Investigation of Plant Density and Weed Competition in Different Cultivars of Wheat In Khoramabad Region

In order to study the effect of plant density and competition of wheat with field bindweed (Convolvulus arvensis) on yield and agronomical properties of wheat(Triticum Sativum) in irrigated conditions, a factorial experiment as the base of complete randomize block design in three replication was conducted at the field of Kamalvand in khoramabad (Lorestan) region of Iran during 2008-2009. Three plant density (Factor A=200, 230 and 260kg/ha) three cultivar (Factor B=Bahar,Pishtaz and Alvand) and weed control (Factor C= control and no control of weeds)were assigned in experiment. Results show that: Plant density had significant effect (statistically) on seed yield, 1000 seed weight, weed density and dry weight of weeds, seed yield and harvest index had been meaningful effect for cultivars. The interaction between plant density and cultivars for weed density, seed yield, thousand seed weight and harvest index were significant. 260 kg/ha (plant density) of wheat had more effect on increasing of seed yield in Bahar cultivar wheat in khoramabad region of Iran.

Authors:

• Ali Khourgami
• Masoud Rafiee
• Korous Rahmati
• Ghobad Bour

Keywords:

• Convolvulus arvensis
• plant density
• Triticumsativum
• weed density
• Wheat

References:

[1] R.J.Aldrich (1984).weed-crop ecology.breton publ.,north scituate,ma.
[2] P.Barbieri. J.Kropff (2002).what is the trend in weed research.European
weed res.soc newsletter,no:81
[3] R.Gorbani. A.rashedmohasel K.Hoseni .K.Mosavi (2009).sustainable
management of weed. Mashhad university.Iran
[4] S.Murfhy.D.YakubuS.F.Weise .C.J.Swanton (1996) Effect of planting
patterns on intra row cultivation competition between corn and late
emerging weeds.weed sci.49:69-76
[5] G.Normohamad.A.Siadat.A.kashani (2005) cereal farming.shahid
chamran university.ahvaz.Iran
[6] M.Rashed mohasel(1998). Field been weed (weed control). Mashhad
university.
[7] A.Zand.M.Baghestan.P.Bitarafan (2007).bulletin of registered herbicide
in Iran.Mashhad university.
[8] A.Zeydaliaz.M.Adbakht.A.Mosavi (2007).problem of herbicide and
sustainable agriculture. Sustainable management of
production,technology and input of agriculture.
[9] A.Zeydali.A.Azadbakht (2008).control method of Field been weed
(convolvulus arvensis L).agricultural organization of lorestan,Iran.