Promising Lines Research Articles

Exploring agronomic traits and breeding prospects of primary tritipyrum and triticale lines to increase grain yield potential

A study was conducted to evaluate 13 non-Iranian primary tritipyrum (AABBEbEb, 2n=6x=42) as new amphiploid cereal derived from the hybridization of wild sand couch grass species, Thinopyrum bessarabicum (2n=4x=14, EbEb) and durum (Triticum durum, 2n=4x=28, AABB) wheat and five promising triticales for 31 different phenological and agronomic traits in a randomized complete block design (RCBD) with three replications under field conditions. The analysis of variance (ANOVA) showed significant differences between genotypes for most of the studied traits. The factor analysis results revealed five factors that almost explained 89% of the total variance. The stepwise regression and path coefficient analyses revealed that the number of grains per spike and harvest index were the most important traits contributing to the high-yield of the genotypes. Cluster analysis grouped 18 lines into three diverse genotypic clusters. Cluster III included 4115, 4116, and M45 triticale lines indicating the highest value for harvest index as well as grain yield and its components. The non-Iranian primary combined tritipyrum line, (Ka/b)(Cr/b)-5 and promising triticale line No. 4116, showed the highest values for grain-related traits, and therefore these lines may be used in further breeding programs to develop new commercial cereal hybrid/cultivars. Overall, the results indicated grain number per spike and harvest index could be utilized as the key selection criteria in breeding for improvement of grain yield in primary tritipyrum and triticale genotypes.

Cabozantinib in neuroendocrine tumors: tackling drug activity and resistance mechanisms.

Neuroendocrine tumors (NETs) are highly vascularized malignancies in which angiogenesis may entail cell proliferation and survival. Among the emerging compounds with antivascular properties, cabozantinib (CAB) appeared promising. We analyzed the antitumor activity of CAB against NETs utilizing in vitro and in vivo models. For cell cultures, we used BON-1, NCI-H727 and NCI-H720 cell lines. Cell viability was assessed by manual count coupled with quantification of cell death, performed through fluorescence-activated cell sorting analysis as propidium iodide exclusion assay. In addition, we investigated the modulation of the antiapoptotic myeloid cell leukemia 1 protein under CAB exposure, as a putative adaptive pro-survival mechanism, and compared the responses with sunitinib. The activity of CAB was also tested in mouse and zebrafish xenograft tumor models. Cabozantinib showed a dose-dependent and time-dependent effect on cell viability and proliferation in human NET cultures, besides a halting of cell cycle progression for endoduplication, never reported for other tyrosine kinase inhibitors. In a transplantable zebrafish model, CAB drastically inhibited NET-induced angiogenesis and migration of implanted cells through the embryo body. CAB showed encouraging activity in NETs, both in vitro and in vivo models. On this basis, we envisage future research to further investigate along these promising lines.

Survey on Evolutionary Deep Learning: Principles, Algorithms, Applications, and Open Issues

Over recent years, there has been a rapid development of deep learning (DL) in both industry and academia fields. However, finding the optimal hyperparameters of a DL model often needs high computational cost and human expertise. To mitigate the above issue, evolutionary computation (EC) as a powerful heuristic search approach has shown significant merits in the automated design of DL models, so-called evolutionary deep learning (EDL). This article aims to analyze EDL from the perspective of automated machine learning (AutoML). Specifically, we first illuminate EDL from DL and EC and regard EDL as an optimization problem. According to the DL pipeline, we systematically introduce EDL methods ranging from data preparation, model generation, to model deployment with a new taxonomy (i.e., what and how to evolve/optimize), and focus on the discussions of solution representation and search paradigm in handling the optimization problem by EC. Finally, key applications, open issues, and potentially promising lines of future research are suggested. This survey has reviewed recent developments of EDL and offers insightful guidelines for the development of EDL.

Science, Technology, Engineering, and Mathematics (STEM) Engagement From Parent-Child Interaction in Informal Learning Environments

Children’s engagement in science, technology, engineering, and mathematics (STEM) is fundamental to developing scientific literacy. Informal learning environments, such as children’s museums, are a robust setting for fostering STEM engagement, particularly through parent-child interaction. Although the role of STEM learning has been frequently documented in informal learning environments, how children are engaged by STEM topics and STEM’s relation to children’s everyday lives has not been equally well studied. In this article, I suggest that there are ways that parent-child interaction during informal learning opportunities can relate to children’s engagement in STEM activities. A fundamental mechanism underlying this relation is how parents support children’s autonomy as they play together. Parent-child interaction relates to children’s STEM engagement not only in situ but also in how they generalize that behavior to their everyday activities, which opens up promising new lines of research.

Architecture of vibrissae in eight rodent species of Ctenohystrica (Rodentia): A comparative SEM study

Our study was conducted within the framework of comparative functional morphology of mammalian skin (Sokolov 1982) and “Trichomorphology” (Hausmann 1930; 1944; Teerink 1991) focusing in particular on specialized tactile organs such as whiskers (vibrissae). The architecture of vibrissae was studied for the first time using SEM in the relict rodent Laonastes aenigmamus and in some other representatives of the clade Ctenohystrica (Rodentia): Ctenodactylus gundi, Pectinator spekei, Proechimys guyannensis, Echimys sp., Trichomys apereoides, Chinchilla lanigera, and Octodon degus with the aim to identify the specific characters for each species. The vibrissal architecture is specific and polymorphic: the rod shape and structure of the medulla show differences between species of different genera and differ from those of guard hairs and spines of the same species. In L. aenigmamus, the vibrissal medulla is peculiar in its internal structure, which, together with the structure of guard hairs in this species, confirms its phylogenetically distinct position within Ctenohystrica. For the compared species, the complex medulla is with variously arranged systems of keratinized septa and different degrees of development of air spaces between them (ranging from unstructured and irregular to uni- or biserial ladder-like, cellated or pyramidal). The vibrissae have a non-specialized cuticle serving mostly for protection during tactile contacts, which distinguishes it from the diverse and multifunctional cuticle of guard hairs, spines, and quills. The tactile function of vibrissae is corroborated by the presence of scuff marks, scratches and even cuticle loss at the tip and on the ventral side of the rod, a thickened dense cortex and a poorly developed medullar layer but diverse its internal architecture, which provides only a very limited thermal protection, unlike that of the hair pelage. The SEM study of vibrissal architecture is a promising line of research, because a better knowledge of vibrissae may contribute to the biology and biomimetics.

Synthesis and Biological Activity of Piperidinothiosemicarbazones Derived from Aminoazinecarbonitriles.

To investigate how structural modifications affect tuberculostatic potency, we synthesized seven new piperidinothiosemicrabazone derivatives 8-14, in which three of them had a pyrazine ring replacing the pyridine ring. Derivatives 8-9 and 13-14 exhibited significant activity against the standard strain (minimum inhibitory concentration (MIC) 2-4 μg/mL) and even greater activity against the resistant M. tuberculosis strain (MIC 0.5-4 μg/mL). Additionally, the effects of compounds 8-9 were entirely selective (MIC toward other microorganisms ≥ 1000 μg/mL) and non-toxic (IC50 to HaCaT cells 5.8 to >50 μg/mL). The antimycobacterial activity of pyrazine derivatives 11-12 was negligible (MIC 256 to >500 μg/mL), indicating that replacing the aromatic ring was generally not a promising line of research in this case. The zwitterionic structure of compound 11 was determined using X-ray crystallography. Absorption, distribution, metabolism, and excretion (ADME) calculations showed that all compounds, except 11, could be considered for testing as future drugs. An analysis of the structure-activity relationship was carried out, indicating that the higher basicity of the substituent located at the heteroaromatic ring might be of particular importance for the antituberculous activity of the tested groups of compounds.

Durum-21: A New High-Yielding and Good Quality Durum Wheat Variety Suitable for Pasta Production

Durum-21 (D-21) is a high-yielding, disease resistant with better-quality traits variety, developed by Wheat Research Institute Faisalabad. This variety is mainly developed for industrial purposes for pasta production. Worldwide, durum wheat is utilized for pasta production; but in Pakistan, due to a lack of research work and non-availability of quality seeds of durum wheat, bread wheat is being utilized for pasta production. D-21 is developed with the breeding code of D-21 having parentage of FKN/3/2*FR//KAD/GB/4/BB/CHA/5/AS-2002 with pedigree as PB20733-1a-2a-2a-0a-0a-19a-0a. The candidate line D-21 was developed by crossing a germplasm accession with approved bread wheat variety AS-02. The genotype was further evaluated over multiple locations in Punjab Pakistan for yield and yield-related attributes in the station, provincial, and national uniform durum yield trials executed by Wheat Research Institute (WRI), Faisalabad during 2015-20. The promising line out yielded the two commercial check varieties D-97 and Fsd-2008 by 1.42 % in the provincial yield trial and 4.2 % in the national yield trial. D-21 had desirably medium to tall plant height (96-100 cm) without anthocyanin pigment. It has erected to semi-erect growth habit at the seedling stage. Its color is green with medium waxiness on stem and yellowish-white at maturity. Its 1000-grain weight ranged from 38.9 to 39 g while the test weight remained from 69 to 78.5 g. The protein contents were 13.1 to 14.95 %; which is higher than the two checks (D-97 and Fsd-2008). Due to its better grain yield and promising nutritional and quality parameters, it was approved in the year 2021 for cultivation all over the country.

Promising solutions for railway operations to cope with future challenges — Tackling COVID and beyond

The COVID-19 pandemic has imposed a dramatic effect on the mobility habits of both passengers and freight in the rail sector. Since the relaxation of COVID-19 restrictions worldwide, rail transport has been revitalised gradually. However, the new normal emerges with unprecedented issues, such as changed travel behaviour, lost profits, and a lack of personnel. In this paper, we determine the arising challenges due to COVID-19 and pandemics in general and subsequently propose several solutions to tackle these challenges in rail transport. These solutions cover multidisciplinary aspects such as passenger demand management, freight demand management, service design, automation, decentralisation and advanced railway technologies. By reviewing the relevant literature on COVID-19, public transport and particularly rail transport, we synthesise and identify promising lines of research that should devote more attention to a more efficient, effective and sustainable rail transport service. This paper provides policymakers, researchers, railway infrastructure managers and undertakings with an overview and an outlook for the impacts of the pandemic crisis and similar situations. It supports decision-making with more evidence and facilitates rail transport to restore its performance and reach its societal goal.

Estimation of Association among the Yield and Yield Attributing Traits in the Segregating Population of Rice

Indirect selection, using correlation coefficients, linear regression coefficients and path analysis, uses a variety of yield determinants that are more heritable than yield itself and less influenced by environmental factors and therefore are stable. Therefore, indirect selection based on the characters makes the selection process more efficient, especially in the early generations. Correlation coefficient analysis and the use of path coefficients are particularly important for economical and complex traits such as yield, where direct selection is less effective. Thus the present experiment was undertaken to decipher the character association between the characters in a segregating population (F2) obtained from a cross between Naveen x IR 64 Drt1rom the study, it was evident that the characters like leaf breadth, leaf area, plant height, panicle length, number of primary branches, number of secondary branches, number of filled grains, grain length and test weight had the maximum association with yield among the characters under the study. Correlation coefficient and path coefficient analysis, revealed that the characters viz., number of filled grains per plant followed bygrain breadth, total number of grains, number of secondary branches, plant height, number of panicles, leaf breadth, flag leaf area, 1000 seed weight, panicle lengthand number of primary branches had a highly significant and positive correlation with yield and positive direct effect on yield. Thus, emphasis may be given to these traits for the effective selection of promising lines under study.

Evaluation of yield attributing characters and grain yield in some promising red rice lines (Oryza sativa L.) grown in the lowland conditions

The research experiment conducted on the farmer paddy field in Ranomeeto village, District of South Konawe, Indonesia from January to May 2022, to evaluate the yield attributing characters and the grain yield in some new promising lines or cultivar of red rice. The red rice lines tested are GS12-1, GS12-2, GS16-1, GS16-2, GS44-1, and control variety Inpari-33, were laid out and arranged in field using randomized complete block design (RCBD) in three replications. The parameter measured were plant height, tiller density, productive tiller density, flowering time, harvesting times, panicle length, panicle density, filled grain percentage, 1000-grain weight, and grain yield. Differences between promising lines of red rice were found to exist when data on various yield-attributing features and grain yield were analysed. GS16-1 (89.37 cm) was the tallest plant and GS12-2 the shortest (72.74 cm). GS16-2 had the longest panicle (25.96 cm) and most grains per panicle (146.62). GS44-1 full grains, 1000-grain weight, and grain yield were highest. G12-1 lines had the most productive tillers, days to flowering, and harvest. Tiller number and productivity are positively correlated (0.908**). Tillers, productive tillers, and full grains percentage positively affect grain yield per plant.

Exploring I, bc-12 and bc-3 Gene Locus in Promising Common Bean Lines

Common beans (Phaseolus vulgaris L.), known as the "poor man's meat", is an internationally important legume crop that appeals to farmers as well as consumers. Many biotic stressors such as bean common mosaic virus (BCMV), bean common mosaic necrosis virus (BCMNV) cause significant yield and quality losses in common bean. The most efficient and cost-effective way to lessen of these factors is to develop resistant cultivars. Local genotypes have been cultivated in many areas for years and have varied distinguishing characteristics as a result of spontaneous mutations. Identifying bean germplasm harboring gene sources is critical for developing resistant cultivars against BCMV and BCMNV. For this purpose, a total of 43 promising common bean lines selected from local genotypes cultivated across various regions of Türkiye were subjected to screening using diverse molecular markers (ROC11, SBD-5 and SW-13) to investigate gene sources associated with BCMV and BCMNV. The findings revealed that 21 lines had both I and bc-12 gene locus. In addition, the bc-12+bc-3 gene loci were discovered to be present in the 8 common bean lines. The combination of I+bc-3 resistance genes, which guarantees immune reaction to BCMV and BCMNV, was found in only one line; YLV-32. These gene sources can be evaluated in marker-assisted breeding to develop modern cultivars resistant to BCMV and BCMNV by breeders.

Growth and result performance of 10 promising resistant lines of tungro disease in Lanrang South Sulawesi

Increased rice production is constrained by various limiting factors, One of these is tungro disease, which can limit productivity. When resistant tungro varieties are available, they are regarded as an affective control tool that is also more environmental friendly. Advanced yield experiment represents a phase in the process of producing cultivars that are resistant to tungro disease. The study aimed to determine the growth and result performance of tungro-resistant lines with greater phenotypic characteristics and yield potential compared to other tungro resistant varieties. The study was carried out from July to October 2018 at the Tungro Disease Research Station in Lanrang Sidrap, utilizing a design with a randomized complete block design, It was repeated three times using 10 tungro-resistant lines and two comparative varieties, namely Inpari 7, Lanrang, and Ciherang. The F test was used to examine the data, and the Least Significant Difference (LSD) test was used to determine significance. The parameters observed were Flowering age of 50% (days), number of panicles per m2, plant height (cm), density score, the weight of 1000 grains, number of filled and unfilled grains per panicle, moisture content (%), grain yield (kg/ha). Results revealed that there were four lines BP12280-3f-7-Kn-2-1*B-Lrg-1-1-10-9, BP12280-3f-7-Kn-2-1 * B-Lrg-1- 1-10-9, BP12206f-8-3-2 * B-LR-20-4 and BP12280-3f-7-Kn-2-1 * B-Lrg-1- 16-14 with a higher grain yield than Ciherang and Inpari 7 Lanrang, which benefited by 1000 grain weight, the number of grains filled per panicle and flowering age is 50% earlier than the comparison variety.

Reverse logistics and circular economy: A literature review

The application of circular economy (CE) principles in reverse logistics (RL) processes involves the recovery, recycling, reuse and remanufacturing of materials that return from the consumer to the producer. This literature review assesses whether the manufacturing sector, technology, supply chain (SC) structure, customers’ preferences, and policy makers influence the diffusion of circular RL, highlighting the strategies adopted by companies. The results show different levels of circular RL implementation in different industries. Technology is an enabler but also an obstacle, as it requires large financial resources and a skilled workforce. The involvement of all SC stakeholders proves to be a critical factor in the successful implementation of circular RL, although the likelihood of success depends significantly on producers being the initiators. Policymakers also play a key role in guiding business investment in circular RL projects. This article summarizes the literature on CE and RL on analytical dimensions rarely studied together, providing researchers, companies and public decision makers with an overview of the most critical factors influencing the management of RL within circular processes. Controversial findings, open questions, and promising lines of future research are also outlined.

Immigration and Support for Redistribution: Lessons from Europe

Research shows that opposition to policies that redistribute across racial divides has affected the development of the American welfare state. Are similar dynamics at play in Western Europe? For many scholars, the answer is yes. In contrast, we argue that researchers’ understanding of the political economy of redistribution in diversifying European countries is too incomplete to reach a conclusion on this issue. First, existing evidence is inconsistent with the assumption—ubiquitous in this line of research—of a universal distaste for sharing resources with people who are culturally, ethnically, and racially different. Second, important historical and institutional differences between the United States and Europe preclude any straightforward transposition of the American experience to the European case. We discuss what we see as the most promising lines of inquiry going forward. (JEL D64, H23, J15, J68, K37, Z13)

Targeting resilient lentil genotypes with an adding value of nutritional quality by using AMMI and GGE biplots analysis

The current study aims to assess the impact of different genotypes, environmental conditions, and their interactions (G×E) on lentil yield and nutritive traits in various agro-ecological locations across Morocco. To achieve this, two analysis methods, Analysis of Main Additive Effects and Multiplicative Interaction (AMMI), and Genotype and Genotype by Environment (GGE) were used. The study involved evaluating sixty-four lentil genotypes in six diverse environments during the 2017–2018 and 2019–2020 seasons. Results from the analysis of variance revealed that environmental variation significantly influenced grain yield (75.7%), zinc (48.4%), and magnesium (73.3%). In contrast, genotype by environment interaction (G×E) played a more substantial role in determining protein (45.7%), iron (53.2%), and manganese (49.6%) content. The first two components explained 69.2%, 78.3%, 90.5%, 79.3%, 71.4%, and 74.3% of the variation in grain yield, protein content, iron, zinc, manganese, and magnesium, respectively. The GGE biplot analysis identified specific environments (E3 and E5) as representative and discriminative for yield, zinc, and manganese. Similarly, E3 and E4 were discriminative for iron and protein and magnesium, respectively. Seventeen lentil genotypes exhibited high performance, combining yield and nutritional quality. Notably, genotypes LN34 and VR28 performed well in the Marchouch 2019-2020 environment, while genotype LN54 excelled in the Douyet and Sidi el Aydi environments during 2019-2020. Furthermore, three advanced lines (LN34, LN58 and LN64) expressed stability in yield and most nutrient traits, outperforming released lentil varieties. These promising lines hold potential for developing novel, resilient lentil varieties with both high yield and nutritive quality.

Pyramiding of transcription factor, PgHSF4, and stress-responsive genes of p68, Pg47, and PsAKR1 impart multiple abiotic stress tolerance in rice (Oryza sativa L.).

Abiotic stresses such as drought, salinity, and heat stress significantly affect rice crop growth and production. Under uncertain climatic conditions, the concurrent multiple abiotic stresses at different stages of rice production became a major challenge for agriculture. Hence, improving rice's multiple abiotic stress tolerance is essential to overcome unprecedented challenges under adverse environmental conditions. A significant challenge for rice breeding programs in improving abiotic stress tolerance involves multiple traits and their complexity. Multiple traits must be targeted to improve multiple stress tolerance in rice and uncover the mechanisms. With this hypothesis, in the present study gene stacking approach is used to integrate multiple traits involved in stress tolerance. The multigene transgenics co-expressing Pennisetum glaucum 47 (Pg47), Pea 68 (p68), Pennisetum glaucum Heat Shock Factor 4(PgHSF4), and Pseudomonas Aldo Keto Reductase 1 (PsAKR1) genes in the rice genotype (AC39020) were developed using the in-planta transformation method. The promising transgenic lines maintained higher yields under semi-irrigated aerobic cultivation (moisture stress). These 15 promising transgenic rice seedlings showed improved shoot and root growth traits under salinity, accelerating aging, temperature, and oxidative stress. They showed better physiological characteristics, such as chlorophyll content, membrane stability, and lower accumulation of reactive oxygen species, under multiple abiotic stresses than wild-type. Enhanced expression of transgenes and other stress-responsive downstream genes such as HSP70, SOD, APX, SOS, PP2C, and P5CS in transgenic lines suggest the possible molecular mechanism for imparting the abiotic stress tolerance. This study proved that multiple genes stacking as a novel strategy induce several mechanisms and responsible traits to overcome multiple abiotic stresses. This multigene combination can potentially improve tolerance to multiple abiotic stress conditions and pave the way for developing climate-resilient crops.

ALMA as a Redshift Machine: Using [C ii] to Efficiently Confirm Galaxies in the Epoch of Reionization

The [C ii]158μm line has long been proposed as a promising line to spectroscopically confirm galaxies in the epoch of reionization. In this paper, we present the results of new ALMA observations spectral scanning for [C ii] in six particularly luminous Lyman-break galaxies at z ∼ 7. The six sources were drawn from a sample of bright z ∼ 7 galaxies identified using the wide-area optical, near-IR, and Spitzer/IRAC data over the COSMOS/UltraVISTA field and were targeted on the basis of tight constraints on their redshifts from their IRAC [3.6]–[4.5] colors. We detect significant (>9σ) [C ii] lines in three of our six targets (50%) cospatial with the rest-UV emission from the ground/space-based near-IR imaging. The luminosities of the [C ii] lines lie in the range 5.6–8.8 × 108 L ⊙, consistent with the local [C ii]–SFR relation. Meanwhile, their [C ii]/L IR ∼ 1–3 × 10−3 ratios are slightly elevated compared to local (U)LIRGS. This could be due to lower dust-to-gas or dust-to-metal ratios. We also find that our sources display a large kinematic diversity, with one source showing signs of rotation, one source a likely major merger, and one dispersion-dominated source that might contain a bright star-forming clump. Our results highlight the effectiveness of spectral scans with ALMA in spectroscopically confirming luminous galaxies in the epoch of reionization, something that is being be applied on a significantly larger sample in the ongoing REBELS large program.

Unraveling the Most Relevant Features for the Design of Iridium Mixed Oxides with High Activity and Durability for the Oxygen Evolution Reaction in Acidic Media.

Proton exchange membrane water electrolysis (PEMWE) is the technology of choice for the large-scale production of green hydrogen from renewable energy. Current PEMWEs utilize large amounts of critical raw materials such as iridium and platinum in the anode and cathode electrodes, respectively. In addition to its high cost, the use of Ir-based catalysts may represent a critical bottleneck for the large-scale production of PEM electrolyzers since iridium is a very expensive, scarce, and ill-distributed element. Replacing iridium from PEM anodes is a challenging matter since Ir-oxides are the only materials with sufficient stability under the highly oxidant environment of the anode reaction. One of the current strategies aiming to reduce Ir content is the design of advanced Ir-mixed oxides, in which the introduction of cations in different crystallographic sites can help to engineer the Ir active sites with certain characteristics, that is, environment, coordination, distances, oxidation state, etc. This strategy comes with its own problems, since most mixed oxides lack stability during the OER in acidic electrolyte, suffering severe structural reconstruction, which may lead to surfaces with catalytic activity and durability different from that of the original mixed oxide. Only after understanding such a reconstruction process would it be possible to design durable and stable Ir-based catalysts for the OER. In this Perspective, we highlight the most successful strategies to design Ir mixed oxides for the OER in acidic electrolyte and discuss the most promising lines of evolution in the field.

Novel cross wedge rolling method for producing railcar axles

Railcar axles are large-size parts manufactured in large batches using forging methods. More efficient methods of manufacturing railcar axles are currently being sought. A promising line of research in this respect is connected with the use of cross wedge rolling (CWR). Nonetheless, there exist no rolling mills that would make it possible to manufacture such large-size parts as railcar axles. A solution to this problem was inspired by the symmetric shape of a railcar axle, which makes it possible to roll this part in two passes using the same tools. Taking advantage of the potential offered by numerical modelling, simulations were made of two rolling processes for producing a railcar axle type BA302, i.e. one process was conducted with the use of two rolls and the other with two flat tools moving in the opposite directions. Numerical results demonstrated that railcar axles produced by the proposed rolling process had neither external nor internal (cracks) defects. The effectiveness of the developed CWR method was ultimately confirmed by the high quality of railcar axles that were produced (in a scale of 1:5) under industrial conditions at the Lublin University of Technology.

Assessment of the adaptability of spring film oats in terms of yield and grain quality in the conditions of the Kirov region

Studies were carried out in order to assess the varieties and lines of spring covered oats by the ability to form stable high quality grain yields in the conditions of the Kirov region; to identify promising highly adaptive, plastic genotypes that most fully realize their yield potential in changing environmental conditions. The results of the study of 11 varieties and promising lines of spring covered oats in the nursery of competitive variety testing in the Kirov region in the period from 2020 to 2022 are presented. The Krechet varieties were used as standards generally accepted in the Volga-Vyatka region (during the research period), which are included in the State Register. The most optimal conditions for the growth and development of oats were in 2022 and 2020 when the duration of the period from seedlings to heading averaged 52 and 46 days, and the average yield in varieties was 6.21 and 6.18 t/ha, respectively. Promising lines 91h18 (6.14 t/hа) and 41h18 (5.78 t/hа), which is 0.95 and 0.59 t/ha higher than the Krechet standard. Were characterized by the highest yield while line 91h18 had a high level of plasticity (bi =1.13) and stability (Si2=0.00) based on «yield» parameter. A fairly high plasticity (bi= 1.12) and stability (Si2= 0.01) in terms of yield and grain quality indicators (for protein - bi= 1.12, Si2= 0.20, fat - bi= 1.11, Si2 = 0.00) is characterized by an intensive ‘Medved’ type variety. High indices of plasticity (bi = 1.42) and stability (Si2 = 0.00) on the basis of the parameter «grain protein content» were noted at line 162h15. The highest grain fat content was characterized for lines 178h13 (5.3 %), 4h14 (5.4 %), and 41h18 (5.6 %). Almost all the studied varieties have a high stability (Si2=0,00…0,21) of the sign. When increasing the plasticity and stability of varieties in terms of yield, a decrease in these grain quality indicators was observed, as well as a close negative relationship of the grain protein content with yield (r = -0.83). A high degree of positive dependence of the duration of the germination-heading period with HTC (r = 0.97) and yield (r = 0.79) has been established.