Morphophysiological Responses of Oat (Avena sativa L.) Genotypes from Pakistan’s Semiarid Regions to Salt Stress


  • Abbas Khan Department of Agronomy, Amir Muhammad Khan Campus Mardan, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar 25130, Pakistan
  • Muhammad Zahir Afridi Department of Agronomy, Amir Muhammad Khan Campus Mardan, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar 25130, Pakistan
  • Adil Zia Department of Agronomy, Amir Muhammad Khan Campus Mardan, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar 25130, Pakistan
  • Adil Mihoub Center for Scientific and Technical Research on Arid Regions, Biophysical Environment Station, Touggourt 30240, Algeria
  • Muhammad Farhan Saeed Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100-Vehari, Pakistan
  • Musawer Abbas Department of Agronomy, University of Agriculture Faisalabad 38040, Pakistan
  • Aftab Jamal Department of Soil and Environmental Sciences, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar 25130, Pakistan



NaCl, Osmotic stress, Germination capability, Chlorophyll photobleaching, Climate change, Food security, Salt resistance


Soil salinity is a major constraint to modern agriculture, with around 20% of the previously irrigated area becoming salt affected. Identifying suitable salt stress-tolerant genotypes based on their agronomic and physiological traits remains a herculean challenge in forage-type Oat (Avena sativa L.) breeding. The present study was designed to investigate the response of oat crop plants against the salt (NaCl) stress in Mardan, Pakistan. The experiment was carried out in complete randomized design (CRD) with two factors trail comprising of the performance of four different genotypes of oat (NARC oat, PARC oat, Green Gold and Islamabad oat) in response to four levels of saline stress (0, 25, 50 and 75 mmol L-1 NaCl). Plant growth and physiological parameters including germination (G, %); fresh shoot weight (FSW, g); fresh root weight (FRW, g); chlorophyll-a, chlorophyll-b, total chlorophyll, and total carotenoids were analyzed for identifying salt tolerance. Germination (%) of oat genotypes was negatively affected by higher salt stress. Mean values showed that maximum germination (57.5%) was recorded for control while minimum germination (48.75%) was recorded for 25 mmol L-1 NaCl and that maximum germination (58%) was recorded for PARC oat. The root and shoot fresh weight of all genotypes declined with increasing salt stress, while NARC and Green Gold oat showed considerably higher values than the other genotypes. Although chlorophyll and carotenoids were found to be negatively affected by increasing salt concentrations, NARC and Green Gold oat genotypes performed considerably better at 75 mmol L-1 NaCl when compared to the other genotypes. Based on the mean shoot dry weight ratio ± one standard error, the four Oat genotypes were categorized as salt-tolerant (Green Gold), moderately tolerant (PARC and NARC), and salt-sensitive (Islamabad). The more salt-tolerant genotype (Green Gold) demonstrated relatively high salinity tolerance and may be useful for developing high-yielding oat hybrids in future breeding programs under salt stress conditions.


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Ahmad, I., Munsif, F., Mihoub, A., Jamal, A., Saeed, M. F., Babar, S., Fawad, M., & Zia, A. (2022). Beneficial effect of melatonin on growth and chlorophyll content in wheat (Triticum aestivum L.) Grown Under Salt Stress Conditions. Gesunde Pflanzen, 74, 997-1009.

Alemayehu, M. (1997). Conservation based forage development for Ethiopia. Self Help Development International and Institute for Sustainable Development. Addis Ababa, Ethiopia: Berhanena Selam Printing Press.

Cha-Um, S., & Kirdmanee, C. (2009). Effect of salt stress on proline accumulation, photosynthetic ability and growth characters in two maize cultivars. Pakistan Journal of Botany, 41(1), 87-98.

Choudhary, A., Kaur, N., Sharma, A., & Kumar, A. (2021). Evaluation and screening of elite wheat germplasm for salinity stress at the seedling phase. Physiologia Plantarum, 173(4), 2207-2215.

Damon, P. M., Osborne, L. D., & Rengel, Z. (2007). Canola genotypes differ in potassium efficiency during vegetative growth. Euphytica, 156, 387-397.

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.

EL Sabagh, A., Hossain, A., Barutçular, C., Iqbal, M. A., Islam, M. S., Fahad, S., Sytar, O., Çiğ, F., Meena, R. S., & Erman, M. (2020). Consequences of salinity stress on the quality of crops and its mitigation strategies for sustainable crop production: an outlook of arid and semi-arid regions. In S. Fahad, M. Hasanuzzaman, M. Alam, H. Ullah, M. Saeed, I. A. Khan & M. Adnan (Eds.), Environment, Climate, Plant and Vegetation Growth (pp. 503-533) Cham, Switzerland: Springer.

FAO. (2008). Plant Nutrition Management Service. Land and Water Development Division, Food and Agriculture Organization of the United Nations Rome.

FAO. (2014). Extent of salt affected soils. Rome, Italy: FAO. Retrieved from http://wwwfaoorg/soils-portal/soil-management/management-of-some-problem-soils/salt-affected-soils/moreinformation-on-salt-affected-soils/en/

Fatima, A., Hussain, S., Hussain, S., Ali, B., Ashraf, U., Zulfiqar, U., Aslam, Z., Al-Robai, S. A., Alzahrani, F. O., Hano, C., & El-Esawi, M. A. (2021). Differential morphophysiological, biochemical, and molecular responses of maize hybrids to salinity and alkalinity stresses. Agronomy, 11(6), 1150.

Hussain, A., Khan, S., Mufti, M. U., & Bakhsh, A. (2002). Introduction and use of oats cultivars in Pakistan. Proceedings of 5th TAPAFON, 159-166.

Iqbal, S., Hussain, S., Qayyaum, M. A., & Ashraf, M. (2020). The response of maize physiology under salinity stress and its coping strategies. In A. Hossain (Eds.), Plant Stress Physiology, 1-25.

Iqbal, W., Afridi, M. Z., Jamal, A., Mihoub, A., Saeed, M. F., Székely, Á., Zia, A., Khan, M. A, Jarma-Orozco, A., & Pompelli, M. F. (2022). Canola seed priming and its effect on gas exchange, chlorophyll photobleaching, and enzymatic activities in response to salt stress. Sustainability, 14(15), 9377.

Islam, M. M., Al Mamun, S. M. A., & Islam, S. M. T. (2022). Impact of Different Levels of NaCl Induced Salinity on Seed Germination and Plant Growth of Fodder Oats (Avena sativa L.). Journal of the Bangladesh Agricultural University, 20(1), 40-48.

Jacob, P. T., Siddiqui, S. A., & Rathore, M. S. (2020). Seed germination, seedling growth and seedling development associated physiochemical changes in Salicornia brachiata (Roxb.) under salinity and osmotic stress. Aquatic Botany, 166, 103272.

James, R. A., Blake, C., Byrt, C. S., & Munns, R. (2011). Major genes for Na+ exclusion, Nax1 and Nax2 (wheat HKT1; 4 and HKT1; 5), decrease Na+ accumulation in bread wheat leaves under saline and waterlogged conditions. Journal of Experimental Botany, 62(8), 2939-2947.

Janmohammadi, M., Dezfuli, P. M., & Sharifzadeh, F. (2008). Seed invigoration techniques to improve germination and early growth of inbred line of maize under salinity and drought stress. General and Applied Plant Physiology, 34(3-4), 215-226.

Javed, S. A., Arif, M. S., Shahzad, S. M., Ashraf, M., Kausar, R., Farooq, T. H., Hussain, M. I., & Shakoor, A. (2021). Can different salt formulations revert the depressing effect of salinity on maize by modulating plant biochemical attributes and activating stress regulators through improved N Supply? Sustainability, 13(14), 8022.

Khajeh-Hosseini, M., Powell, A. A., & Bingham, I. J. (2003). The interaction between salinity stress and seed vigour during germination of soyabean seeds. Seed Science and Technology, 31(3), 715-725.

Lichtenthaler, H. K. (1987). Chlorophylls and caroteniods: Pigments of photosynthetic biomembranes. Methods in Enzymology, 148, 350-382.

Luo, G. N., Zhao, G. Q., & Liu, H. (2012). The comprehensive evaluation of salt tolerance for 24 oat cultivars. Grassl. Turf, 32, 34-38.

Masuda, M. S., Azad, M. A. K., Hasanuzzaman, M., & Arifuzzaman, M. (2021). Evaluation of salt tolerance in maize (Zea mays L.) at seedling stage through morphological characters and salt tolerance index. Plant Physiology Reports, 26, 419-427.

Mbarki, S., Skalicky, M., Vachova, P., Hajihashemi, S., Jouini, L., Zivcak, M., Tlustos, P., Brestic, M., Hejnak, V., & Khelil, A. Z. (2020). Comparing salt tolerance at seedling and germination stages in local populations of Medicago ciliaris L. to Medicago intertexta L. and Medicago scutellata L. Plants, 9(4), 526.

Meloni, D. A., Oliva, M. A., Ruiz, H. A., & Martinez, C. A. (2001). Contribution of proline and inorganic solutes to osmotic adjustment in cotton under salt stress. Journal of Plant Nutrition, 24(3), 599-612.

Rahnama, A., James, R. A., Poustini, K., & Munns, R. (2010). Stomatal conductance as a screen for osmotic stress tolerance in durum wheat growing in saline soil. Functional Plant Biology, 37(3), 255-263.

Sarwar, G., Ashraf, M. Y., & Naeem, M. (2004). Genetic variability of some primitive bread wheat varieties to salt tolerance. Pakistan Journal of Botany, 35(5), 771-778.

Shrivastava, P., & Kumar, R. (2015). Soil salinity: A serious environmental issue and plant growth promoting bacteria as one of the tools for its alleviation. Saudi Journal of Biological Sciences, 22(2), 123-131.

Tabassum, R., Tahjib-Ul-Arif, M., Hasanuzzaman, M., Sohag, A. A. M., Islam, M. S., Shafi, S. S. H., Islam, M. M., & Hassan, L. (2021). Screening salt-tolerant rice at the seedling and reproductive stages: An effective and reliable approach. Environmental and Experimental Botany, 192, 104629.

Wang, B., & Song, F. B. (2006). Physiological responses and adaptive capacity of oats to saline-alkali stress. Ecology and Environment, 15, 625-629.

Wang, H., Liang, L., Liu, S., An, T., Fang, Y., Xu, B., Zhang, S., Deng, X., Palta, J. A., Siddique, K. H. M., & Chen, Y. (2020). Maize genotypes with deep root systems tolerate salt stress better than those with shallow root systems during early growth. Journal of Agronomy and Crop Science, 206(6), 711-721.

Wu, J., Liu, J., Li, Q., & Fu, Z. (2009). Effect of salt stress on oat seed germination and seeding membrane permeability. Journal of Triticeae Crops, 29(2), 341-345.

Zaman, M., Shahid, S. A., Heng, L., Shahid, S. A., Zaman, M., & Heng, L. (2018). Soil salinity: Historical perspectives and a world overview of the problem. Guideline for salinity assessment, mitigation and adaptation using nuclear and related techniques, 43-53.

Zhang, H., Murzello, C., Sun, Y., Kim, M.-S., Xie, X., Jeter, R. M., Zak, J. C., Dowd, S. E., & Paré, P. W. (2010). Choline and osmotic-stress tolerance induced in Arabidopsis by the soil microbe Bacillus subtilis (GB03). Molecular Plant Microbe Interactions, 23(8), 1097-1104.

Zhang, M., Fang, Y., Ji, Y., Jiang, Z., & Wang, L. (2013). Effects of salt stress on ion content, antioxidant enzymes and protein profile in different tissues of Broussonetia papyrifera. South African Journal of Botany, 85, 1-9.

Zia, A., Munsif, F., Jamal, A., Mihoub, A., Saeed, M. F., Fawad, M., Ahmad, I., & Ali, A. (2022). Morpho-Physiological Attributes of Different Maize (Zea mays L.) Genotypes Under Varying Salt Stress Conditions. Gesunde Pflanzen, 74, 661-673.



How to Cite

Khan, A., Afridi, M. Z., Zia, A., Mihoub, A., Saeed, M. F., Abbas, M., & Jamal, A. (2023). Morphophysiological Responses of Oat (Avena sativa L.) Genotypes from Pakistan’s Semiarid Regions to Salt Stress. Journal of Scientific Agriculture, 7, 44–50.