Evaluation of salinity tolerance in tomato using morphological and nutritional traits
Abstract
Objective: Research into different levels of salt tolerance in tomato varieties is important for agricultural production. In this study, the salt tolerance of cultivated, wild, and their hybrid tomato genotypes was investigated under hydroponic conditions.
Material and Methods: The plant material included two commercial cultivars, ten wild species (Solanum pimpinellifolium and S. habrochaites) and their hybrids. The plants were grown for 30 days under control (1.0 dS m⁻¹) and saline (10.0 dS m⁻¹) conditions. Principal component and correlation analyses were applied to determine their salt tolerance.
Results: Salt stress affected the fresh and dry weights of shoots and roots, especially in cultivars. Under salt stress conditions, genotype SP-4 had the tallest plants and the best chlorophyll index. The highest root volume was observed in SC2121xSP-2 hybrids. Instead of leaf K/Na ratio, genotype SP-1 had the highest value (0.57), while the lowest values were found in cultivars. Under salt stress, the highest leaf Ca content was found in genotype SH-4 (2.17%) and the lowest in genotype H2274 (0.70%). In terms of root Ca content, genotype SH-2 had the highest value under salt stress (1.79%). In stressed plants, Na levels were higher in cultivated plants and lower in wild and hybrid combinations. In contrast, Ca and K levels were higher in wild lines and hybrid combinations and lower in cultivated plants.
Keywords
Nutrient contents, principle component analysis, salt stress, wild tomato
Supporting Institution
This study was supported by Kırşehir Ahi Evran University Project Unit BAP with the code ZRT.A4.20.010
Project Number
This study was supported by Kırşehir Ahi Evran University Project Unit BAP with the code ZRT.A4.20.010.
Thanks
We would like to thank the JISTUAM-Geothermal Advanced Greenhouse Technologies and Production Techniques Research and Application Center, where this study was conducted.
References
- Aboutalebi, A & F.A. Jahromi, 2013. Effect of NaCl on vegetative characters and Cl, Na and K concentration of tomato (Lycopersicon esculentum) plant. Annals of Biological Research, 4 (8): 178-182. http://scholarsresearchlibrary.com/ABR-vol4-iss8/ABR-2013-4-8-178-182.pdf
- Afzall, M., A. Ahmad, A.A. Alderfasi, A. Ghoneim & M. Sagib, 2014. Physiological tolerance and cation accumulation of different genotypes of Capsicum annum under varying salinity stress. Proceedings of the International Academy of Ecology and Environmental Sciences, 4 (1): 39-49. http://www.iaees.org/publications/journals/piaees/onlineversion.asp
- Akbarimoghaddam, H., M. Galavi, A. Ghanbari & N. Panjehkeh, 2011. Salinity effects on seed germination and seedling growth of bread wheat cultivars. Trakia Journal of Sciences, 9 (1): 43-50. ISSN 1313-7050
- Alam, S., M. Tester, G. Fiene & M. Mousa, 2021. Early growth stage characterization and the biochemical responses for salinity stress in tomato. Plants, 10 (4): 712. https://doi.org/10.3390/plants10040712
- Alharby, H., 2021. Using some growth stimuli, a comparative study of salt tolerance in two tomatoes cultivars and a related wild line with special reference to superoxide dismutases and related micronutrients. Saudi Journal of Biological Sciences, 28 (11): 6133-6144. https://doi.org/10.1016/j.sjbs.2021.06.062
- Ashraf, M & L. Wu, 1994. Breeding for salinity tolerance in plants. Critical Reviews in Plant Sciences, 13 (1): 17-42. https://doi.org/10.1080/07352689409701906
- Aydın, A & H. Başak, 2023. Farklı melez kombinasyonları ile elde edilmiş su kabağı (Lagenaria siceraria) melezlerinin su kültürü koşullarında tuz stresine morfolojik ve fizyolojik olarak tolerans düzeylerinin belirlenmesi. Ege Univ. Ziraat Fak. Derg., 60 (4): 665-678. https://doi.org/10.20289/zfdergi.1284786 (in Turkish)
- Aydın, A. & H. Yetişir, 2023. Rootstock effect of auto-and allotetraploid citron (Citrullus lanatus var. citroides) on hydroponically grown cucumber under salt stress. Gesunde Pflanzen, 75 (4): 1193-1206. https://doi.org/10.1007/s10343-022-00782-4
- Aydın, A., 2024a. Effects of grafting with wild tomato (Solanum pimpinellifolium and Solanum habrochaites) rootstocks on growth and leaf mineral accumulation in salt stress. Horticulture, Environment, and Biotechnology, 65 (5): 785-801. https://doi.org/10.1007/s13580-024-00607-5
- Aydın, A., 2024b. The growth, leaf antioxidant enzymes and amino acid content of tomato as affected by grafting on wild tomato rootstocks (S. pimpinellifolium and S. habrochaites) under salt stress. Scientia Horticulturae, 325: 112679. https://doi.org/10.1016/j.scienta.2023.112679