Effectiveness of various post emergence herbicides against broad leaved weeds in wheat crop and their impact on grain yield of wheat (Triticum aestivum L.)

Author(s) : Muhammad Shahbaz, Azhar Mehmood, Usman Hassan, Aftab Hussain, Muhammad S. Kashif, Muhammad Tariq Chaudhry, Ishtiaq Hassan, Mushtaq Ali, Muhammad Anjum Ali

Digital object identifier:

10.52587/JAF030203

Abstract:

Field experiments were performed for two successive crop seasons (2019-20 and 2020-21) to evaluate the effectiveness of various post emergence herbicides for controlling broad-leave weeds in wheat field and their impact on grain yield of wheat at Adaptive Research Farm Sheikhupura Punjab, Pakistan. The effects of herbicides on weed density, yield attributes and grain yield were recorded. Significant impact of herbicides was recorded in decreasing weed density and increasing grain yield with a positive effect on productive tillers, grains per spike and thousand grains weight. Highest weed control efficiency (85.0 & 86.7) (81.5 & 84.3) was calculated from broad-X & wheat star as compared to control during both crop seasons. Maximum grain yield (3783.3 & 4310.0 kgha-1) was recorded from plots treated with broad-X with 19.8 and 26.7 % higher than control followed by wheat star that recorded 19.6 and 21.0% higher grain yield as compared to the control during both years. Among the studied herbicides, chlorpyralid+ fluroxypyr methy+ MCPA (broad-X) and chlorpyralid+ fluroxypyr methyl+ tribenuran methyl (wheat star) were the most effective and suitable options in controlling broad leaved weeds as well as increasing the grain yield of wheat crop.