This article Citation:

V. Pratap Singh*, Tej Pratap, S.P. Singh, Abnish Kumar, Akshita Banga, Neema Bisht, Neeshu and Kavita. 2015. Comparative efficacy of post-emergence herbicides on yield of wheat . Indian Journal of Weed Science : 47( 1) 25- 27.







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Volume Issue Publication year Page No Type of article
47 1 2015 25-27 Full length articles
Comparative efficacy of post-emergence herbicides on yield of wheat

V. Pratap Singh*, Tej Pratap, S.P. Singh, Abnish Kumar, Akshita Banga, Neema Bisht, Neeshu and Kavita

DOI:

Email: vpratapsingh@rediffmail.com
Address: Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263 145

Keywords:

ACM 9, Chemical control, Herbicides, Wheat, Yield



Abstract:

Weeds are one of the most important factors that impose a great threat to crop yield. In order to alleviate weed infestation in wheat (Triticum aestivum L.), efficacy of various doses of ACM 9 were tested during Rabi 2010 to 2011 at Norman E. Borlough Crop Research Center, Pantnagar, Uttarakhand. Results revealed that ACM 9 applied at 1000 and 1200 g/ha severely reduced total density and dry weight of weeds as compared to control, while poor weed control was achieved using clodinafop 400 g/ha and metribuzin 300 g/ ha. Highest grain yield of wheat was recorded with ACM 9 at 1200 g/ha (4.09 t/ha) during 2010 while in 2011, it was with ACM 9 at 1000 g/ha (4.16 t/ha). Post-emergence application of ACM 9 at 1200 and 1000 g/ha caused increase in wheat yield (18.2 and 97.4% during 2010 and 2011, respectively) over control. Highest number of spike and grains per spike were obtained from plots treated with ACM 9 at 1200 and 1000 g/ha as post-emergence. Based on the depressed wheat yield obtained, clodinafop 400 g/ha and metribuzin 300 g/ha can be said to be phytotoxic to crop plants.

 

 





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