INFLUENCE OF UV-B RADIATION ON ADAPTIVE CAPACITY AND STABILITY OF PUMPKIN SAMPLES
Abstract
In modern conditions, when climate change is occurring and anthropogenic pressure on agroecosystems is increasing, the problem of increasing the adaptive capacity and stability of agricultural crops is becoming more relevant. Purpose. To evaluate genotypes in accordance with their adaptability and stability in order to develop new stress-tolerant pumpkin varieties suitable for growing in the conditions of South of Ukraine. Methods. Laboratory, field measurement and calculation, comparative methods, and mathematical and statistical analysis were used. During the seedling growth period, the plants were subjected to ultraviolet irradiation (wavelength range 320–280 nm) using a UVD 150 PT2398 30W/G30 T8 (UVB-3W) ultraviolet lamp, with an exposure time of five hours. Results. The genotypes were evaluated for their adaptive capacity, stability and plasticity. The following were determined: general adaptive capacity (GAC), specific adaptive capacity (SAC), relative genotype stability (Sgi), plasticity (bi), genotype selection value (GSV) based on the traits “drought tolerance”, “heat tolerance”, “plant productivity” and “fruit quality”. Samples exhibiting a high level of adaptability were identified: sample L 67 (Yuvilei F5) was selected for its high drought tolerance (SAC = 39.1; GSV = 1.9). Altair was the best variety in high heat resistance (SAC = 4.8; GSV = 59). The sample L 61 (Winter Liquorice F5) was selected for its higher yield (12.4 kg/plant; SAC = 1.8; GSV = 5). L 72 (Jane de Paris F5) was selected for its dry soluble solids content in the fruit (SAC = 0.3; GSV = 65). The samples studied are characterised by high stability (Sgi = 10.6–13.1%), with the highest value obtained for sample L 61 (Winter Sweet F5). Sample L 67 (Yuvilei F5) was noted for its high ecological plasticity (bi = 0.1); in the other samples, bi = 0.6–3.0, which is characteristic of high-yielding varieties. Conclusions. We assessed pumpkin samples for their adaptability and selected the best genotypes with a view to developing new stress-tolerant, high-yielding varieties for the South of Ukraine.
References
2. Gideon, S. M. (2024). Harnessing UV-radiation for enhanced agricultural production: benefits on nutrition, quality, and sustainability. All Life, 2381141 https://doi.org/10.1080/26895293.2024.2381141
3. Hernández-Álvarez, С., García-Oliva, F., Cruz-Ortega, R., Romero, M. F., Barajas, H. R, Piñero, D., & Alcaraz L. D. (2022). Squash root microbiome transplants and metagenomic inspection for in situ arid adaptations. Science of The Total Environment, 150136. https://doi.org/10.1016/j.scitotenv.2021.150136
4. Santin, M., & Castagna, A. (2024). The multifaceted responses of plants to visible and utraviolet radiation. Plants,13(5), 572. https://doi.org/10.3390/plants13050572
5. Serhiienko, O. V., Mohylna, O. M., Linnik, Z. P., & Lukianchykova, O. A. (2020). Metodychni pidkhody z vykorystannia identyfikovanoho za morfolohichnymy henamy liniinoho materialu u heterozysnii sele-ktsii kavuna [Methodological foundations for the use of linear material identified by morphological genes in heterotic selection of watermelon]. Vinnytsia : TOV «Tvory» [in Ukrainian].
6. Podolec, R., Demarsy, E., & Ulm, R. (2021). Perception and signaling of Ultraviolet-B radiation in plants. Annual Review of Plant Biology, 72, 793–822. https://doi.org/10.1146/annurev-arplant-050718-095946
7. Zhang, Ch., Gao, N., Na, X., Li, K., Pu, M., Sun, H., Song, Y., Tong, P., Fei, P., Li, J., Cheng, Z., He, X., Liu, M., Wang, X., Kardol, P. & Bi, Y. (2025). UV-B stress reshapes root-associated microbial communities and networks, driven by host plant resistance. Soil Biology and Biochemistry, 205, 109767. https://doi.org/10.1016/j.soilbio.2025.109767
8. Shi, Ch., & Li, H. (2021). How plants protect themselves from ultraviolet-B radiation stress. Plant Physiology, 187(3), 1096–1103. https://doi.org/10.1093/plphys/kiab245
9. Meyer, P., Van de Poel, B., & De Coninck, B. UV-B light and its application potential to reduce disease and pest incidence in crops. Horticulture Research, 2021. V. 8(194). https://doi.org/10.1038/s41438-021-00629-5
10. Kosenko, N. P., Knysh, V. I., Kokoiko, V. V., Shablia, O. S., & Bondarenko, K. O. (2024). Otsinka zrazkiv dyni za stiikistiu do UF-V oprominennia pry stvorenni streso-tolerantnykh sortiv dlia Pivdnia Ukrainy. [Evaluation of melon samples for resistance to UV-B radiation with the aim of creating stress-tolerant varieties for Southern Ukraine]. Agricultural innovations, 24, 183–188. https://doi.org/10.32848/agrar.innov.2024.24.26 [in Ukrainian].
11. Kosenko, N. P., Knysh, V. I., Kokoiko, V. V., & Shablia, O. S. (2025). Otsinka adaptyvnoi zdatnosti i stabilnosti zrazkiv kavuna pry stvorenni novykh stresotolerantnykh sortiv dlia Pivdnia Ukrainy. [Estimation of the adaptability and stability of watermelon samples in the development of new stress-tolerant varieties for South of Ukraine]. Agricultural innovations, 32, 272–276. https://doi.org/10.32848/agrar. innov.2025.32.38 [in Ukrainian].
12. Liebers, M., & Pfannschmidt, T. (2024). New horizons in light control of plant photomorphogenesis and development. Frontiers in Photobiology, 1346705. https://doi.org/10.3389/fphbi.2023.1346705
13. Samovol, O. P., Kondratenko, S. I., Serhiienko, O. V., & Khareba, O. V. Ovochevi paslonovi ta bashtanni vydy roslyn: tsytohenetychni osnovy selektsii [Vegetable Solanaceae and Cucurbitaceae species: cytogenetic foundations of breeding]. Kyiv : «Ahrarna nauka» [in Ukrainian].
14. Eberhart, S. A., & Rassel, W. A. (1966). Stability parametres forcomparing varieties. Crop Science, 6, 36–40.
15. Bondarenko, H. L. , & Yakovenko, K. I. (Eds.). Metodyka doslidnoi spravy v ovochivnytstvi i bashtannytstvi [Research Methods in Vegetable and Melon growing]. Kharkiv : «Osnova» [in Ukrainian].
16. Vozhehova, R. A. (Ed). (2014). Metodyka polovykh i laboratornykh doslidzhen na zroshuvanykh zemliakh [Methods of field and laboratory research on irrigated lands]. Kherson : «Hrin D.S.» [in Ukrainian].
17. Kolesnyk, I. I., & Palynchak, O. V. (2021). Stvorennia linii i hibrydiv harbuza z pidvyshchenym vmistom karotynu [Breeding pumpkin varieties and hybrids with a high carotene content]. Peredhirne ta hirske zemlerobstvo i tvarynnytstvo, 69(2), 58–75. https://doi.org/10.32636/01308521.2021-(69)-2-4 [in Ukrainian].
18. Melnyk, N. Yu. (2012). Rozshyrennia henetychnoho potentsialu harbuza metodom viddalenoi hibrydyzatsii [Increasing the genetic potential of pumpkins through outcrossing]. Tavriiskyi naukovyi visnyk, 79, 97–101 [in Ukrainian].
19. Lavrynenko, Yu. O., Vozhehova, R. A., Bazalii, V. V., Marchenko, T. Yu., & Ivaniv, M. O. (2020). Adaptyvna zdatnist hibrydiv kukurudzy za riznykh sposobiv polyvu ta volohozabezpechenosti u posushlyvomu Stepu Ukrainy [Adaptability of corn hybrids under different irrigation methods and moisture supply in the Arid Steppe of Ukraine]. Faktory eksperymentalnoi evoliutsii orhanizmiv, 27, 125–131. https://doi.org/10.7124/FEEO.v27.1314 [in Ukrainian].
This work is licensed under a Creative Commons Attribution 4.0 International License.
