Global Advanced Research Journal of Agricultural Science (ISSN: 2315-5094)Vol. 1(1) pp. 007-016, March, 2012.

 Available online http://garj.org/garjas/index.htmCopyright © 2012 Global Advanced Research Journals

Full Length Research Paper

 

Weed control and yield attributes against post-emergence herbicides application in wheat crop, Punjab, Pakistan

Muhammad Asif Shehzad¹*, Muhammad Ather Nadeem1 and Munawar Iqbal²

 

¹Department of Agronomy, University of Agriculture, Faisalabad-38040, Pakistan.

²Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad-38040, Pakistan.

*Corresponding author’s email: asifbukhari01@gmail.com ; Tel: (+92) 3346059373

 

Accepted 02 March, 2012

Abstract 

Weeds infestation is one of the major threats to crop growth and yield. The efficacy of various post-emergence herbicides was evaluated on the basis of P. minor, A. fatua and E. spinosa population reduction and yield attributes in wheat (Triticum aestivum L.) crop. Results showed that clodinafop propargyl increased wheat grain per spike, 1000-grain weight, straw yield and grain yield up to 92%, 80%, 107% and 59%, respectively as compared to control, while fenoxaprop-p-ethyl showed the lowest response. Reduction in weed density and dry masses was found parallel to the yield, which was higher for clodinafop propargyl and lowest for fenoxaprop-p-ethyl. The maximum rate of benefit (Rs. 147781/1679 US$) ha-1 and marginal rate of return (47%) was observed against clodinafop propargyl (0.12 kg a.i ha-1) followed by bromoxynil + MCPA and efficacy of clodinafop propargyl support its use in wheat crop for effective weed control and better yield.

 

Keywords: Weed control; wheat yield; herbicides; economic analysis; weeds dry weight.

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