Control of wild barley by sulfosulfuron+met sulfuron (Total) and sulfosulfuron (Apyrus) herbicides using time of application and wheat density

Document Type : Research Paper

Authors

1 Instructor, Fars Agricultural and Natural Resourses Research Center

2 Associate Professor, Iranian Plant Protection Research Institute, Weed Research Department, Tehran, Iran

3 Instructor, Fars Agricultural and Natural Resourses Research Center, Shiraz, Iran

Abstract

In order to study the complementary effects of application time of two herbicides sulfosulfuron 75% WG (Apyrus) and 75% sulfosulfuron + 5% metsulfuron-methyl (Total) and planting wheat density on wild barley (Hordeum spontaneum koch.) control, an experiment was conducted in randomized complete blocks design with two-factors during 2012-2013 growing season in Zarghan (Fars). The first factor was five levels of herbicide application including application of Apyrus 75 WG (30 g ha-1 +Citogate 1 L ha-1) and Total 80 WG (5o g ha-1 +adjuvant 1250 ml ha-1) at 2 to 4 leaf stage and second joint stem of wild barley. The second factor was wheat density of Chamran cultivar in four levels including 400 (recommended rate), 500, 600 and seedlings per m2. Results showed that herbicides, crop density and their interaction had significant effect on wild barley traits such as seedling number, biomass, dry weight, spike weight and also crop yield. Apyros and Total, using at second joint stem of wild barley, had the highest effect by 88 and 93 percent respectively. The best treatment for controlling wild barley was the application of Total at second joint stem of wild barley and planting of 400 seedlings of wheat per unit area.

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References

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Iranian Journal of Field Crop Science
Volume 47, Issue 3 - Serial Number 3
January 2017
Pages 393-400

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History

  • Receive Date: 05 April 2015
  • Revise Date: 15 December 2015
  • Accept Date: 22 December 2015
  • Publish Date: 21 November 2016

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