Document Type : Research Paper


1 M.Sc. Student, Agriculture Department, Faculty of Agriculture, University of Zabol, Zabol, Iran.

2 Associate Professor, Agriculture Department, Faculty of Agriculture, University of Zabol, Zabol, Iran.

3 Instructor, Department of Horticulture, Faculty of Agriculture, Velayat University, Iranshahr, Iran.


In order to investigate the effect of drought stress on some morphological traits, yield, yield components, and oil percentage of sesame genotypes, an experiment has been conducted in form of split plots in a randomized complete block design with three replications during 2018 at the Research Farm of Velayat University, Iranshahr. Drought stress factor includes normal irrigation (based on 100 mm evaporation from Class A evaporation pan) and drought stress (based on 200 mm evaporation from Class A evaporation pan) as the main factor, while sesame cultivars, including Dashtestan 2 and 5, Yelovait, Jiroft13, Iandraces of Dom Siah, and Darab1 have been the subfactor. Results show that drought stress significantly reduces plant height, number of branch and capsule per plant, number of seed per capsule and seed, biological yield, and oil yield and percentage. The increase in seed yield under normal irrigation conditions has been 28.67%, compared to drought stress conditions. Among all cultivars, Darab-1 has had the highest seed and oil yield in comparison with other cultivars under both irrigation conditions; therefore, this cultivar will be suitable for cultivation in Iranshahr. The correlation results show that seed yield has had a positive and significant correlation with the number of capsules per plant, number of seed per capsule, biological yield, and 1000-seed weight, with the highest correlation being related to seed and oil yield.


Ahmad, I., Khan, M.A., Qasim, M., Ahmad, R., & Saleem, M. (2013). Substrate salinity affects growth, yield and quality of Rosa hybrida L. Pakistan Journal of Science, 65(2), 191-196.
Ahmadi, M., & Bahrani, M.J. (2009). Effect of nitrogen fertilizer on yield and yield components of three sesame cultivars in Bushehr province. Journal of Science and Technological Agriculture and Natural Resources, 48(2), 123-131. (In Persian)
Blommers, J., De Lange-De Klerk, E., & Kuik, D.J. (2002). Evening primrose oil and fish oil for seven chronic Mastalgia: A randomized, double-blind, controlled trail. American Journal of Obstetrics Gynecology, 187(5), 1389-1394.
Dadivar M., & Khodshenas, M. A. (2007). Evaluation of water stress effect on canola (Brassica napus). Journal of Agricultural Science, 12(4), 845-853. (In Persian)
Darghahi, Y., Asghari, A., Rasoulzadeh, A., Aghaeifard, Kh., & Ahmadian, M. (2014).  Effect of water deficit stress on yield, water use efficiency and harvest index of sesame (Sesamum indicum L.) varieties. Journal of Applied Crop Breeding, 2(2), 171-183. (In Persian)
Eskandari, H., Zehtab Salmasi, S., & Ghasemi-Golozani, K. (2010). Evaluation of water use efficiency and grain yield of sesame cultivars as a second crop under different irrigation regimes. Journal of Agricultural Science and Sustainable Prodution, 20(1), 39-51. (In Persian)
Golestani, M., & Pakniyat, H. (2015). Evaluation of traits to drought stress in sesame (Sesame indicum L.) genotypes.  Asian Journal of Scientific Research, 5(9), 465-472.
Guo, Y.Y., Yu, H.Y., Kong, D.S., Yan, F., & Zhang, Y.J. (2016). Effects of drought stress on growth and chlorophyll fluorescence of Lycium ruthenicum Murr. seedlings. Photosynthetica, 54(4), 524-531.
Heidari, M., Goleg, M., Ghorbani, H., & Baradaran Firoozabadi, M. (2016). Effect of drought stress and foliar application of iron oxide nanoparticles on grain yield, ion content and photosynthetic pigments in sesame (Sesamum indicum L.). Iranian Journal of Filed Crop Science, 46(4), 619-628. (In Persian)
Jain, S., Yue-Lioang, R., Mei-wang, L.E., Ting-Xian, Y., Xiao-Wen, Y., & Hong- Ving, Z. (2010). Effect of drought stress on sesame growth and yield characteristics and comprehensive evaluation of drought tolerance. Chinese Journal of Oil Crops Sciences, 4, 42-48.
Javadi, S., Valizadeh, M., Imani, A., & Gharib Eshghi, A. (2013). Evaluation of relationship between grain yield and yield components in sesame genotypes. International Journal of Farming Allied Sciences, 2-16/549-552.
Jesús Pérez-Bolaños, J., & Guadalupe Salcedo-Mendoza, J. (2018). Yield component in Sesamum indicum L. (Pedaliaceae) cultivar in department of sucre (Colombia). Corpoica Ciencia Tecnologia Agropecuria, 19(2), 277-290.
Jonnalagada, S., & Mustad, V. A. (1996). Effect of Individual Fatty Acids on Chronic Diseases. Nutrition Today. 90-107.
Kathiresan, G., & Gnanamurthy, P. (2000). Studies on seed yield- contributing characters in sesame. Sesame and Sunflower Newsletter, 15, 29-32.
Kazemian, H. (2004). Introduction to Zeolites, Magical Minerals. First Edition. Nashr Behesht. Univ. of Mashhad. pp. 100. (In Persian)
Khajehpour, M.R. (2018). Principles and Foundations of Agriculture. Isfahan University Jihad Publications. Pp: 400. (In Persian)
Malakouti, S. (2000). The need for optimal fertilizer application to increase yield and improve the quality of sunflower. Agricultural Research, Education and Extension Organization, 12, 23-12. (In Persian)
Martainsdo, I., Horrobin, D.F., & Stenfors, C. (1998). Changes in dietary Fatty acids phospholipidic fatty acid composition in selected regions of rat brain. Prog Neuropsychopharmacology and Biological Psychiatry, 22(6), 1007-1021.
Mehrabi Zadeh, Z., & Ehsan Zade, P. (2012). A study on physiological attributes and grain yield of sesame cultivars under different soil moisture regimes. Journal of Crop Improvement, 13(2), 75-88. (In Persian)
Moghani Bashi, M., & Razmjoo, J. (2012). Effect of seed treatment with PEG and irrigation regimes on yield, yield component and yield oil of sesame (Sesame indicum L.). Iranian Journal of Field Crops Research, 10(1), 91-99. (In Persian)
Moghanibashi Najafabadi, M., Khazaie, H. R., Nezami, A., & Eshghizadeh, H. R. (2019). The effect of different irrigation levels on some physiological characteristic and grain yield of sesame genotypes. Crop Physiology, 11(41), 81-93. (In Persian)
Motakefi, M., Ghanbari, A., MoussAvi Nik, S. M., & Sirousmehr, A. R. (2019). Effect of organic growth stimulator on yield, yield components, oil percentage and some physiological indices of canola under drought stress conditions. Journal of Crops Improvement, 21(4), 367-377. (In Persian)
Najafi, H., & Safari, M. (2011). Study of drought stress on yield, yield component and oil of sesame cultivars. 11th National Seminar of Irrigation and Evaporation Reduction, PP: 35-36. (In Persian)
Padmavathi, N., & Thangavelu, S. (1996). Association of various yield components in sesame. Sesame and Safflower Newsletter, 11, 40-45.
Pak Niat, S. 2009. Monthly of Agriculture, Livestock and Industry. Issue 111. (In Persian)
Pouresmaiel, H., Saberi, M.H., & Fanaei, H. (2013). Evaluation of terminal drought stress tolerance of Sesamum indicum L. genotypes under the Sistan region conditions. International Journal of Science and Engineering Investigations, 2, 58-61.
Pusadkar, P.P., Kokiladevi, E., Bonde, S.V., & Mohite, N.R. (2015). Sesame (Sesamum indicum L.) importance and its high-quality seed oil: A Review. Trends in Biosciences, 8(15), 3900-3906.
Rahimi, M.M., & Mazaheri, D. (2004). The evaluation effect of Zn and Fe fertilizer on yield and component yield of two sunflower cultivars in Arsangan. Pajouhesh & Sazandegi, 17(3), 16-21. (In Persian)
Pajouhesh & Sazandegi No:64 pp: 16-21
Rezvani Moghaddam, P., Norozpoor, Gh., Nabati, J., & Mohammad Abadi, A.A. (2005). Effects of different irrigation intervals and plant density on morphological characteristics, grain and oil yields of sesame (Sesamum indicum). Iranian Journal of Field Crops Research, 3(1), 57-68. (In Persian)
Salamati, N., & Danaie, A. Kh. (2020). Evaluation of drought stress indices in surface deficit irrigation of new sesame cultivars. Journal of Water and Soil Conservation, 27(2), 69-87. (In Persian)
Samsam, Sh., Samsam, H., Samsam, M., & Samsam, F. (1992). Plants and Natural Medicines (medical content). Rooz Bahan Publications Tehran. 2, 30-128. (In Persian)
Sanchez-Reinoso, A.D., Ligarreto-Moreno, G.A., & Restrepo-Diaz, H. (2018). Physiological and biochemical responses of common bush bean to drought. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 46(2), 393-401.
Shakeri, E., Amini Dehaghi, M., Tabatabaei, S.A., & Modares Sanavi, S.A.M. (2012). Effect of chemical fertilizer and biofertilizer on seed yield, its components, oil and protein Percent in sesame varieties. Journal of Agricultural Science and Sustainable Production, 22(1), 71-85. (In Persian)
Shayesteh, J., Tabarsa, T., Asghari, J., & Resalati, H. (2010). Investigation of the amount of tannic acid in bark oak (Quercus castanifolia). Iranian Journal of Wood and Paper Industries, 1(1), 27-35. (In Persian)
Yakhin, O.I., Lubyanov, A.A., Yakhin, I.A., & Brown, P.H. (2017). Biostimulants in plant science: A global perspective. Fronti. Plant Sci, 7, 20-49.
Yhuda, S., Rabinovits, S., & David, I. (1998). Modulation of learning a neural membranes composition in the rat by essential acid preparation time. Neurochemical Research,  23(5),627-634.
Zhang, L., Li, Y., & Liu, J. (2016). Complete inactivation of photosynthetic activity during desiccation and rapid recovery by rehydration in the aerial microalga Trentepohlia jolithus. Plant Biology, 18, 1058-1061.