Iranian Journal of Field Crop Science

Iranian Journal of Field Crop Science

Effect of crop protection and herbicides management on weed species distribution in wheat fields

Document Type : Research Paper

Authors
Mozhgan Veisi 1
Hamid Rahimian Mashhadi 2
Hassan Alizade 2
Mehdi Minbashi 3
Mostafa Oveisi 4
1 Asisstant Professor, Department of Plant protection, Agricultural research center of Kermanshah
2 Professor, University College of Agricultural and Natural Resources, University of Tehran, Karaj
3 Asisstant Professor, Plant Protection Research Institute, Department of weed science, Tehran
4 Asisstant Professor, Aburyhan Pardis, Tehran University
10.22059/ijfcs.2014.53562
Abstract
In order to investigating theeffects of  crop rotation and applying of herbicides on weed distribution in  irrigated wheat fields of Kermanshah province, this study was performed during  2011-2012. Multivariate analysis (RDA) revealed the significant relationship between composition and species frequency and exerted management techniques. The first and second features of RDA indicated 57%, 74.9% and 58.3% distribution variance under the effect of crop rotation, grass herbicides and rotation, and broadleaf herbicides and rotation respectively. The highest effect was for the continuously wheat cultivation which had a positive correlation with the frequency of the weeds including Lolium  rigidum,  Hordeum spontaneum, Avena ludoviciana,  Lithospermum arvense and  phalaris brachystachys. Application of the herbicide clodinafop propargyl and rotation between wheat-barley and wheat-sugar beet had a low correlation with grass weeds. The weeds including Sinapis arvensis, Carthamus oxycantha, Vicia assyriaca  and Galium tricurnutum  in the rotation wheat- barely were not controlled by applying  2,4-D,  tribenuron methyl and Sulfosulfurun and had a high density.
Keywords
(RDA) Redundancy analysis
Distribution
weed flora
Density
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Iranian Journal of Field Crop Science
Volume 45, Issue 4 - Serial Number 4
Spring 2015
Pages 521-530

  • Receive Date 12 October 2013
  • Revise Date 15 October 2014
  • Accept Date 10 November 2014
  • Publish Date 22 December 2014