Issue №: 4 (43)
The issue of the magazine is devoted to topical issues of improving technologies for growing agricultural crops and managing forestry in conditions of climate change. Considerable attention is paid to the peculiarities of growing corn, soybeans, winter rapeseed, potatoes, eggplant and winter wheat, which play an important role in ensuring the food security of the state. Scientific publications present the results of research on the economic efficiency of corn and soybean cultivation technologies, the formation of rapeseed productivity using different fractions of seeds and foliar fertilization, the influence of fertilization systems, biopreparations and bioprotection on the yield and phytosanitary status of crops, optimization of soil cultivation, protection of plants from harmful organisms, evaluation of hybrids and varieties for economically valuable traits. Separate works are devoted to the structure of fodder lands, landscape felling, forest resources, the use of biological preparations in the cultivation of pine planting material, and the sanitary condition of stands.
EVALUATION OF CORN HYBRIDS BY THE COEFFICIENT OF VARIATION OF INDIVIDUAL PRODUCTIVITY INDICATORS
Steshenko Borys, Postgraduate Student, Department of Genetics, Breeding and Seed Production prof. M. O. Zelensky, National University of Life and Environmental Sciences of Ukraine (37600, Myrhorod, Shyshatska Street 31, apt. 14, e-mail: b.steshenko@nubip.edu.ua, ORCID: https://orcid.org/0009-0007-7159-2102).
Makarchuk Oleksandr, candidate of Agricultural Sciences, Head of Genetics, Breeding and Seed Production prof. M. O. Zelensky department, National University of Life and Environmental Sciences of Ukraine (03041, Kyiv, Generala Rodimtceva str. 1a, e-mail: makarchukoleksandr@nubip.edu.ua, ORCID: https://orcid.org/0000-0002-3348-676X).
The aim of the study was to determine the degree of variability in quantitative traits characterizing the components of individual productivity in mid-early and medium-maturity maize hybrids and to assess their stability across growing years. The study was conducted in 2024–2025 under the conditions of the Agronomic Research Station, a separate subdivision of the National University of Life and Environmental Sciences of Ukraine, located in Bila Tserkva District, Kyiv Region. The research material comprised maize hybrids belonging to the mid-early (FAO 200–299) and medium-maturity (FAO 300–399) maturity groups. The following traits were studied: ear diameter, ear length, number of kernel rows, and number of kernels per row. To assess trait variability, the arithmetic mean, standard deviation, and coefficient of variation were determined. The results showed that the studied hybrids exhibited different levels of variability in individual components of ear structure. The most stable trait was the number of kernel rows: in most cases, the coefficient of variation did not exceed 10%, indicating a high degree of uniformity among hybrids for this trait. The number of kernels per row was characterized predominantly by low and moderate levels of variability. A similar pattern was observed for ear length, although the range of variation among individual genotypes was somewhat wider. The most contrasting trait in terms of variability was ear diameter. In 2024, the coefficient of variation in the mid-early maturity group ranged from 2.79% to 48.68%, with the maximum value recorded for hybrid SDT 9. In 2025, the overall variability of this trait was lower. This indicates different genotype responses to growing-year conditions and the possible manifestation of genotype × environment interaction. A consistently low level of variability across all studied traits over the two-year period was established for hybrid SDT 25 (FAO 380), whereas SDT 14, SDT 19, and SDT 22 exhibited stable values for three traits simultaneously. The results confirm the importance of comprehensive, multi-year evaluation of maize hybrids for identifying genotypes with a high degree of uniformity and stability in the expression of economically valuable traits, as well as for developing a hybrid model with predetermined parameters.
1. Marchenko T.Yu., Vozhehova R.A., Lavrynenko Yu.O., Khomenko T.M. (2019). Minlyvist skladovykh elementiv produktyvnosti hibrydiv kukurudzy riznykh hrup styhlosti za umov zroshennia. Plant Varieties Studying and Protection, 15(3), 279–287. https://doi.org/10.21498/2518-1017.15.3.2019.181093. [in Ukrainian].
2. Beruski G.C., Schiebelbein L.M., Pereira A.B. (2020). Maize yield components as affected by plant population, planting date, crop growing season and soil coverings in Brazil. Agriculture, 10, 579. DOI: 10.3390/agriculture10120579 [in English].
3. Otegui M.E., Bonhomme R. (1998). Grain yield components in maize: I. Ear growth and kernel set. Field Crops Research, 56(3), 247–256. https://doi.org/10.1016/S0378-4290(97)00093-2 [in English].
4. Borrás L., Gambín B.L. (2010). Trait dissection of maize kernel weight: Towards integrating hierarchical scales using a plant growth approach. Field Crops Research, 118(1), 1–12. https://doi.org/10.1016/j.fcr.2010.04.010 [in English].
5. Chen J., Zhang L., Liu S., Li Z., Huang R., Li Y., Cheng H., Li X., Zhou B., Wu S., Chen W., Wu J., Ding J. (2016). The genetic basis of natural variation in kernel size and related traits using a four-way cross population in maize. PLoS ONE, 11(4), e0153428. https://doi.org/10.1371/journal.pone.0153428 [in English].
6. Huo D., Ning Q., Shen X., Liu L., Zhang Z. (2016). QTL mapping of kernel number-related traits and validation of one major QTL for ear length in maize. PLoS ONE, 11(5), e0155506. https://doi.org/10.1371/journal.pone.0155506 [in English].
7. Fernández J.A., Messina C.D., Salinas A., Prasad P.V., Nippert J.B., Ciampitti I.A. (2022). Kernel weight contribution to yield genetic gain of maize: a global review and US case studies. Journal of Experimental Botany, 73 (11), 3597–3609. https://doi.org/10.1093/jxb/erac103 [in English].
8. Korsa F., Dessalegn O., Zeleke H., Petros Y. (2024). Genetic variability for the yield and yield-related traits in some maize (Zea mays L.) inbred lines in the Central Highland of Ethiopia. International Journal of Agronomy, 9721304. https://doi.org/10.1155/2024/9721304 [in English].
9. Gao R., Hu M., Zhao H., Lai J., Song W. (2022). Genetic dissection of ear-related traits using immortalized F2 population in maize. Journal of Integrative Agriculture, 21(9), 2492–2507. https://doi.org/10.1016/j.jia.2022.07.007 [in English].
10. Hurieva I.A. (2003). Metodychni rekomendatsii polovoho ta laboratornoho vyvchennia henetychnykh resursiv kukurudzy (2-he dopovnene vydannia) [Methodological recommendations for field and laboratory study of corn genetic resources (2nd updated edition)]. Kharkiv. [in Ukrainian].
11. Rawal S., Thapa S., Singh R.B., Tripathi M.P. (2023). Agromorphological characterization of maize hybrids and estimation of genetic parameters in mid-hills of Far-West Nepal. Advances in Agriculture, 6138682. https://doi.org/10.1155/2023/6138682 [in English].
12. Khatun M., Monir M.M., Lou X., Zhu J., Xu H. (2022). Genome-wide association studies revealed complex genetic architecture and breeding perspective of maize ear traits. BMC Plant Biology, 22, 537. https://doi.org/10.1186/s12870-022-03913-1 [in English].
About the journal
Cluster Agricultural and veterinary sciences (H1 Agronomy, H4 Forestry)
Name of the publication «AGRICULTURE AND FORESTRY»
The aim of the journal "Agriculture and Forestry" is to highlight the results of fundamental and applied research in the fields of agriculture and forestry, aimed at improving the efficiency of agricultural production and introducing modern technologies into farming practice.
This goal defines the main objectives:
– to ensure the creation of open information access regarding the dissemination of relevant scientific research results to: lecturers of agricultural higher education institutions, postgraduate students, doctoral candidates, research staff, and agricultural production specialists;
– to promote the development of young scientists in agricultural sciences;
– to enhance communication between experienced researchers and young scientists in agronomy and forestry;
– to facilitate the expansion of ties between Vinnytsia National Agrarian University and domestic and foreign educational institutions, scientific establishments, and their academic communities.
The scientific, production, and educational journal "Agriculture and Forestry" is a peer-reviewed open-access publication that publishes original experimental research, theoretical and practice-oriented articles within the cluster of "Agricultural and Veterinary Sciences".
The journal's subject matter covers such areas as agronomy and forestry. Publications of scientific and practical significance address the experimental foundations of agricultural and forestry sector development, innovative production technologies, and the results of fundamental and applied research aimed at increasing productivity, product quality, and the sustainable development of natural and production systems.
Publisher: Vinnytsia National Agrarian University
EDRPOU code: 00497236
Publisher's ROR:05m3ysc06
Prefix DOI: 10.37128/
Frequency is quarterly
Publication languages: (Ukrainian, English)
Media ID R30-05174.
Editor in Chief Ihor Didur
According to the order of the Ministry of Education and Science of Ukraine dated 17.03.2020 № 409. The journal Agriculture and Forestry is included in the List of scientific professional publications of Ukraine Category "B" in agricultural sciences (specialties) - 101, 201, 202, 203, 205, 206.
State registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting No. 1337 and No. 1181. Media identifier – R30-05174.
Scientific journal "AGRICULTURE AND FORESTRY" was founded in 1995; it was entitled as Bulletin of Vinnytsya State Agricultural Institute.
In 2010-2014 was enritled as Collection of scientific works of Vinnytsia National Agrarian University.
It has been named as Agriculture and Forestry since 2015.
Listed in the updated list of scientific professional editions of Ukraine on agricultural sciences under the name Agriculture and Forestry (Order of the Ministry of Education and Science of Ukraine of May 16, 2016; No. 515).
Since 2015, "Agriculture and Forestry". (archive of previous issues for 2015-2019) at http://forestry.vsau.edu.ua/.
The journal “Agriculture and Forestry (ISSN: 2707-5826)” passed the evaluation process of Index Copernicus positively and is indexed in the database of ICI Journals Master List ICV for 2018, 2019, 2020, 2021, 2022, 2023, 2024 is presented in the full list of indexed journals in the Master List International List
ICI Journals Master List Value
