Author(s): PARITA, D. BADIYALA AND S.S. RANA

Abstract: Effect of seven weed control treatments viz., pre-emergence metribuzin 0.210 kg ha-1, post-emergence clodinafop 0.060 kg ha-1, post-emergence pinoxaden 0.060 + metsulfuron 0.004 kg ha-1, post-emergence mesosulfuron 0.012 + iodosulfuron 0.0024 kg ha-1, post-emergence clodinafop 0.060 + metsulfuron 0.004kg ha-1, hand weeding twice (30 & 60DAS) and weedy check was evaluated on weed dynamics, yield attributes and yield of wheat at Palampur during the rabi season of 2014-15. Based upon the assessment made at 60, 120 DAS and at harvest, post-emergence application of clodinafop 0.060+metsulfuron 0.004 kg ha-1provided wide spectrum control of weeds (Phalaris minor, Avena ludoviciana, Lolium temulentum among grasses and Vicia sativa, Anagallis arvensis, Coronopus didymus among broad-leaved weeds) which was as good as hand weeding twice. These treatments were followed by pinoxaden 0.060+metsulfuron 0.04 kg ha-1(post) in curtailing the overall count and dry weight of weeds at different stages of observation. The yield and yield attributes were highest in clodinafop 0.060+metsulfuron 0.004 kg ha-1(post) followed by pinoxaden 0.060 +metsulfuron 0.004 kg ha-1(post). The least wheat grain yield was recorded under weedy check. The results suggested that clodinafop 0.060 +metsulfuron 0.004 kg ha-1(post) followed by pinoxaden 0.060+metsulfuron 0.004 kg ha-1(post) were the best broad-spectrum herbicide combinations in order to minimize the effect of diverse weed flora in wheat crop under the mid hills of Himachal Pradesh.

DOI: 10.22271/09746315.2021.v17.i2.1448

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