Abstract
Response of various post emergence herbicides at different levels i.e. round up was
applied as 4.75 lha-1, 2.75 L ha-1 and 1.75 L ha-1 (Glyphosat), Gramaxone 20EC
(Paraquat) as 2.55 lha-1 and untreated (no spray) were field experimented against cotton
cultivar CIM-473 under field condition at CCRI cotton research institute, Multan.
Significant Control of weeds and increase in yield and yield contributing factors were
observed. It was indicated that the highest significant yield, number of bolls, fresh
weed biomass, dry weed biomass, plant height and weed control were obtained by
using Round up (Glyphosate) @ 4.75 L ha-1 as compared to other treatments including
untreated (control). Average boll weight was not significant among treatments but
significant against control. The highest net profit was obtained by the Round up 490
G/L when treated @ 4.75 L ha-1 than all other treatments.
Raheel Atif Hameed, Shazia Ajum, Muhammad Naveed Afzal. (2017) Glyphosat and Paraquat herbicides weed control and yield effect after emergence in cotton, Asian Journal of Agriculture and Biology, Volume 5, Issue 4.
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