BIO-EFFICACY OF PINOXADEN AS POST-EMERGENCE HERBICIDE AGAINST WEEDS IN WHEAT CROP

A field study was carried out during the rabi season 2020-21 to identify weed species and
investigate the efficacy of post-emergence herbicides on weeds and their effect on wheat grain
yield at AICRP on Wheat, JNKVV, Jabalpur (M.P.). Seven different treatments were applied,
namely pinoxaden at 40 g a.i./ha, pinoxaden at 45 g a.i./ha, pinoxaden at 90 g a.i./ha, clodinafop
propargyl at 90 g a.i./ha, sulfosulfuron at 25 g a.i./ha as post-emergence (25 DAS), hand weeding
at 30 DAS and weedy check. The highest number of individuals was recorded for Medicago
denticulata (30.82%), Cichorium intybus (29.94%), Phalaris minor (15.60%), Chenopodium album
(15.32%) and Anagallis arvensis (8.30%). All the herbicide treatments provided significant control
of weeds causing significant reduction in density of target weed flora and improved the grain yield
compared with the weedy check. The highest mortality of weeds (41.12%) was recorded where
pinoxaden at 90 g a.i./ha was applied. However, pinoxaden at 45 g a.i./ha is the most effective and
best option for higher values of growth parameters, yield attributes and maximum wheat grain
yield.