- Abd Alrahmani B (2003) Effects of plant density on yield and agronomic traits of sunflower cv. armavirsky under dryland condition in Maragheh. Iranian Journal of Crop Science 5(3): 216-224. [in Persian with English abstract]
- Babaei Aghdam J, Abdi M, Seifzadeh S, Khiavi M )2009 (The effect of nitrogen fertilizer and bush density on seed yield and yield components of azargol sunflower cultivar in Takestan region, Iran. Agroecology Journal 4(14): 1-12. [in Persian with English abstract]
- Barros JFC, Carvalho MD, Basch G (2004) Response of sunflower (Helianthus annuus L.) to sowing date and plant density under Mediterranean conditions. European Journal of Agronomy 21(3): 347-356.
- Daneshian J, Jabbari H (2009) Effect of limited irrigation and plant density on characteristics and grain yield in a dwarf sunflower hybrid (CMS26 × R103) as second crop. Iranian Journal of Crop Science 10(4): 377-388. [in Persian with English abstract]
- Diepenbrock W, Long M, Feil B (2001) Yield and quality of sunflower as affected by row orientation, row spacing and plant density. Australian Journal of Agricultural Research 52(1): 29-36.
- Faraji A (2008) Effects of sowing date, seed rate and row spacing on agronomic traits and seed yield of canola cultivar RGS003 in Gonbad areas. Seed and Plant Improvement Journal 24(4): 623-642. [in Persian with English abstract]
- Gholinezhad E, Aeenehband A, Hasanzadeh Ghorttappeh A, Bernoosi I, Rezaei H (2009) Evaluation of effective drought stress on yield, yield components and harvest index of sunflower hybrid Iroflor at different levels of nitrogen and plant population in Urmieh climate conditions. Journal of Plant Production 16(3): 1-27. [in Persian with English abstract]
- Gholinezhad E, Tobeh A, Hasanzadeh Ghorttappeh A, Asghari A (2008) Effects of density and planting arrangement on yield and yield components of sunflower. Journal of New Agricultural Science 18(1): 87-99. [in Persian with English abstract]
- Gubbels GH, Dedio W (1988) Response of sunflower hybrids to row spacing. Canadian Journal of Plant Science 68(4): 1125-1127.
- Hasani Jabbarlo Kh, Roshdi M, Ghaffari M, Valiloo R (2008) Study of plant density and arrangement effect on yield and it,s components of two sunflower genotypes (Ksc43/128 and Lakumka) in Khoy region. Journal of Research in Crop Science 1(1): 99-107. [in Persian with English abstract]
- Holt NW, Zentner RP (1985) Effect of plant density and row spacing on agronomic performance and economic returns of non-oilseed sunflower in southeastern Saskatchewan. Canadian Journal of Plant Science 65(3): 501-509.
- Khalilvand behrouzyar E, Yarnia M, Darbandi S, Alyari H (2007) Effect of water deficit stress on some morphological characteristics of two sunflower (Helianthus annuus) cultivars in different plant densities. Journal of New Agricultural Science 8(3): 1-14. [in Persian with English abstract]
- Miller JF, Fick GN (1978) Influence of plant population on performance of sunflower hybrids. Canadian Journal of Plant Science 58(3): 597-600.
- Mojiri A, Arzani A (2003) Effect of nitrogen rate and plant density on yield and yield components of sunflower. Journal of Science and Technology of Agriculture and Natural Resources 7(2): 115-125. [in Persian with English abstract]
- Naderi A (1999) Effect of row spacing and plant population on agronomic traits, yield components of sunflower Record cultivar in Khuzestan. Journal of Seed and Plant, 15(2): 343- 353.
- Roshdi M, Rezadoost S, Khalili Mahalleh J, Haji Hasani Asl N (2009) Effects of plant density and defoliation during developmental stages on yield and yield components of sunflower. Journal of New Agricultural Science 5(2): 41-54. [in Persian with English abstract]
- Sedghi M, Seyed Sharifi R, Namvar A, Khandan-e-Bejandi T, Molaei P (2008) Responses of sunflower yield and grain filling period to plant density and weed interference. Journal of Biological Science 3(9): 1048-1053.
- Tahmasebi A (2008) Competition for environmental resources and yield compensation insunflower. Master Thesis, Islamic Azad University, Karaj Branch: Karaj, Iran. [In Persian with English abstract]
- Valadabadi SA, Moradi Aghdam A, Daneshian C, Zakerin H, Ghaffari H, Roshdi M (2008) The effect of plant density on phonology and yield traits of confectionary sunflower under water deficit conditions. Plant and Ecosystem 4(13): 90-106. [in Persian with English abstract]
- Zaffaroni E, Schneiter A (1991) Sunflower production as influenced by plant type, plant population and row arrangement. Agronomy Journal 83(1): 113-118.
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