productivity of soybean varieties, the number of productive units determines the number of beans and seeds per plant. According to the number of productive nodes on the plant, soybean variety samples were distinguished, i.e. UD0202563 – 14.0 pcs., UD0200983 – 13.6 pcs., UD0202201 – 13.6 pcs., UD0202529 – 13.6 pcs. The high number of seeds on the plant, as well as the number of beans, provided varieties of soybeans, which were highly plastic in response to the improvement of the hydrothermal regime and conservative to change agrophone cultivation. The high-plastic varieties included UD0202201, UD0202563, UD0202566. Conservative agrophone replacement cultivation included UD0200983 and UD0202529. Higher grain productivity was provided by soybean varieties: UD0202566 – 5.6 g, UD0202201 – 5.5 g, UD0202557 – 5.4 g, UD0202529 – 5.4 g. These varieties according to the parameters of adaptability and stability were treated as highly plastic UD0202566, UD0202201, UD0202557, so with a conservative reaction to the change in cultivation agrophone – UD0202529.

scholarly journals Selection of productive hybrid oil flax plants by methods of multivariate analysis

2021 ◽  
Vol 59 (4) ◽  
pp. 440-451
Author(s):  
I. A. Golub ◽  
A. L. Andronik ◽  
A. V. Ivanova
Keyword(s):  
Information Technologies ◽  
Multidimensional Analysis ◽  
Information Support ◽  
Distinctive Features ◽  
Modern Computer ◽  
Other Information ◽  
New Varieties ◽  
High Level ◽  
Number Of Seeds ◽  
Selection Of

Use of computer technology allows to quickly analyze and use subject, technological, analytical and other information. Biometric statistics in plant breeding is aimed at optimizing (increasing efficiency, reliability, acceleration and cheapening) the process of breeding varieties of agricultural crops. Therefore, creation and study of new varieties of oil flax requires widespread introduction of modern computer information technologies that provide information support of the breeding process at all its stages. Methods of multi-criteria mathematical statistics - factor and cluster analyses - were used in the studies for a comprehensive assessment of hybrid populations of oil flax by productivity elements (plant height, technical length, inflorescence length, number of pods per plant, number of seeds per plant, number of seeds in a box, weight of 100 seeds, and oil content in seeds). Effectiveness of selection of hybrids of the third cycle of breeding has been evaluated, and also the distinctive features of hybrid combinations in a number of generations have been established. As a result of selection and technological cycle of the analysis, 31 highly productive hybrids (or 6.9%) were identified for further reproduction. Despite the high level of the breeding differential determined in hybrid combinations during the F2-F3 generation change, their response to traits based selection according to “number of seeds in a box” and “weight of 100 seeds” was weak, and selection by the number of boxes and seeds from the plant turned out to be ineffective. The selection method used makes it possible to cull low-yielding plants that have fallen into the worst groups of clusters. Culling by the method of multidimensional analysis should be used in later generations (fourth-fifth cycle of selection) as homozygosity of traits is established.

PROSPECTS FOR THE USE OF REMOTE CROSS IN THE CITRUS CROPS SELECTION

1970 ◽  
pp. 46-49 ◽  
Author(s):  
R. V. Kulyan
Keyword(s):  
Complex Traits ◽  
Germplasm Collection ◽  
Early Maturity ◽  
Russian Research Institute ◽  
Citrus Germplasm ◽  
The Status ◽  
New Varieties ◽  
Primary Test ◽  
Growing Conditions ◽  
Positive Traits

The Russian Research Institute of Floriculture and Subtropical Crops has the citrus germplasm collection, in total over 150 genotypes of various origins including 30 wild and semi-wild relatives. As a result of controlled hybridization in 17 crossings combinations of with the participation of relatives of citrus plants, new 769 hybrid offspring were obtained, which combine the traits of both the maternal and paternal genotypes. Analyzing the populations, promising combinations were highlighted: C. reticulata × Fortunella margarita (47.1%); C. x natsudaidai × 3252 (42.1%) and C. reticulata × C. reticulata ‘Cleopatra’ (40.9%) to create the gene pool of distant hybrids. From the mentioned combinations of crossings the greatest percent of seedlings which phenotypes tend to cultivated varieties was received. This hybrid material is a valuable source for isolating forms that are resistant to extreme environmental factors. According to phenotypic characteristics, hybrids were divided into three categories: I – Cultural, II – Semi-wild and III – Wild. Of the first category, the largest number 87 prospective forms were selected, and can be of interest for further breeding. As a result of the study of interspecific hybrid seedlings, 137 promising forms have been identified, which are carriers the complex traits such as dwarfism, thornless, early maturity and increased winter hardiness. From this set 17 genotypes were selected, which received the status of an elite forms, which successfully pass the primary test, and will be also useful in further breeding work for creating sources with a complex of positive traits and on breeding new varieties of citrus crops resistant to growing conditions.

Radiation Effects on Hollandite Ceramics developed for Radioactive Cesium Immobilization

2003 ◽  
Vol 792 ◽  
Author(s):  
V. Aubin ◽  
D. Caurant ◽  
D. Gourier ◽  
N. Baffier ◽  
S. Esnouf ◽  
...  
Keyword(s):  
Radiation Effects ◽  
Liquid Waste ◽  
Fission Products ◽  
Radioactive Cesium ◽  
Radioactive Liquid Waste ◽  
Epr Spectrum ◽  
Paramagnetic Resonance ◽  
Γ Radiation ◽  
The Stability ◽  
High Level

ABSTRACTProgress on separating the long-lived fission products from the high level radioactive liquid waste (HLW) has led to the development of specific host matrices, notably for the immobilization of cesium. Hollandite (nominally BaAl2Ti6O16), one of the main phases constituting Synroc, receives renewed interest as specific Cs-host wasteform. The radioactive cesium isotopes consist of short-lived Cs and Cs of high activities and Cs with long lifetime, all decaying according to Cs+→Ba2++e- (β) + γ. Therefore, Cs-host forms must be both heat and (β,γ)-radiation resistant. The purpose of this study is to estimate the stability of single phase hollandite under external β and γ radiation, simulating the decay of Cs. A hollandite ceramic of simple composition (Ba1.16Al2.32Ti5.68O16) was essentially irradiated by 1 and 2.5 MeV electrons with different fluences to simulate the β particles emitted by cesium. The generation of point defects was then followed by Electron Paramagnetic Resonance (EPR). All these electron irradiations generated defects of the same nature (oxygen centers and Ti3+ ions) but in different proportions varying with electron energy and fluence. The annealing of irradiated samples lead to the disappearance of the latter defects but gave rise to two other types of defects (aggregates of light elements and titanyl ions). It is necessary to heat at relatively high temperature (T=800°C) to recover an EPR spectrum similar to that of the pristine material. The stability of hollandite phase under radioactive cesium irradiation during the waste storage is discussed.

scholarly journals Computing the Exact Number of Similarity Classes in the Longest Edge Bisection of Tetrahedra

Mathematics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1447
Author(s):  
Jose P. Suárez ◽  
Agustín Trujillo ◽  
Tania Moreno
Keyword(s):  
Data Structure ◽  
Stability Condition ◽  
Open Problem ◽  
Integer Arithmetic ◽  
Exact Number ◽  
Similarity Class ◽  
The Stability ◽  
High Level ◽  
The Cost

Showing whether the longest-edge (LE) bisection of tetrahedra meshes degenerates the stability condition or not is still an open problem. Some reasons, in part, are due to the cost for achieving the computation of similarity classes of millions of tetrahedra. We prove the existence of tetrahedra where the LE bisection introduces, at most, 37 similarity classes. This family of new tetrahedra was roughly pointed out by Adler in 1983. However, as far as we know, there has been no evidence confirming its existence. We also introduce a new data structure and algorithm for computing the number of similarity tetrahedral classes based on integer arithmetic, storing only the square of edges. The algorithm lets us perform compact and efficient high-level similarity class computations with a cost that is only dependent on the number of similarity classes.

Features of pubertal patients with schizophrenia neurocognitive profile

2017 ◽  
Vol 41 (S1) ◽  
pp. S430-S431
Author(s):  
Y. Barylnik ◽  
S. Pakhomova ◽  
D. Samoylova ◽  
J. Abrosimova ◽  
E. Kolesnichenko ◽  
...  
Keyword(s):  
Stability Index ◽  
Neurocognitive Disorders ◽  
Motor Speed ◽  
Structuring Element ◽  
Test Part ◽  
Psychic Disorders ◽  
Competing Interest ◽  
Neurocognitive Profile ◽  
The Stability ◽  
High Level

Identifying the patterns of neurocognitive disorders in pubertal schizophrenia is actual.MethodsBenton Test of visual retention, methods of forward and reverse bills, Bourdon correction sample, Wechsler's subtests (subtest 11 – “Encryption”, subtest 12 – “Labyrinths” 1, 2, 3, 4, 5), Trail Creating a Test Part A.ResultsAll patients were divided into 3 groups. The first group (schizophrenia) and second group (other psychic disorders) showed the worst results than healthy subjects. Qualitative analysis of the “Benton Test” results showed similar variations of difficulty and types of errors in the subjects of the first and second groups – ignoring the number of the figure sides, as well as difficulties in the structuring element of the image corners. The “Methods of forward and reverse bills” demonstrated the fatigue and attention instability. “Bourdon test” showed a high level of the stability index (K = 0.09). Wechsler's subtest “Encryption B” obtained poor results, indicating a pathological decrease in visual-motor speed. During the subtest “Labyrinths 1, 2, 3, 4, 5” the subjects of first and second groups exceeded the allowable time limit, but the first group of schizophrenia patients allowed more blunders during pubertal study (ignored the walls of the maze, torn pencil despite the given instructions). The test groups 1 and 2 while passing “Trail Creating a Test Part A” have shown good results – job data did not cause difficulties and carried out in accordance with the specified instructions.ConclusionsNeurocognitive disorders allow to confirm the presence of morphological and functional brain changes when endogenous mental illness occurs.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Analysis of yield and oil from a series of canola breeding trials. Part II. Exploring variety by environment interaction using factor analysisThis article is one of a selection of papers from the conference “Exploiting Genome-wide Association in Oilseed Brassicas: a model for genetic improvement of major OECD crops for sustainable farming”.

Genome ◽  
2010 ◽  
Vol 53 (11) ◽  
pp. 1002-1016 ◽  
Author(s):  
B.R. Cullis ◽  
A.B. Smith ◽  
C.P. Beeck ◽  
W.A. Cowling
Keyword(s):  
Pedigree Information ◽  
Environment Interaction ◽  
Correlation Matrices ◽  
New Approach ◽  
Genome Wide ◽  
Selection Indices ◽  
New Varieties ◽  
Oilseed Brassicas ◽  
Analytic Models ◽  
Selection Of

Exploring and exploiting variety by environment (V × E) interaction is one of the major challenges facing plant breeders. In paper I of this series, we presented an approach to modelling V × E interaction in the analysis of complex multi-environment trials using factor analytic models. In this paper, we develop a range of statistical tools which explore V × E interaction in this context. These tools include graphical displays such as heat-maps of genetic correlation matrices as well as so-called E-scaled uniplots that are a more informative alternative to the classical biplot for large plant breeding multi-environment trials. We also present a new approach to prediction for multi-environment trials that include pedigree information. This approach allows meaningful selection indices to be formed either for potential new varieties or potential parents.

THE ROLE OF ACCOUNTING AND CONTROL IN THE MANAGEMENT OF ECONOMIC SECURITY OF AN ORGANIZATION

2021 ◽  
Vol 7 (2) ◽  
pp. 165-178
Author(s):  
Nicolay T. Labyntsev ◽  
Lyubov F. SHILOVA ◽  
Ocsana V. Chukhrova
Keyword(s):  
Economic Security ◽  
Accounting Profession ◽  
Economic Management ◽  
Economic Interests ◽  
Doing Business ◽  
The Subject ◽  
The Stability ◽  
High Level ◽  
And Control

This article revises the mission and the name of the accounting profession in the context of strengthening the economic security of enterprises under the conditions of digitalization of the economy. The authors note that in the contemporary conditions of economic management, enterprises should form and ensure the functioning of the economic security of the enterprise at the proper level. The necessity of in-depth research of economic security at microlevel was considered, the factors influencing the stability of the enterprise were highlighted. High level of economic security of the subject of management consists in guaranteeing him maximum effective and stable functioning now and in future. Subjects of economic security were individual enterprises, and objects — their economic interests. The main goals of ensuring economic security of the enterprise in the part of accounting were singled out, the tasks of accounting policy, aimed at ensuring economic security, were determined. The prospects of the accounting profession in the process of ensuring economic security and reliable safe presentation of the results of doing business in reporting are substantiated. The study contains proposals on the revision of requirements for the qualifications of accountants in order to emphasize their activities aimed at strengthening the economic security of the enterprise.

Morphological and physiological traits associated with seed yield in different chickpea (Cicer arietinum L.) genotypes under irrigated andwater‐deficit environments

2011 ◽  
Vol 1 (6) ◽  
pp. 260-267
Author(s):  
Reza Talebi ◽  
Ezzat Karami
Keyword(s):  
Chlorophyll Content ◽  
Water Deficit ◽  
Seed Yield ◽  
Seed Weight ◽  
Significant Negative Correlation ◽  
Physiological Traits ◽  
Positive Correlation ◽  
Chickpea Cultivar ◽  
High Level ◽  
Number Of Seeds

The morpho â€physiological traits associated with seed yield in chickpea (Cicerarietinum L.) were evaluated on thirty five chickpea genotypes under twodifferent water regimes. In optimum condition, the highest correlation wasbelonged to number of seeds/plant and number of pods/plant (0.944**) andin water deficit condition, the strongest correlation of seed yield was observedwith number of seeds/plant (0.875**), number of pods/plant(0.789**) and 100  â€seed weight (0.438**). Physiological traits (RWC, Chlorophylland Carotenoid) indicated low and positive correlation with yield, buthigh positive correlation with other seeds yields related traits in optimumcondition while, under water deficit condition, chlorophyll content and RWChad low and non â€significant negative correlation with seeds yield. Carotenoid,number of seeds/plant and 100 â€seed weight showed more direct positiveeffect on yield in optimum environment and in stress condition, numberof seeds/ plant and 100 â€seed weight showed highest direct effect on seedyield. Results of factor analysis showed that four factors explained 88.54%and 34.5% of the total variance caused in the characters in optimum andwater deficit environment, respectively. In general, the results suggestedthat a chickpea cultivar, for increased yield under non â€stress conditions,should have maximum number of seeds and pods per plant and under stressconditions should have maximum number of seeds and pods per plant andalso keep the high level of RWC and chlorophyll content in their leaves. Thus,identifying these traits as selection criteria in chickpea breeding programmay be useful for breeders to introduce suitable drought resistant chickpeacultivars for arid regions.

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