Effect of different salt concentrations on the germination and early seedling growth of sorghum in laboratory conditions
DOI:
https://doi.org/10.61308/NXIY5096Keywords:
sorghum, soil salinity, salinity tolerance indices, biomass, UzbekistanAbstract
Salinity in soil is a major abiotic stress affecting crop productivity, especially in arid and semi-arid regions like Uzbekistan. This study investigates the salinity tolerance of two sorghum varieties, Toshkent oq donlisi and Massino, under controlled salinity gradients (0, 50, 100, 150, 200, and 250 mM NaCl). Morpho-physiological traits including plant height, leaf number, fresh and dry biomass, and chlorophyll content were recorded. Various stress tolerance indices were calculated to assess the resilience of both varieties. Results showed that Massino exhibited higher overall salinity tolerance, while Toshkent oq donlisi demonstrated moderate resilience at 100 mM salinity. These findings suggest varietal differences in salinity adaptation and provide valuable insights for crop selection in salt-affected areas.
References
Abuslima, E., Kanbar, A., Raorane, M. L., Eiche, E., Junker, B. H., Hause, B., Riemann, M. & Nick, P. (2022). Gain time to adapt: How sorghum acquires tolerance to salinity. Frontiers in Plant Science, 13, 1008172. DOI: https://doi.org/10.3389/fpls.2022.1008172
Acosta-Motos, J. R., Ortuño, M. F., Bernal-Vicente, A., Diaz-Vivancos, P., Sanchez-Blanco, M. J. & Hernandez, J. A. (2017). Plant responses to salt stress: Adaptive mechanisms. Agronomy, 7(1), 18. DOI: https://doi.org/10.3390/agronomy7010018
Ali, A. Y. A., Basuony, M. A. F., Abaido, R. C. M., Shaker, M. A. & Helal, N. M. (2014). Physiological parameters of salt tolerance during germination and seedling growth of Sorghum bicolor cultivars of the same subtropical origin. Saudi Journal of Biological Sciences, 21(4), 300 - 307. DOI: https://doi.org/10.1016/j.sjbs.2014.05.005
Amombo, E., Ashilenje, D., Hirich, A., Kouisni, L., Oukarroum, A. & Ghoulam, C. (2022). Exploring the correlation between salt tolerance and yield: Research advances and perspectives for salt-tolerant forage sorghum selection and genetic improvement. Planta, 255(3), 71. DOI: https://doi.org/10.1007/s00425-022-03847-w
Ashraf, M., Athar, H. R., Harris, P. J. C. & Kwon, T. R. (2008). Some prospective strategies for improving crop salt tolerance. Advances in Agronomy, 97, 45 - 110. DOI: https://doi.org/10.1016/S0065-2113(07)00002-8
Blum, A. (2004). Sorghum physiology. In H. T. Nguyen & A. Blum (Eds.), Physiology and Biotechnology Integration for Plant Breeding (pp. 141–223). New York: Marcel Dekker. DOI: https://doi.org/10.1201/9780203022030.ch4
Djumaniyazova, Y. & Latipova, R. (2020). Effect of various salinity concentrations on emergence of sorghum species. Actual Problems of Natural Sciences, 4(4), 45 - 50.
Djumaniyazova, Y., Kenny, C., Jonathan, G., Latipova, R. & Xajiyev, R. (2022). Response of wheat varieties to salt stress in early growth stage. Journal of Central Asian Plant Biology, 1(3), 34 - 40.
Flowers, T. J. & Colmer, T. D. (2008). Salinity tolerance in halophytes. New Phytologist, 179(4), 945 - 963. DOI: https://doi.org/10.1111/j.1469-8137.2008.02531.x
Food and Agriculture Organization of the United Nations. (2015). FAOSTAT statistical database. Rome, Italy: Food and Agriculture Organization of the United Nations.
Kafi, M., Nabati, J., Masoumi, A. & Mehrgerdi, M. Z. (2003). Effect of salinity on seed germination and seedling growth of three sorghum (Sorghum bicolor L.) cultivars. Pakistan Journal of Biological Sciences, 6(19), 1682 - 1684.
Kausar, A., Ashraf, M. Y., Ali, I., Niaz, M. & Abbass, Q. (2012). Evaluation of sorghum varieties/lines for salt tolerance using physiological indices as screening tool. Pakistan Journal of Botany, 44(1), 47 - 52.
Khasanov, B. & Sayidjakhon, T. (2023). Current challenges in salinity management in Uzbek agriculture. Central Asia Soil Science Journal, 4(2), 57 - 64.
Krishnamurthy, L., Serraj, R., Hash, C. T., Dakheel, A. J. & Reddy, B. V. S. (2007). Screening sorghum genotypes for salinity tolerant biomass production. Euphytica, 156(1–2), 15 - 24. DOI: https://doi.org/10.1007/s10681-006-9343-9
Munns, R. & Gilliham, M. (2015). Salinity tolerance of crops – What is the cost? New Phytologist, 208(3), 668 - 673. DOI: https://doi.org/10.1111/nph.13519
Netondo, G. W., Onyango, J. C. & Beck, E. (2004). Sorghum and salinity: II. Gas exchange and chlorophyll fluorescence of sorghum under salt stress. Crop Science, 44(3), 806 - 811. DOI: https://doi.org/10.2135/cropsci2004.8060
Parida, A. K. & Das, A. B. (2005). Salt tolerance and salinity effects on plants: A review. Ecotoxicology and Environmental Safety, 60(3), 324 - 349. DOI: https://doi.org/10.1016/j.ecoenv.2004.06.010
Roy, S. J., Negrão, S. & Tester, M. (2014). Salt resistant crop plants. Current Opinion in Biotechnology, 26, 115 - 124. DOI: https://doi.org/10.1016/j.copbio.2013.12.004
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Bulgarian Journal of Agricultural Science
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
