Document Type : Original Article


Department of Agriculturale Sciences and Food Industries, Science and Research Branch, Islamic Azad University, Tehran, Iran



Field experiments were conducted during 2017 and 2018 to evaluate the efficacy of herbicides NICOSULFURON and EPTC alone or in combination with seed priming on weed control and corn yield. NICOSULFURON (80 g a.i. ha‒1) was applied at four- to six-leaf stage of corn as post-emergence and EPTC (4920 g a.i. ha‒1) applied as pre-plant incorporation (PPI). Among the herbicide treatments, the lowest total weed biomass was observed in plots treated with prime + EPTC PPI at ½ recommended dose followed by one hand weeding and NICOSULFURON applied at label recommended dose or 33% reduced dose integrated with seed priming, while the least performance was observed in plots treated with EPTC alone. Weed biomass reduction by seed priming alone was 32% (average of two years) compared with control. The highest grain and biological yield were observed in weed free plots and hand hoeing three times, followed by prime + EPTC followed one hand-hoeing and NICOSULFURON at recommended rate and at 33% reduced dose integrated with seed priming. The present study demonstrated that seed priming can improve the weed competitiveness of corn.


Abasdokht, H, Makarian, H, Gholami, A, Rahimi, M. (2012). The study of integrated weed management (IWM), emphasizing the effect of seed priming on yield and yield components of corn (Zea mays L.). Iran. J. Weed Sci., 4:63-76.
Abouziena, HF, El-Karmany, MF, Singh, M, Sharma, SD. (2007). Effect of Nitrogen Rates and Weed Control Treatments on Corn Yield and Associated Weeds in Sandy Soils. Weed Technol., 21:1049–1053.
Ahmadi, A, Sio-Semardeh, A, Poustini, K, Esmailpour Jahromi, M. (2007). Influence of osmo and hydro priming on seed germination and seedling growth in wheat (Triticum aestivum L.) cultivars under different moisture and temperature conditions. Pakistan J. Biol. Sci., 10:4043-4049.
AOSA (1983). Seed Vigor Hand Testing Book, Contribution No. 32 to the Handbook on Seed Testing. Association of Official Seed Analysts, Springfield, IL, USA.
Baghestani, MA, Zand, E, Soufizadeh, S, Eskandari, A, Pour Azar, R, Veysi, M, Nassirzadeh, N. (2007). Efficacy evaluation of some dual purpose herbicides to control weeds in corn (Zea mays L.). Crop. Prot., 26:936–942.
Bijanzadeh, E, Hossein, G. (2006). Effect of separate and combined treatments of herbicides on weed control and corn (Zea mays L.) yield. Weed Technol., 20:40-645.
Blackshaw, RE, O’Donovan, JT, Harker, KN, Clayton, GW, Stougaard, RN. (2006). Reduced herbicide doses in field crops: a review. Weed Bio. Manag., 6:10-17.
Chikoye, D, Schulz, S, Ekeleme, F. (2004). Evaluation of integrated weed management practices for corn in the northern Guinea savanna of Nigeria. Crop Prot., 23:895–900.
Clark, LJ, Whalley, WR, EllisJones, J, Den, K, Rowse, HR, Finch-Savage, WE, Gatsai, T, Jasi, L, Kaseke, NE, Murungu, FS, Riches, CR, Chiduza, C. (2001). On farm seed priming in corn: a physiological evaluation, pp. 268273. Seventh Eastern and Southern Africa Regional Corn Conference, 11-15 February.
Dalley, CD, Bernards, ML, Kells, JJ. (2006). Effect of weed removal timing and row spacing on soil moisture in corn (Zea mays L.). Weed Technol., 20:399–409.
Ellis, RA, Roberts, EH. (1981). The quantification of ageing and survival in orthodox seeds. Seed Sci. Technol., 9:373-409.
FAOSTAT (2012). Agriculture Data.
Farooq, M, Basra, SMA, Ahmad, N (2007). Improving the performance of transplanted rice by seed priming. Plant Growth Regul., 51:129-137.
Ghiyasi, M, Abbasi, AM, Tajbakhsh, A, Sallehzade, R. (2008). Effect of osmopriming with polyethylene glycol 8000 (PEG8000) on germination and seedling growth of wheat (Triticum aestivum L.) seeds under salt stress. Res. J. Biol. Sci., 3:1249-1251.
Hadizadeh, MH, Alimoradi, L, Fereidoonpour, M. (2006). Evaluation of sulfonylurea herbicides in grain corn (Zea mays L.). In: Proceedings First Iranian Weed Science Congress. Tehr. Iran, pp. 519–523.
Harris, D, Tripathi, RS, Joshi, A. (2002). On-farm seed priming to improve crop establishment and yield in dry direct-seeded rice. In S Pandey, M Mortimer, L Wade, TP Tuong, K Lopes, and B Hardy (Eds.), Proceedings of the International Workshop on Direct Seeding in Asian Rice Systems: Strategic Research 297 Issues and Opportunities. 25-28 January 2000. Bangkok, Thailand.
Hussain, M, Farooq, M, Basra, SMA, Ahmad, N. (2006). Influence of seed priming techniques on the seedling establishment, yield and quality of hybrid sunflower. Int. J. Agric. Biol., 8:14-18.
Jalali, AH, Selehi, F. (2013) Sugar beet yield as affected by seed priming and weed control. Arch. Agron. Soil Sci., 59:281-288.
Karimmojeni, H, Rahimian Mashhadi, H, Shahbazi, S, Taab, AR, Alizadeh, HM. (2010). Competitive interaction between corn, Xanthium strumarium L. and Datura stramonium L. affecting some canopy characteristics. Aust. J. Crop. Sci., 4:684-691.
Kaya, MD, Okcub, G, Ataka, M, Cikilic, Y, Kolsaricia, O. (2006). Seed treatments to overcome salt and drought stress during germination in sunflower (Helianthus annuus L.). Eur. J. Agr., 24:291-295.
Kudsk, P, Streibig, JC. (2003). Herbicides-a-two-edged sword. Weed Res., 43:90-102.
Manalil, S, Busi, R, Renton, M, Powles, SB. (2011). Rapid evolution of herbicide resistance by low herbicide dosages. Weed Sci., 59:210-217.
Kurokawa, S, Hajika, M, Shibuya, T. (2015). Canopy height-to-row spacing ratio as a simple and practical onsite index to determine the time for terminating Ipomoea coccinea control in the Japanese soybean-growing systems. Weed Bio. Manag., 15:113–121.
Mehdizadeh, M, Gholami-Abadan, F. (2018). Negative effects of residual herbicides on sensitive crops: impact of rimsulfuron herbicide soil residue on sugar beet. J. Res. Weed Sci., 1:1-6.
Mousavi, MR. (2001). Integrated Weed Management: Principles and Methods, first ed. Meiad Press.
Murdock, EC, Banks, PA, Toler, JE. (1986). Shade development effects on pitted morning glory (Ipomoea lacunosa) interference with soybeans (Glycine max). Weed Sci., 34:711–717.
Norsworthy, JK, Ward, SM, Shaw, DR, Llewellyn, RS, Nichols, RL, Webster, TM, Bradley, KW, Frisvold, G, Powles, SB, Burgos, NR, Witt, WW, Barrett, M. (2012). Reducing the risks of herbicide resistance: best management practices and recommendations. Weed Sci., 60:31-62.
Nurse, RE, Hamill, AS, Swanton, CJ, Tardif, FJ, Sikkema, PH. (2007). Weed control and yield response to foramsulfuron in corn. Weed Technol., 21:453-458.
Paul, R, Sharma, R, Kulshrestha, G, Singh, SHB. (2009). Analysis of metsulfuron-methyl residues in wheat field soil: a comparison of HPLC and bioassay techniques. Pest Manag. Sci., 65:963–968.
Rao, VS. (2000). Principles of Weed Science. New Hampshire: Science Publishers, Inc.
Ullah W, Khan MA, Sadiq M. (2008). Evaluation of integrated weed management practices for corn. Pakistan J. Weed Sci. Res., 14:19-32.
Zhang, J, Zheng, L, Jäck, O, Yan, D, Zhang, Z, Gerhards, R, Ni, H. (2013). Efficacy of four post-emergence herbicides applied at reduced doses on weeds in summer corn (Zea mays L) fields in North China Plain. Crop Prot., 52:26-32.
Zand, E, Baghestani, MA, Soufizadeh, S, Eskandari, A, PourAzar, R, Veysi, M, Mousavi, K, Barjasteh, A. (2007). Evaluation of some newly registered herbicides for weed control in wheat (Triticum aestivum L.) in Iran. Crop Prot., 26:1349–1358.
Zhao, DL, Bastiaans, L, Atlin, GN, Spiertz, JHJ. (2007). Interaction of genotype × management on vegetative growth and weed suppression of aerobic rice. Field Crop. Res., 100:327-340.