xt-stroke-width: 0px; "> 1.Izadi, Z., Ahmadvand, G., Ashari, M. and Piri, Kh. 2011. The effects of nitrogen and plant
density on growth, yield and essential oil of peppermint.Iranian J. Field Crops Res. 8: 5.824-
836. (In Persian)
2.Jabbarpoor, S. ZehtabSalmasi., S. Aliari., H. Javanshir., A., and Shakiba, M. 2012. The effect
of history and plant density on yield and essential oil of Mentha piperita L. Agr.Eco. J. 5:
416-23.
3.Karimi., M.M., Turowska., G. and Siddique, K. 1991. Crop growth and relative growth rates
of old and modern wheat cultivars.Agr. Res. J. 42: 13-20.
4.Khorshidi., J., Tabatabaei., M. and Sefidkon, F. 2009. The Effect of different densities of
planting on morphological characters, yield, and yield components of fennel (Foeniculum
vulgare Mill cv. Soroksary). Agri. Sci. J. 1: 2. 66-73.
5.Mansoori, I. 2014. The effect of plant density and harvesting time on growth and essential oil
of peppermint (Mentha piperita L.). Med. Bio. J. 3: 2.113-116.
6.Mansoori, I. 2015. The effects of application microelements and plant density on yield and
morphological traits of peppermint (Mentha piperita L.). J. Crop Improv.16: 1.43-54. (In
Persian)
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141
7.Raoofi., M. and Giti, S. 2015. The effect of hand weeding and planting density on the yield,
essential oil content and some morphological properties of peppermint (Mentha piperita L.)
in Hamadan. Crop Weed J. 11: 2.154-160.
8.Sharma, P.C. and Kanjilal, P.B. 1999. Effect of planting time and density on yield and quality
of peppermint (Mentha piperita L.).Ancient Sci. Life. 18: 284-289.
9.Zehtab, S., Heidari, F. and Alyari, H. 2008. Effect of microelements and plant density on
biomass and essential oil production of peppermint (Mentha piperita L.), J. Plant Res. Sci. 1:
1.24-26. (In Persian)
)