Exploring the tolerance of Iraqi wheat varieties: Evaluating seed germination and early growth of six Iraqi wheat varieties under salinity stress


  • Rawad Khalaf Hameed Department of Biology, College of Science, Tikrit University, Iraq
  • Ayman Adwan Abd Department of Biology, College of Science, Tikrit University, Iraq
  • Noor Maath Ahmed Department of Biology, College of Science, Tikrit University, Iraq




Wheat varieties, Salinity tolerance, Shoot length, Fresh weight, Dry weight


Abiotic stresses reduce the production of crops by 50% which significantly affects the food security globally. Plant growth and development are affected by salinity stress, Salt stress affects about 19.5% of irrigated lands and 2.1% of drylands which is expected to rise in the future. Wheat Triticum aestivum is classified as one of the most significant crop globally besides maize and rice which significantly contribute as a part of daily calories and proteins and it ranked first for its values in domestication and staple food. The purpose of the study was to assess how well various wheat genotypes tolerated salinity under various salinity concentrations, and the varieties were (Iba99, Hadbaa, Hashmiaa, Al-Rasheed, Sham, and Rabiaa). Different NaCl concentrations were used (50, 100, 150, and 200 mM) and Measurements were made on germination %, shoot length, fresh weight, and dried weight. Iba99, Sham and Rabiaa were the best varieties where the seed germination was 100% and other varieties differed slightly (Hadbaa 40, Hashmiaa 80 and Al-Rasheed 60%). The growth parameters results demonstrated that all the shoot lengths and fresh and dry weights were affected by the salinity stress and the correlation was inverse. It was decreased with the NaCl concentration increase. Rabiaa and Iba99 were the more tolerant and demonstrated high growth under salinity whereas Sham showed lowest growth under salinity.


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Abari, A. K., Nasr, M. H., Hojjati, M., & Bayat, D. (2011). Salt effects on seed germination and seedling emergence of two Acacia species. African Journal of Plant Science, 5(1), 52-56. https://doi.org/10.5897/AJPS.9000213

Al-Hachami, I. S. A., & Frhan, M. E. (2018). A compative study of technical efficiency of certifed wheat cultivars (ADNA 99 and IPA 99) in Iraq during the season 2014-2015.(Wasit governorate as a case study). Iraqi Journal of Agricultural Sciences, 48(6), 1750-1764.

Alkifaei, M. H. A.-K., & Al-Tahir, F. M. M. (2018). Response of Wheat Varieties Newly Introduced to Different Planting Dates. Jornal of Al-Muthanna for Agricultural Sciences, 6(2), 67-74.

Asaadi, A. M. (2009). Investigation of salinity stress on seed germination of Trigonella foenum-graecum. Research Journal of Biological Sciences, 4(11), 1152-1155.

Ashraf, M., Shahzad, S. M., Imtiaz, M., & Rizwan, M. S. (2018). Salinity effects on nitrogen metabolism in plants–focusing on the activities of nitrogen metabolizing enzymes: A review. Journal of Plant Nutrition, 41(8), 1065-1081. https://doi.org/10.1080/01904167.2018.1431670

Bakhshandeh, E., Abdellaoui, R., Boughalleb, F., & Jamali, M. (2022). Quantification of green bean germination response to simultaneous salt and temperature stress: a modeling approach. Acta Physiologiae Plantarum, 44, 134. https://doi.org/10.1007/s11738-022-03461-z

Dai, X., Huo, Z., & Wang, H. (2011). Simulation for response of crop yield to soil moisture and salinity with artificial neural network. Field Crops Research, 121(3), 441-449. https://doi.org/10.1016/j.fcr.2011.01.016

Dehnavi, A. R., Zahedi, M., Ludwiczak, A., Perez, S. C., & Piernik, A. (2020). Effect of salinity on seed germination and seedling development of sorghum (Sorghum bicolor (L.) Moench) genotypes. Agronomy, 10(6), 859. https://doi.org/10.3390/agronomy10060859

EL Sabagh, A., Islam, M. S., Skalicky, M., Raza, M. A., Singh, K., Hossain, M. A., Hossain, A., Mahboob, W., Iqbal, M. A., Ratnasekera, D., Singhal, R. K., Ahmed, S., Kumari, A., Wasaya, A., Sytar, O., Brestic, M., Cig, F., Erman, M., Rahman, M. H. U.,...Arshad, A. (2021). Salinity stress in wheat (Triticum aestivum L.) in the changing climate: Adaptation and management strategies. Frontiers in Agronomy, 3, 661932. https://doi.org/10.3389/fagro.2021.661932

Feghhenabi, F., Hadi, H., Khodaverdiloo, H., & van Genuchten, M. T. (2020). Seed priming alleviated salinity stress during germination and emergence of wheat (Triticum aestivum L.). Agricultural Water Management, 231, 106022. https://doi.org/10.1016/j.agwat.2020.106022

Giovanis, E., & Ozdamar, O. (2021). The transboundary effects of climate change and global adaptation: The case of the Euphrates-Tigris water basin in Turkey and Iraq. ERF Working Papers Series.

Iqbal, M. A., Rahim, J., Naeem, W., Hassan, S., Khattab, Y., & El-Sabagh, A. (2021). Rainfed winter wheat (Triticum aestivum L.) cultivars respond differently to integrated fertilization in Pakistan. Fresenius Environmental Bulletin, 30(4), 3115-3121.

Jamil, A., Riaz, S., Ashraf, M., & Foolad, M. R. (2011). Gene expression profiling of plants under salt stress. Critical Reviews in Plant Sciences, 30(5), 435-458. https://doi.org/10.1080/07352689.2011.605739

Jamil, M., Lee, D. B., Jung, K. Y., Ashraf, M., Lee, S. C., & Rha, E. S. (2006). Effect of salt (NaCl) stress on germination and early seedling growth of four vegetables species. Journal of Central European Agriculture, 7(2), 273-282.

Koyro, H.-W. (2002). Ultrastructural effects of salinity in higher plants. In A. Läuchli & U. Lüttge (Eds.), Salinity: Environment-Plants-Molecules (pp. 139-157) Dordrecht, Netherlands: Springer. https://doi.org/10.1007/0-306-48155-3_7

Kumari, A., & Kaur, R. (2020). A review on morpho-physiological traits of plants under phthalates stress and insights into their uptake and translocation. Plant Growth Regulation, 91, 327-347. https://doi.org/10.1007/s10725-020-00625-0

Mahmud, R., Abdulhamed, Z. A., & Alogaidi, M. A. M. (2022). Effect of Planting Dates on Growth Characteristics and Yield of Six Bread Wheat Cultivars. Iraqi Journal of Desert Studies, 12(1), 69-78. https://doi.org/10.36531/ijds.2022.174582

Majeed, D. M. (2018). Detection of TaST salt tolerance gene in three selected wheat genotypes for salinity stress under salinity conditions. Iraqi Journal of Agricultural Sciences, 49(3), 487-492. https://doi.org/10.36103/ijas.v49i3.120

Mohammed, Z. M., & Hassan, W. H. (2022). Climate change and the projection of future temperature and precipitation in southern Iraq using a LARS-WG model. Modeling Earth Systems and Environment, 8, 4205-4218. https://doi.org/10.1007/s40808-022-01358-x

Naik, V. V., & Karadge, B. A. (2017). Effect of NaCl and Na2SO4 salinities and light conditions on seed germination of purslane (Portulaca oleracea Linn.). Journal of Plant Stress Physiology, 3, 1-4. https://doi.org/10.19071/jpsp.2017.v3.3142

Outoukarte, I., El Keroumi, A., Dihazi, A., & Naamani, K. (2019). Use of morpho-physiological parameters and biochemical markers to select drought tolerant genotypes of durum wheat. Journal of Plant Stress Physiology, 5, 1-7. https://doi.org/10.25081/jpsp.2019.v5.3700

Pour-Aboughadareh, A., Mehrvar, M. R., Sanjani, S., Amini, A., Nikkhah-Chamanabad, H., & Asadi, A. (2021). Effects of salinity stress on seedling biomass, physiochemical properties, and grain yield in different breeding wheat genotypes. Acta Physiologiae Plantarum, 43, 98. https://doi.org/10.1007/s11738-021-03265-7

Rasheed, R. (2009). Salinity and extreme temperature effects on sprouting buds of sugarcane (Saccharum officinarum L.): some histological and biochemical studies. University of Agriculture, Faisalabad, Pakistan.

Saddiq, M. S., Iqbal, S., Hafeez, M. B., Ibrahim, A. M. H., Raza, A., Fatima, E. M., Baloch, H., Jahanzaib, Woodrow, P., & Ciarmiello, L. F. (2021). Effect of salinity stress on physiological changes in winter and spring wheat. Agronomy, 11(6), 1193. https://doi.org/10.3390/agronomy11061193

Seleiman, M. F., Aslam, M. T., Alhammad, B. A., Hassan, M. U., Maqbool, R., Chattha, M. U., Khan, I., Gitari, H. I., Uslu, O. S., Roy, R., & Battaglia, M. L. (2022). Salinity stress in wheat: effects, mechanisms and management strategies. Phyton-International Journal of Experimental Botany, 91(4), 667-694. https://doi.org/10.32604/phyton.2022.017365

Smolikova, G., Leonova, T., Vashurina, N., Frolov, A., & Medvedev, S. (2020). Desiccation tolerance as the basis of long-term seed viability. International Journal of Molecular Sciences, 22(1), 101. https://doi.org/10.3390/ijms22010101

Soni, S., Kumar, A., Sehrawat, N., Kumar, A., Kumar, N., Lata, C., & Mann, A. (2021). Effect of saline irrigation on plant water traits, photosynthesis and ionic balance in durum wheat genotypes. Saudi Journal of Biological Sciences, 28(4), 2510-2517. https://doi.org/10.1016/j.sjbs.2021.01.052

Wahid, A., Farooq, M., Basra, S. M. A., Rasul, E., & Siddique, K. H. M. (2016). Germination of seeds and propagules under salt stress. In M. Pessarakli (Eds.), Handbook of Plant and Crop Stress (3rd ed., pp. 321-337) Boca Raton, Florida: CRC Press. https://doi.org/10.1201/b10329

Zeeshan, M., Lu, M., Sehar, S., Holford, P., & Wu, F. (2020). Comparison of biochemical, anatomical, morphological, and physiological responses to salinity stress in wheat and barley genotypes deferring in salinity tolerance. Agronomy, 10(1), 127. https://doi.org/10.3390/agronomy10010127

Zhu, G., An, L., Jiao, X., Chen, X., Zhou, G., & McLaughlin, N. (2019). Effects of gibberellic acid on water uptake and germination of sweet sorghum seeds under salinity stress. Chilean Journal of Agricultural Research, 79(3), 415-424. https://doi.org/10.4067/S0718-58392019000300415



How to Cite

Hameed, R. K., A. A. Abd, and N. M. Ahmed. “Exploring the Tolerance of Iraqi Wheat Varieties: Evaluating Seed Germination and Early Growth of Six Iraqi Wheat Varieties under Salinity Stress”. Journal of Plant Stress Physiology, vol. 9, Oct. 2023, pp. 36-39, doi:10.25081/jpsp.2023.v9.8606.