bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPMENT OF SUNDANESE GAMELAN ETHNOMATHEMATICS E-MODULE FOR JUNIOR HIGH SCHOOL MATHEMATICS LEARNING
Authors: Supriyadi Edi , Turmudi T. , Afgani Dahlan Jarnawi , Juandi Dadang
Published: August 2024

Purpose – This study aimed to conduct a needs analysis for developing the ethnomathematics e-module based on Sundanese Gamelan to facilitate mathematics learning in junior high school. Specifically, this study identified crucial components for module development and to gather feedback from both students and teachers regarding the learning material.
Methodology – The Research and Development (R&D) method was used, specifically the Plomp model, to create e-module for mathematics learning. Qualitative data were collected from ethnomathematics experts, a mathematics teacher, and five students via purposive sampling. The instruments used for this data collection included expert validation sheets, student interview recordings, teacher questionnaires, and small group observations. 
Findings – The results indicated that the integration of Sundanese Gamelan ethnomathematics into junior high school mathematics e-module significantly improved students’ understanding and interest in the subject. This culturally infused approach increased students’ motivation and engagement, indicating a potential shift towards more inclusive and culturally responsive educational practices.
Significance – The integration of Sundanese Gamelan ethnomathematics into mathematics curriculum is known for the unique blend of cultural elements with academic content, contributing to enhanced students’ understanding and cultural awareness. In addition, this method offered benefits for students, teachers, curriculum developers, and ethnomathematics researchers, presenting a holistic model that combined educational innovation with cultural appreciation.
NAVIGATING THE GLOBAL LANDSCAPE ON PROJECTBASED LEARNING AND 21ST-CENTURY SKILLS RESEARCH (2020–2023): A BIBLIOMETRIC ANALYSIS
Authors: Chamidah Dina , Suwono Hadi , Susilo Herawati , Sulisetijono Sulisetijono , Munzil Munzil , Zubaidah Siti
Published: August 2024

Purpose – This study aims to conduct a thorough examination and bibliometric analysis of the scholarly articles on PjBL (Project-Based Learning) and 21st-century skills published from 2020 to 2023. The analysis will specifically concentrate on the global distribution of these articles and identifying any prevailing research patterns or trends.
Methodology – Utilizing “PjBL” and “21st-century skills” as search terms, the Scopus database was employed for the analysis encompassing annual publications, nations, institutions, authors, journals, references, and keywords in the field. This analysis was facilitated by VOSviewer and Microsoft Excel 2019 software.
Findings – There has been a significant increase in publication volume between 2020 and 2023. Among the 2,472 articles within the Scopus database by the end of October 2023, Indonesia emerged as the primary contributor of publications among all nations. The VOSviewer indicates that the key issues revolve around, project-based learning (PjBL), pedagogy, critical thinking, education, sustainability, higher education, and 21st-century skills.
Significance – A comprehensive analysis of the global landscape concerning project-based learning (PjBL) and, between 2020 and 2023, aims to uncover pivotal trends, emerging issues, influential authors, and seminal works in educational research. The anticipated outcomes hold the potential to offer multifaceted insights into PjBL and 21st-century skills, contributing to the exploration of innovative educational methodologies. Additionally, this study’s investigation of specific research inquiries aims to provide a holistic overview, further enriching the understanding of these crucial educational paradigms.
EXAMINING ORAL TEST ACCOMMODATION IN ASSESSING MALAYSIAN ORANG ASLI PUPILS’ MATHEMATICS PERFORMANCE FOR COMPUTATION AND WORD PROBLEM TESTLETS
Authors: Veloo Arsaythamby , S. Kanageswari Suppiah Shanmugam  , Suheysen Revindran
Published: August 2024

Purpose - The language load within mathematics test items can lead to inaccuracy in assessing Orang Asli pupils’ mathematical ability due to their struggle in comprehending the academic language. This study aims to determine the validity of using test accommodations in the form of oral academic language and oral native language when administering mathematics computation and word problem test items among the Orang Asli pupils.
Methodology - By employing a quantitative approach, this study utilised random equivalent group design to examine the validity of using oral test accommodations among 334 Grade Four Orang Asli pupils. Three testlets were constructed and used in this study: written test in the academic language (WAL), oral test in the academic language (OAL), and oral test in the native language (ONL). The three testlets comprised Paper 1 and Paper 2, each consisting of 20 mathematics computation and 20-word problem test items, respectively. One-way ANOVA was used to analyse and examine if there were differences in the mathematics performance between the three groups of tests administered to the Orang Asli pupils.
Findings - The results indicated that the test scores of the pupils on the oral tests were higher compared to the written test administered to the pupils for both mathematics computation and word problem items. For computation items, the pupils performed better in the OAL testlet, followed by the ONL testlet. On the other hand, the pupils obtained the highest test scores in the ONL testlet compared to the OAL testlet for word problem items. Furthermore, the results illustrate that there is a difference in the mathematics performance of the Orang Asli pupils between the oral tests in both languages and written tests in the academic language.
Significant - This study clearly shows that language plays a prominent role in affecting the Orang Asli pupils’ mathematics performance. By utilising the oral test as a promising test accommodation, this measure could help address the language barrier faced by the Orang Asli pupils in mathematics testing.
EFL LEARNERS’ MOTIVATIONAL BEHAVIOR: A COMPARISON ACROSS TEN GRADE LEVELS
Authors: Cheng Yuh-Show
Published: August 2024

Purpose – Given the research gaps identified in a literature review, this study aims to uncover how the intensity of learners’ motivational behavior and its predictors vary with grade level.
Methodology – A large-scale survey was conducted to examine motivational behavior and its predictors among EFL learners across three education levels and ten grades in Taiwan: primary school (Grades 3 to 6), junior high school (Grades 7 to 9), and senior high school (Grades 10 to 12). A total of 12,441 valid cases were collected from both rural and urban areas in Taiwan. ANOVA and multiple regression analysis were used to analyze the data.
Findings – The results showed a significant effect of grade level on the intensity of motivational behavior. Specifically, learners’ intensity of motivational behavior tended to decline with grade level (years of study). The significant predictors of motivational behavior also differed with grade level. 
Significance – In addition to theoretical and methodological contributions to L2 motivation research, this study can enhance understanding of factors that could enhance learners’ motivational behavior and offer implications to assist EFL teachers in developing motivational teaching strategies.
EMPOWERING STUDENTS' PANCASILA AWARENESS AND CULTURAL RESILIENCE THROUGH A LOCAL MINANGKABAU-BASED PANCASILA EDUCATION MODULE (PETATAH-PETITIH)
Authors: Sunarti Sunarti
Published: August 2024

Globalization and modernization are now starting to cause concern among the public concerning the preservation of traditional cultural values that exist in Indonesia, where one of the cultures that is starting to disappear among elementary school students is Petatah Petitih Minangkabau. It is necessary to make efforts to preserve this culture, one of which is to develop a module based on Minangkabau local culture (Petatah-Petitih). This research is development research using the 4-D model, Definition (Define), Design (Design), Development (Develop) and Dissemination (Disseminate). The samples in this study were students in class IVc at SDN 01 Lima Kaum with a total of 21 students. Data collection techniques in this study used interviews, questionnaires, and observation. As for the research results, namely the results of product validation by the three validators declared valid, namely the results of validator 1 90.78% in the very valid category, the results of validator 2 88.75% in the very valid category, and the results of validator 3 95.94% in the very valid category. The level of product practicality is also in the very practical category, namely in the student practicality test the score is 84.25% and the teacher's practicality test is 95%. In addition, because the module developed is an integration of Minangkabau culture, the level of student cultural resilience is at 88.10% in the very good category after using the module. There are 6 dimensions of the Pancasila profile that emerge in students through the use of the Minangkabau Local Culture-Based Pancasila Education Module (Petatah-Petitih). It can be concluded that the development of the Minangkabau Local Culture-Based Pancasila Education Module (Petatah-Petitih) can strengthen the Pancasila profile and cultural resilience of students.
CREATING DIGITAL TEACHING MATERIALS THAT UTILIZE AUGMENTED REALITY HAS THE POTENTIAL TO ENHANCE STUDENT'S CRITICAL THINKING ABILITIES
Authors: Firdaus Fikri Zauharul , Khodijah Neneng Fauziah , Inayah Ina Nurul
Published: August 2024

This study aims to create digital educational resources centered around Augmented Reality (AR) that focus on plants' various parts and functions, with the intention of enhancing critical thinking abilities. The study follows a development research approach, utilizing the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) research design. Data was gathered through expert evaluations, teacher assessments, test questions, student worksheets, and student response questionnaires. The data was then quantitatively analyzed descriptively. The findings revealed that the teaching materials received high ratings from experts, with a score of 96% and a CVR and CVI of 0.95. Before using the teaching materials, students' critical thinking skills were measured at 62.55, significantly improving to 87.55 after implementing the materials. The increase in students' critical thinking skills was measured at 65.55. Additionally, 91% of students strongly agreed with the effectiveness of the Augmented Reality (AR)-based digital teaching materials. This research encourages technology developers to create more AR-based educational content that suits the needs of the curriculum and the target skills they want to improve, such as critical thinking.
ACHIEVING SUSTAINABLE DEVELOPMENT GOALS 4 BY CREATING AN INCLUSIVE SCHOOL ENVIRONMENT THROUGH LITERACY PROGRAM INTEGRATED WITH THE ANTI-BULLYING PROGRAM
Authors: Zidniyati Zidniyati , Faizah Kurniyatul , Anggraeni Lia
Published: August 2024

This study aimed to create a literate and inclusive school environment by providing literacy and anti-bullying training to elementary school teachers and principals. The research was conducted in 20 primary schools in Banyuwangi Regency, Indonesia over three years from 2021 to 2023. In the first year, the focus was on a balanced literacy program that followed key stages: 1) developing reading and writing habits, 2) searching, browsing, processing, and understanding information, 3) analyzing, responding, and using written texts, and 4) developing understanding and potential to participate in the social environment. The second year focused on an anti-bullying program that targeted indicators like setting consistent rules, creating inclusive study groups, and identifying potential behavior problems. By the third year, 75% of teachers were able to create literacy-rich and inclusive classroom environments, apply consistent rules, and conduct ongoing socialization with other teachers. The results showed improvements in teachers' abilities to implement balanced literacy activities, use reading comprehension methods, create student-authored books, and apply anti-bullying strategies. The study concludes that the integrated literacy and anti-bullying program was successful in preparing students with strong literacy skills while also creating a safe and inclusive learning environment. Overall, this research demonstrates how a holistic approach targeting both literacy development and anti-bullying measures can lead to positive outcomes for elementary school students.
DEVELOPMENT OF PROJECT-BASED LEARNING WORKSHEETS IN ELEMENTARY SCHOOL SCIENCE SUBJECTS
Authors: Maharani Dian , Pratiwi Etty , Lubis Patricia H.M.
Published: August 2024

Penelitian ini bertujuan untuk menghasilkan produk Project Based Learning yang valid dan praktis. Metode yang digunakan dalam penelitian ini adalah metode penelitian dan pengembangan. Subjek dalam penelitian ini adalah siswa kelas V SDN 140 Palembang tahun ajaran 2023/2024. Pengembangan Lembar Kerja Siswa (LKS) dikembangkan dengan menggunakan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Penelitian ini menggunakan teknik pengumpulan data observasi, angket (lembar validasi, lembar respon siswa dan pendidik), dan dokumentasi. Hasil penelitian ini menunjukkan bahwa pengembangan LKS yang dikembangkan memiliki kategori sangat valid. Berdasarkan lembar angket validasi ahli media, ahli materi dan ahli bahasa dengan nilai rata-rata validitas sebesar 90,29% dan tingkat praktikalitas setelah diujicobakan kepada siswa memenuhi kriteria sangat praktis dengan nilai rata-rata sebesar 93,35%. Berdasarkan hasil validasi dan praktikalitas maka dapat disimpulkan bahwa Pengembangan LKS Berbasis Project Based Learning pada Kelas V SD fokus mata pelajaran IPA layak digunakan dalam proses pembelajaran.
PENGGUNAAN BAHASA PROKEM PADA GRUP WHATSAPP EKSTRAKURIKULER SENI SKABA DI SMAN 1 KARANG BAHAGIA BEKASI
Authors: Aprianti Inka , Septiani Dwi
Published: August 2024

Penelitian ini membahas mengenai bentuk bahasa prokem, perubahan struktur secara fonologis dan pembentukan kosakata secara morfologi pada Bahasa prokem dalam grup chat whatsapp ekstrakurikuler seni skaba di SMAN 1 Karang Bahagia Bekasi. Penelitian ini menggunakan metode deskriptif kualitatif. Sumber data penelitian ini diambil dari kolom grup chat Whatsapp ekstrakurikuler seni skaba. Data diperoleh menggunakan teknik sadap, teknik simak bebas libat cakap (SLBC), dan teknik catat. Data kemudian dianalisis menggunakan teknik bagi unsur serta teknik perluas. Dari data yang diperoleh, telah ditemukan data dengan bentuk Bahasa prokem sebanyak 40 data. Pertama, ditemukan 21 perubahan struktur fonologi yang terdiri dari santuy, asek, hayu, maen, kuy, maaciw, acu, retjeh, shok, sama, wokeh, hayu, skuy, ugha, ngadi-ngadi, gaes, tiati, bet, canda, tutor, dan gans. Di antaranya terbagi menjadi 4 penggantian vokal, 1 pembalikkan suku kata, 1 penambahan vokal dan konsonan, 2 pengganti konsonan, 1 penghilang konsonan, 4 penambahan konsonan, 2 pengganti vokal dan konsonan, 2 penghilang vokal dan konsonan, 1 penghilang suku kata pertama, 1 penghilang suku kata terakhir, dan 1 penghilang suku kata terakhir dan penambahan konsonan. Kedua, ditemukan 20 data yang terkait dalam pembentukan suku kata secara morfologi ialah, mager, boti, baksos, japri, nobar, salfok, pensi, ultah, bocil, PC, PAP, GWS, HBD, GPP, BTW, KEPO, OTW, DM, ngadi-ngadi, dan abong-abong. Di antaranya, terbagi menjadi 9 akronim, 7 abreviasi, dan 2 reduplikasi.
WACANA GRAFITI PADA ANGKUTAN UMUM DI KABUPATEN TIMOR TENGAH UTARA
Authors: Lawak Veronika , Dapubeang Abdul Rahim Arman Putera , Pinka Rafli Ubit
Published: August 2024

Penelitian ini memiliki dua tujuan, yaitu untuk mendeskripsikan bentuk  wacana grafiti pada angkutan umum di Kabupaten Timor Tengah Utara, untuk mendeskripsikan makna wacana grafiti pada angkutan umum di Kabupaten Timor Tengah Utara. Jenis penelitian ini adalah deskriptif kualitatif. Subjek penelitian adalah angkutan umum di Kabupaten Timor Tengah Utara khususnya di kota  Kefamenanu. Teknik pengumpulan data dilakukan melalui teknik observasi dan dokumentasi. Teknik analisis data dilakukan secara deskriptif kualitatif dengan menggunakan model  Van Dijk. Hasil penelitian menunjukkan bahwa bentuk wacana grafiti pada angkutan umum diklasifikasikan berdasarkan (1) Deskripsi struktur makro (tematik/alur) wacana grafiti: grafiti sosial, grafiti ekonomi, grafiti romantis, dan grafiti religi. (2) Deskripsi superstruktur  (skema) wacana grafiti deskripsi struktur mikro (tematik/alur) wacana grafiti. (3) deskripsi struktur mikro wacana grafiti: a) Semantik: latar, detail, maksud, dan praangkapan. b) Sintaksis: bentuk kalimat, koherensi (koherensi sebab-akibat), pengingkaran. c) Leksikon, d) Retoris, (grafis dan metafora) (4) deskripsi konteks wacana grafiti a. S: latar, P: peserta tuturan, E: tujuan, A: pesan atau amanat K: kunci, I: sarana, N: norma, G: jenis.
Examining the Influence of Institutionalization on Employee Performance in Yemen's Textile Industry.
Authors: Alhamad Akram
Published: August 2024

Institutionalization is a management strategy that differs from traditional management in that organizational structures are designed to be more flexible, participatory, and free of hierarchy and detail. Additionally, institutionalization emphasizes the efficient application of professional management strategies. In other words, institutionalization refers to creating a functional mechanism inside the firm. The textile industry in Yemen is vital to the nation's economy since it substantially contributes to economic development and creates jobs. Institutionalization, which is the process of establishing and adhering to formal rules, processes, and practices inside organizations, might affect its effectiveness. There are several other aspects as well. Within the framework of the Yemeni textile industry, the purpose of this research is to explore the influence that institutionalization has on the performance of employees. This research demonstrates the need to establish successful institutionalization within the Yemeni textile industry based on the literature review conducted before this study. Policymakers, managers, and industry stakeholders are urged to build and implement strong institutional frameworks that enable employee involvement, empowerment, and appreciation. These frameworks should be designed to maximize staff productivity. By doing so, businesses can improve their employees' performance, increase their productivity, and contribute to the continued expansion of the textile industry in Yemen.
New trends in sustainable supply chains: insights from recent studies
Authors: Mukanov Tynchtyk , Umetaliev Akylbek , Mambetkulova Asel , Kaiyrbekov Almaz , Goncharova Irina , Veres Péter , Tamás Péter , Kannazarova Zulfiya
Published: August 2024

Research on the Sustainable Supply Chain is a significant focus within the academic community, highlighting the importance of smart logistics, smart transportation, and digital technologies. This paper reviews current research trends from 2014 to 2023 by analyzing publications from the Web of Science database. The bibliometric analysis covers publication counts, document types, top-cited papers, leading journals, main funding sponsors, and distribution by subject categories, countries, and institutions. Additionally, co-authorship and keyword co-occurrence were examined to identify key knowledge components and research clusters. The analysis underscores the need for expanded international research and continuous integration of Sustainable Supply Chain concepts for future development. The goal of the document is to provide a comprehensive review of research and industrial trends and key insights in the fields of smart logistics, smart transportation, and digital technologies in recent years.
Effects of operation parameters of material handling machines to the applicability
Authors: Telek Péter
Published: August 2024

In the past period, the structure and technical elements of material handling machines have changed significantly due to changes in service expectations, technical possibilities and environmental conditions. There are devices that are easier to adapt to certain technical changes, while others may be completely out of industrial use. The purpose of this article is to provide an overview of the most important properties affecting the operation of material handling equipment and to present the relationships between these properties and the applicability. By exploring the relationships between these properties and the most typical areas of application, it is possible to select the most suitable tools. An example task is also presented in the article to show how the method works.
Translating Iraq’s selected Covid-19 Cartoons into English
Authors: Al-Taie Ruqaya
Published: August 2024

Cartoons, since they combine written text and visual content, has a major role in conveying different messages about Covid-19. This significance has typically come from the power of images and words that occurred in the cartoons and their impact on receivers’ response thereafter. In translation, cartoon creates difficulty because of the cultural aspects and ideas that are created for a specific audience and community. Hence, in this paper, the focus will be specifically on analysing the language of selected cartoons and the translation approaches of the cartoonists’ language in the Covid-19 era in Iraq, and this analysis is attained by adopting Norman Fairclough’s model of critical discourse analysis. The researcher has categorised cartoons as follows: rhetorical, idiomatic, narrative, and rhymed, so this paper will concentrate on the analysis of the message behind each category that is employed to influence the audience and how it can be translated, especially if it encompasses idioms related to the Iraqi culture, musical rhyme, rhetoric, and pun. Accordingly, analysis of the constituent aspects of the cartoons necessarily takes place on linguistic and cultural levels so as to distinguish how each cartoonist represents the denotative and connotative meanings of the lexical items that are associated with cartoons drawings.
Quitinasas como un nuevo grupo de panalérgenos: un enfoque in silico desde sus bases estructurales e inmunológicas
Authors: Munera Marlon , Contreras Neyder , Sanchez Andres , Sanchez Jorge , Emiliani Yuliana
Published: August 2024

Introducción: las quitinasas son enzimas modificadoras de quitina y se han reportado como alérgenos en plantas y poco en animales, aunque poseen reactividad cruzada debido a su alta conservación. Objetivo: explorar el potencial alergénico y el mimetismo molecular entre quitinasas de fuentes alergénicas comunes mediante bioinformática. Métodos: se utilizaron ElliPro y BepiPred para predecir epítopos de células B y T. Se realizaron estudios filogenéticos, de identidad y de conservación estructural con MEGA 5, PRALINE y Consurf. Se obtuvieron modelos 3D de quitinasas no reportadas en el Protein Data Bank mediante Swiss model. La capacidad de unión de ligandos se exploró con AutoDock Vina, utilizando Bisdionina C, Bisdionina F y Montelukast como ligandos. Resultados: la quitinasa de P. americana (Per a 12) comparte un 44% de identidad con homólogos en P. vannamei, ácaros e insectos, y una identidad moderada con la quitinasa humana. Se reveló una alta homología estructural. Un epítopo lineal entre los residuos 127 y 144 está altamente conservado en todas las quitinasas. Se predijeron tres epítopos de células T conservados. Las simulaciones de acoplamiento molecular revelaron el sitio activo y el potencial de unión de varios ligandos, identificando residuos críticos. Conclusión: proponemos a las quitinasas como un nuevo grupo potencial de panalérgenos, explicando casos de sensibilización a varias fuentes alérgenas. Dado su homología con proteínas humanas, merece una exploración inmunológica para apoyar su implicación en la respuesta autoinmune.
الضبط الانفعالي وعلاقته بالأداء الخططي للاعبي اندية الدرجة الأولى بكرة القدم
Authors: Prof. Dr. Muslim Hasab Allah Ibrahim
Published: August 2024

قام الباحث بدراسة بعنوان الضبط الانفعالي وعلاقته بالأداء الخططي للاعبي اندية الدرجة الأولى بكرة القدم ، واستخدم الباحث المنهج الوصفي، وتمثلت أدوات البحث باستخدام المراجع والمصادر العلمية والمقابلات الشخصية، كالاستبيان والمقابلة الشخصية تم تطبيق الدراسة على عينة بلغت (478) لاعباً من اندية دوري الدرجة الأولى بكرة القدم في العراق وقد قام الباحث ببناء مقياس الضبط الانفعالي وبعد ذلك تم تطبيقه على عينه البحث بعد اكمال المقياس بصورته النهائية وكانت أهم النتائج استنتج الباحث ان المقياس الذي تم بنائه اثبت اهميته وحقق نتائج ايجابيه في الضبط الانفعالي والاداء الخططي للاعبين وان لاعبي كرة القدم لديهم القدرة على تحمل كل الضغوط التي تواجههم اثناء العملية التدريبية وفي المنافسات وان لديهم دور إيجابي من خلال القدرة على المشكلات واتخاذ القرارات الصائبة بصالح نتائج البحث الايجابية
Physical construction and typical black soil structure under different systems of main cultivation and fertilization of agrophytocenoses of field crop rotation
Authors: Prymak I. , Panchenko T. , Ezerkovska L. , Karaulna V. , Voytovik M. , Obrajyy S. , Prysyazhnyuk N. , Kachan L.
Published: August 2024

Four-year (2019-2022) studies at the experimental field of Bila Tserkva National Agrarian University established that the structural density of the arable layer of typical black soil significantly increases with chisel-disk and disk tillage, but does not exceed the critical value – 1.30 g/cm³. Fertilization systems did not significantly affect the change of this indicator. Weight by volume of the upper part (0-10 cm) of the arable layer increases significantly only with disk-less tillage on the date of crop rotation crops sowing . The structural density of middle (10-20 cm) and lower (20-30 cm) parts of the arable layer was significantly increased with disc-less and especially disc tillage. This indicator in the lower part of the arable layer exceeded the critical value for chisel-disc tillage on the harvest date, and for disk tillage – during all observation periods. The total porosity of the arable layer decreases significantly with chisel-disc and disk tillage, and insignificantly – with differentiated tillage, but does not exceed the critical level of 50%. Changes in the value of total porosity of the upper part of the arable layer according to the tillage options are insignificant. In middle and lower parts of the arable layer this indicator decreases significantly with shelf-less disk and disk tillage, and insignificantly – with differentiated tillage. The volume of capillary pores in the arable layer on the sowing date for all tillage options is almost at the same level, and on the harvesting date it is significantly higher than for shelf-less and disc tillage. On the harvesting date the capillary porosity of the upper part of the arable layer significantly decreased under differentiated tillage, and in the middle and lower parts – significantly increased under shelf-less disk and disk tillage. The non-capillary porosity of the arable layer is significantly lower than chisel-disc and disc tillage. In the upper part of the arable layer this indicator is significantly lower on the sowing date for shelfless-disc cultivation, and harvesting – also for disc cultivation. In middle and lower parts it is significantly lower on the sowing date than shelfless-disc and disc, and harvesting – even under differentiated tillage. The arable layer structure is almost at the same level according to the tillage options. With shelf-less disk and disk processing, there is a well-defined heterogeneity of this layerby the content of waterproof aggregates in its various parts. Fertilizers significantly improved this indicator. Crop rotation productivity is almost at the same level as shelf-disc and differentiated and significantly lower than shelf-disc and disc tillage.
Key words: typical black soil, fertilizers, crop rotation, tillage, construction, structure, porosity, productivity.
Assessment of heterosis and important decorative traits in new rose hybrids in F1
Authors: Ukrainets O. , Polishchuk V.
Published: August 2024

The article presents the research results of intervarietal roses hybridization: the parent varieties were studied according to the main decorative indicators, the effect of heterosis of F1 hybrids over the parents was evaluated by the following traits: plants height, flower diameter, number of petals per flower, number of flowers blooming in one flowering wave (rose productivity). The analysis of inheritance of quantitative traits in hybrids according to the degree of dominance was carried out. The research was conducted in accordance with generally accepted national field and laboratory methods and standards. According to the research scheme, valuable decorative traits of introduced rose varieties were studied, parental pairs for selection were chosen, hybridization was carried out, peculiarities of heterosis manifestation and inheritance of quantitative traits in hybrids by the degree of dominance were evaluated. Valuable decorative traits in promising hybrid rose progeny were also evaluated, followed by selection of valuable genotypes to improve selective traits in new varieties. According to the research, plants height varies from 43.2 cm («Goldelse» variety) to 102 cm («Hans Gonewein Rose» variety), and the average value for the varieties is 71.4 cm. The average flower diameter was 7.6 cm, and the largest flower diameter (more than 9 cm) was observed in the varieties «Amelia», «Lidka» and «Nostalgie». The largest number of petals was in the «Cream Abundanc» variety – 67.0 pcs, while the smallest – in the «Santa Monika» variety – 15.6 pcs. The largest number of flowers per bush formed during one flowering wave was observed in «Hans Gonewein Rose» and was equal to 424.4 pcs. During the initial study of rose hybrids their main quantitative indicators were evaluated. The tallest were hybrids from the combinations P1×P3 and P2×P6 – 105.7 cm and 103.5 cm respectively. The average height of the varieties was 69.0 cm. The largest flower diameter, which exceeded 9.0 cm, was observed in hybrids from combinations: P10×P2, P9×P7 and P1×P6. The number of petals in the hybrids varied from 12 per flower to 62. Hybrids of the combinations P5×P10 and P7×P4 had the highest average number of flowers per flowering wave and were equal to 144.5 and 102.0 pcs. respectively. Compared to the parental forms, the studied offspring usually had negative true and hypothetical heterosis. The dominance degree (hp) in most hybrids had negative overdominance (hp<-1). Among the combinations the highest positive heterosis (Hip and Hspr) for the studied parameters was in hybrids P5×P10, P1×P3, P9×P7 and P1×P6. Among all first-generation hybrids negative heterosis by all indicators was found in 31.3%. For green construction and selection process as carriers of decorative valuable and biological indicators the hybrids from combinations are quite promising: P5×P10, P10×P2, P10×P5, P8×P6, P2×P6, P6×P8, P5×P6, P1×P6 and P7×P9.
Key words: rose, selection, hybridization, heterosis, degree of dominance, hybrid, decorative traits.
Productivity of leaf mustard plants depending on different seed sowing rates combinations and row spacing in the conditions of the North-Eastern Steppe of Ukraine
Authors: Rozhkov A. , Kyrychenko M.
Published: August 2024

The article present the research results on the influence of different seed sowing rate combinations and row spacing on the elements of plant productivity and the biological yield of leaf mustard seeds in the conditions of the North-Eastern of Ukraine. The goal of research was to evaluate the complex impact of seed sowing rate combinations and row width on the elements of plant productivity and to determine the best options for obtaining the highest biological yield of leaf mustard seeds. The researches were conducted in 2020, 2021 and 2023 on the basis of farm enterprise «Kyrychenko M» of Boriv district, Kharkiv region. The multi-factor experiment was carried out using the method of split plots in three repetitions. The plots of the first order were two varieties of leaf mustard (factor A): «Prima» and «Felicia», of the second order – three variants of row spacing (factor B): 15, 30 and 45 cm, and of the third order – five variants of sowing seeds rate (factor C): 1.4, 1.6, 1.8, 2.0 and 2.2 million pcs./ha. The experiment was carried out in three repetitions. The area of the sowing plot was 72m2. In terms of plant productivity of both mustard varieties the advantage was given to the options for seed sowing rates combining of 1.4 and 1.6 million pcs/ha with row spacing of 15 cm. In particular the number of pods per plant on these variants in the «Prima» and «Felicia» mustard varieties was 59.4 and 58.1 pcs., the number of seeds in a pod – 11.8 and 10.7 pcs., the number of seeds per plant – 689-700 and 624 pcs., seed weight of one plant is 2.24-2.29 and 1.96-1.97 g, respectively. The highest biological seed yield in the experiment – 2.29 t/ha – was obtained from «Prima» mustard variety in the combination of the seed sowing rate of 1.6 million pcs./ha with 15 cm 205 between rows. A further increase in the sowing rate led to its insignificant decrease. The «Felitsia» mustard variety has the highest biological yield – 2.25 t/ha, formed with the same row spacing, but with a higher seeding rate – 2.0 million pcs./ha. However there was no significant difference in this indicator compared to the seed sowing rate of 1.8 million pcs./ha, which indicates the impracticality of its increasing to 2.0 million pcs./ha.
Key words: leaf mustard, seed sowing rate, variety, biological seed yield, row spacing, productivity elements.
Evolution of methods for assessing and selecting winter wheat plants from advanced frost and winter hardiness in the Forest-Steppe of Ukraine
Authors: Dubovy O. , Vorobyov V. , Ryabchuk O.
Published: August 2024

It is known that the success of physiological and breeding approaches to increase frost resistance depends significantly on fundamental research into the nature of plant damage during overwintering and the determination of new ways of evaluating and selecting the offspring of resistant genotypes. Many researchers believe that winter hardiness is a complex and variable property of a plant organism, which is determined by a large complex of physiological and biochemical features and anatomical and morphological peculiarities. In different regions where winter wheat is sown, there are specific conditions of the autumn-winter-spring periods. The percentage of plants of a specific variety that survived after freezing in artificial climate chambers does not always characterize their real resistance to adverse overwintering conditions. A more convincing indicator of plants resistance is to evaluate them in specially created extreme conditions of the natural environment with the combined effect of all changing environmental factors and obtaining the offspring of surviving plants. A retrospective analysis of the evolution of methods for assessing frost and winter resistance of winter wheat plants was carried out, and on this basis an energy-saving method of ecological assessment and selection of plants with increased frost and winter resistance was shown. The basis of this method is specially created extreme natural conditions, which will contribute to the assessment and selection of plants for frost and winter resistance. On the basis of long-term research specific technical and technological solutions have been determined for the development of such a method by using soil baths placed above the ground. On the basis of the analyzed methods of evaluation and selection of winter wheat plants, an energy-saving method of obtaining plants with increased frost and winter resistance in extreme natural conditions of the autumn-winter-spring periods was proposed.
Key words: soil baths, winter wheat, extreme temperature conditions, frost resistance, winter resistance, climate change.
The degree of genetic stability of amphidiploids from Triticinae tribe
Authors: Vdovychenko Zh. , Cichoński Ja. , Shubenko L. , Chrzanowski G.
Published: August 2024

Modern cultivars of wheat have narrowed genetic diversity. Their further improvement requires the expansion and enrichment of the gene pool. One of the sources of valuable genes for adaptive traits is considered to be related wild species of wheat, the involvement of which is possible through remote hybridization. However, the wide application of this method is severely limited due to a certain level of biological incompatibility of the crossed species: there is often no normal chromosome pairing, which leads to low fertility and the transfer of foreign genes to the genetic background of cultivated species as whole chromosomes or large translocations. Also, amphidiploids and lines with foreign introgressions show a certain level of genetic instability, because they experience the so-called «genomic shock». The purpose of this research was to study the «genomic shock» in amphidiploids from species of the tribe Triticinae, from the genus Aegilops and Triticum. The plants were analyzed by a set of morphological features and electrophoretic spectra of storage proteins (gliadins). A search was made for plants that would have deviations from the typical morphotype or electrophoretic profile of the corresponding amphidiploid. Such deviations could indicate the course of «genomic shock» caused by polyploidization. The study of this phenomenon is important to find methods of accelerating diploidization processes, restoration of genetic stability and normal fertility in amphidiploids. The results of the study showed the stable expression of the morphological features in all studied amphidiploids. Examination of the electrophoretic spectra of gliadins revealed the presence of some grains, which were marked either by the presence of additional protein components or by the absence of certain components. It cannot be ruled out that the appearance of atypical grains among the offspring of the studied amphidiploids may be a consequence of the «genomic shock».
Key words: remote hybridization, genomic shock, gliadins, amphidiploids, Triticinae.
Interaction of cultivated plants and weeds in ten-field crop rotations
Authors: Yeshchenko V. , Koval G. , Naklyoka O.
Published: August 2024

At the Department of General Agriculture of the Uman University of Horticulture the study of allelopathic relationships of cultivated and weedy plants was conducted for a long time in a stationary experiment with 10-field crop rotations: typical option 11 – the first field – corn for green mass; the second is winter wheat; the third – sugar beets; the fourth – barley with clover seeding; the fifth – clover; the sixth – winter wheat; the seventh – sugar beets; the eighth – peas; the ninth – winter wheat; the tenth is corn. In variant 1 corn was grown in the third field instead of sugar beets in the standard variant; in variant 2 instead of corn in the tenth field – sunflower, in va riants 7 and 8 – sugar beets and winter wheat, respectively. In variant 4 maize was grown in the last three fields of the typical variant 11. The test crop in our experiment was corn for green mass, therefore, in the final year of the second crop rotation the species composition of weeds in these crops plantations was determined. It turned out that in a typical crop rotation chicken millet and yellow bristle were the main polluters. The proportion of these weeds increased in crop rotations 1 and 4, and decreased in crop rotation 7, where the proportion of broad-leaved weeds increased. The total number of weeds decreased in crop rotation 2, where sunflowers were grown instead of corn in the tenth field. A positive relationship has been established between the root residues of crops and weed seeds germination in the following paired combination: corn – chicken millet; sugar beets – white quinoa; sugar beets – common amaranth and sugar beets – yellow bristle. In another vegetation experiment the soil taken from the rhizosphere of corn contributed to chicken millet germination, and the soil from sugar beets stimulated seeds germination of white quinoa and common amaranth. The soil from sunflower rhizosphere significantly reduced seed germination intensity of common amaranth and yellow bristle. Water extracts from chicken millet and yellow bristle had a negative effect on the initial corn growth, the extracts from white quinoa practically did not affect both growth indicators, and the extracts from common amaranth contributed to corn plants height while simultaneously increasing their weight.
Key words: crop rotation, weeds, root residues, water extractions.
Methodological foundations of preservation and enrichment of highly decorative green spaces in historical parks: review
Authors: Krupa N. , Oleshko O.
Published: August 2024

Historic parks highly decorative green spaces protection and enrichment is a crucial task in the cultural heritage and biodiversity preservation since after a great many years of operation, historical parks lose their original appearance and, therefore, need some reconstruction to preserve their uniqueness. There previous studies have proven that historical parks green areas preservation and enhancement requires an integrated approach along with taking into account many aspects. i.e. historical, biological, landscape and social. Foreign experience suggests including the task of adapting the objects to the modern requirements of the 21st century or taking into account climate change into the historical parks renovation. Currently, most of the historical parks are in an unsatisfactory state. Hence, the formation of a system of effective methods of preservation and reconstruction of historically valuable landscape park compositions is of particular relevance. Plants that transform themselves in the process of aging, as well as under the pressure of anthropogenic influence, climatic changes or other factors make the basis of historical parks landscapes. Parks reconstruction involves the implementation of a set of measures aimed at restoration and modernization with which results in improving their functional, aesthetic, ecological and social characteristics, preserve their historical and cultural significance. Running these works requires carrying out a multidisciplinary inventory and landscape assessment not only of introduced species, but of ancient trees of aboriginal breeds as well. It is also worth considering the factor of allelopathic soil fatigue caused by the species longstanding (sometimes even for centuries) cultivation in the same places. It was concluded that the methodological basis for the preservation, enhancement, maintenance and development of historical parks plant compositions and the creation of highly decorative and ecologically effective plantations on their basis should be based on a three-level structure comprising statistical-analytical, experimental and statistical-modeling studies. Comprehensive studies of the inventory direction are also of great importance.
Key words: methodological foundations, historical park, green areas, historical landscape, park, reconstruction.
Chemical composition of promising sweet cherry variaties «Cerasus avium (L.) Moenh» grown in the Forest-Steppe of Ukraine
Authors: Kishchak O. , Slobodianiuk A.
Published: August 2024

In Ukraine sweet cherries is a traditional early-ripening crop, the fruits of which due to their high consumer and dietary properties are in unlimited demand in the fresh produce market. The main areas of its industrial plantations are concentrated mainly in the Steppe zone. At the same time, significant achievements of Ukrainian scientists in the creation of adapted large-fruited varieties, highly productive winter-resistant rootstocks and effective types of plantings contribute to the active spread of culture in the forest-steppe zone, which until recently was considered limitedly suitable for its cultivation. This requires careful study and selection of an industrial assortment with high consumer qualities of fruits. To assess the chemical composition, including the content of dry soluble substances, sugars, organic acids and vitamin C, fruits of 27 promising varieties of different ripening periods, grown in the plantings of the Institute of Horticulture of the National Academy of Sciences of Ukraine on a medium-sized clonal rootstock «Krymsk 5», were selected using generally accepted methods. Different variety changeability was established in terms of the chemical fruits composition, in particular, low – for the content of dry soluble substances, sugars and acids, and high – for the content of vitamin C. Under favorable weather conditions among the varieties of the early ripening period, the fruits of the «Dzherelo» variety were noted for their best sugar content (17.66%), medium – «Vasylisa Prekrasna» (18.73%) and late – «Annushka» and «Donetska Krasunya» (16.58-16.93%) and on average during the research years they accumulated sugars of 13.17- 14.41%. The same varieties, as well as «Stark Hardy Giant», «Novynka Turovtseva» and «Etyka», on average during the research years accumulated the largest amount of dry soluble substances – 17.6-20.5%. Over the research years the fruits of all cherry varieties, regardless of the ripening period, accumulated an average of 0.76-0.86% of organic acids. The lowest acidity indicators (0.61-0.66%) were noted in the yellow-fruited varieties «Nizhnist», «Lyubava» and «Donchanka», which also differ in the lower content of vitamin C – 4.58-5.5 mg/100g. Early ripening varieties are characterized by a higher ability to accumulate it (10.4-10.7 mg/100g). In the group of late ripening varieties «Novynka Turovtseva» (10.1 mg/100g) stands out according to this indicator, among the medium-ripening varieties – «Vasylisa Prekrasna» (11.71 mg/100g), which according to organoleptic evaluation and a set of indicators stood out as the best among the studied varieties. The research has established that in terms of chemical composition these sweet cherry fruits were not inferior to those grown in the Southern Steppe zone of Ukraine.
Key words: sweet cherry, varieties, dry soluble substances, sugars, organic acids, sugar-acid index, vitamin C.