Effect of herbicides and herbicide mixtures on weeds in wheat

DOI: 10.18805/ijare.v50i2.9587    | Article Id: A-4195 | Page : 107-112
Citation :- Effect of herbicides and herbicide mixtures on weeds in wheat .Indian Journal Of Agricultural Research.2016.(50):107-112

Dhirender Choudhary, P.K. Singh1, N.K. Chopra and S.C. Rana*

sureshiariknl@gmail.com
Address :

Indian Agricultural Research Institute Regional Station, Karnal-132 001, India.

Submitted Date : 22-07-2014
Accepted Date : 9-04-2016

Abstract

A field investigation was carried out to evaluate the effect of herbicides and their mixtures on weeds in wheat (Triticum aestivum L.) cv. PBW-343. Minimum weed density per m2  and weed dry weight  (5.13 and 17.31g) was recorded with sulfosulfuron at 25g ha-1 followed by  clodinofop at 60g + metsulfuron methyl at 4g ha-1  (5.19 and 18.45g), metribuzin at 200g ha-1 (5.85  and 25.98g), pendimethalin at 1000g fb 2,4-D at 400g ha-1 (6.49  and 31.73g) and hand weeding twice (7.01  and 35g), respectively. Also, maximum weed control efficiency was recorded under sulfosulfuron at 25g ha-1 (83.85%) followed by clodinofop at 60g + metsulfuron methyl at 4g ha-1 (83.17%) and metribuzin at 200g ha-1 (75.85%), respectively.  All the weed control treatments recorded significantly higher harvest index than the weedy check (40.24). Among various herbicidal treatments, application of clodinofop at 60g + metsulfuron methyl at 4g ha-1 recorded highest harvest index (41.91) followed by sulfosulfuron at 25 g ha-1 (41.83) and pendimethalin at 1000g fb 2,4-D at 400g ha-1 (41.25) respectively. The harvest index recorded under clodinofop at 60g + metsulfuron methyl at 4g ha-1 and sulfosulfuron at 25 g ha-1 was significantly at par with weed free (42.06).

Keywords

Harvest index Herbicides Weeds Wheat.

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