Abd EL-Satar, M. A., Abd-EL-Halime, A. A. & Tamer, H. A. H. (2017). Response of seed yield and fatty acid compositions for some sunflower genotypes to plant spacing and nitrogen fertilization. Information Processing in Agriculture, 4, 241-252. https://doi.org/10.1016/j.inpa.2017.05.003
Ali, A. & Ullah, S. (2012). Effect of nitrogen on achene protein, oil, fatty acid profile, and yield of sunflower hybrids. Chilean Journal Agricultural Research, 72(4), 564-567.
Allaf, M. & Shokoohfar, A. (2016). Interaction deficit irrigation operations and nitrogen rates on the quantitative yield and oil percentage of sunflower Sanbura cultivar (Helianthus Annuus L.). Crop Physiology Journal, 7(28), 61-72. (in Persian)
Andrianasolo, F. A., Champolivier, L., Debaeke, P. & Maury, P. (2016). Source and sink indicators for determining nitrogen, plant density and genotype effects on oil and protein contents in sunflower achene. Field Crops Research, 192, 33-41. DOI: 10.1016/j.fcr.2016.04.010
Day, S. & Kolsarici, O. (2016). Interactive effects of different intra-row spacing and nitrogen levels on yield and yield components of confectionery sunflower (Helianthus annuus L.) genotype (Alaca) under Ankara conditions. International Journal of Development Research, 6(11): 10285-10290.
El-Gizawy, N. K. B. (2009). Effects of nitrogen rate and plant density on agronomic nitrogen efficiency and maize yield following wheat and fababean. American-Eurasian Journal of Agriculture and Environmental Science, 5(3), 378-386.
Gonzales, J., Mancuso, N. & Luduena, P. (2013). Sunflower yield and climatic variables. Helia, 36(58), 69-76. DOI: 10.2298/HEL1358069G
Hamzei, J., Nejafi, H. & Babaei, M. (2017). Effect of irrigation and nitrogen on agronomic parameters, yield, grain quality and agronomic nitrogen use efficiency of sunflower (Helianthus annuus L.). Iranian Journal of Field Crops Research, 14(4), 686-698. (in Persian)
Heidari, M. & Bagheri, A. (2016). Effect of different levels of nitrogen and zinc fertilizers on qualitative and quantitative characteristics of sunflower seeds. Journal of Crop Production and Processing, 5(18), 29-277. (in Persian)
Jami, M. Gh., Ghalavand, A., Modarres-Sanavy, S. M. A. & Mokhtassi-Bidgoli., A. (2017). Evaluation of agronomic charachteristics and seed quality of sunflower in response to different regimes of nitrogen, irrigation and zeolite. Journal of Crops Improvement, 9(4), 1011-1031. (in Persian)
Khodaei Joghan, A., Aghaalikhani, M., Gholamhoseini, M., Ataei, R., Sorooshzadeh, A. & Ghalavand, A. (2017). Effect of fertilizer treatments and irrigation regimes on seed yield and seed quality characteristics of sunflower. Crops Improvement, 20(1), 219-233. (in Persian)
Li, W. P., Shi, H. B., Zhu, K., Zheng, Q. & Xu, Z. (2017). The quality of sunflower seed oil changes in response to nitrogen fertilizer. Agronomy Journal, 109(6), 2499-2507. doi:10.2134/agronj2017.01.0046
López-Valdez, F., Fernández-Luqueño, F., Luna-Suárez, S. & Dendooven, L. (2011). Greenhouse gas emissions and plant characteristics from soil cultivated with sunflower (Helianthus annuus L.) and amended with organic or inorganic fertilizers. Science of the Total Environment, 412, 257-264.
Metcalf, L. C., Shmitz, A. A. & Pelka, J. R. (1966). Rapid preparation of methyl esters from lipid for gas chromatography analysis. Analytical Chemistry, 38, 514-515. https://doi.org/10.1021/ac60235a044
Mohammadi, K., Heidari, G., Javaheri, M., Rokhzadi, A., Karimi Nezhad, M. T., Sohrabi, Y. & Talebi, R. (2013). Fertilization affects the agronomic traits of high oleic sunflower hybrid in different tillage systems. Industrial Crops and Products, 44, 446-451. (in Persian)
Mojaddam, M. (2017). Effect of drought stress on physiological characteristics and seed yield of sunflower at different levels of nitrogen. Journal of Crop Production, 9(4), 121-136. (in Persian)
Moradi Telavat, M. R. & Siadat, S. A. (2012). Introduction and production of oilseed crops. Tehran, Iran: Education and Promotion of Agriculture Press. (in Persian)
Naseri, R., Kazemi, E., Mahmoodian, L., Mirzaei, A. & Soleymanifad, A. (2012). Study on effects of different plant density on seed yield, oil and protein content of four canola cultivars in western Iran. International Journal of Agriculture and Crop Sciences, 4(2), 70-78.
Nouriyani, H. (2015). Effect of different nitrogen levels on yield, yield components and some quality characteristics of two cultivars of rapeseed (Brassica napus L.). Journal of Crop Production and Processing, 5(16), 233-241. (in Persian)
Rastgo, B., Ebadie, A. & Parmoon, Gh. (2014). Investigation the effect of using nitrogen on yield and storage compositions of Safflower grain (Carthamus tinctorius L.). Crop Physiology Journal, 6(21), 85-102. (in Persian)
Rezvani Moghaddam, P. & Seyyedi, S. M. (2017). Evaluation of germination characteristics of sesame cultivars (Sesamum indicum L.) seeds as related to fatty acids composition. Iranian Journal of Seed Science and Technology, 5(2), 119-131. (in Persian)
Schultz, E., DeSutter, T., Sharma, L., Endres, G., Ashley, R., Honggang, Bu, Markell, S., Kraklau, A. & Franzen, D. (2018). Response of sunflower to nitrogen and phosphorus in North Dakota. Agronomy Journal, 110(2), 1-11. DOI: 10.2134/agronj2017.04.0222
Shakeri, E., Amini Dehaghi, M., Tabatabaei, S. A. & Modares Sanavi, S. M. A. (2013).Effect of nitrogen and biological fertilizers on seed yield and fatty acid composition of sesame cultivars under Yazd conditions. Iranian Journal of Field Crops Research, 10(4), 742-750. (in Persian)
Tohidi Moghadam, H., Zahedi, H. & Ghooshchi, F. (2011). Oil quality of canola cultivars in response to water stress and super absorbent polymer application. Pesquisa Agropecuária Tropical, 41(4), 579-586. DOI: 10.5216/pat.v41i4.13366
Wu, W. & Ma, B. (2015). Integrated nutrient management (INM) for sustaining crop productivity and reducing environmental impact: A review. Science of the Total Environment, 512, 415-427. DOI: 10.1016/j.scitotenv.2014.12.101
Zheljazkov, V. D., Vick, B. A., Baldwin, B. S., Buehring, N., Coker, C., Astatkie, T. & Johnson, B. (2011). Oil productivity and composition of sunflower as a function of hybrid and planting date. Industrial Crops and Products, 33(2), 537-543. https://doi.org/10.1016/j.indcrop.2010.11.004