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Effects of Fluazifop-P-Butyl and Glyphosate on Yield and Weed Control in Okra Vegetable (Abelmeschus esculentus (L) Moench) in North Sudan.

Mukhtar AM, Suhair ME and Amal AN

The herbicides experiment was conducted for two consecutive summer seasons (2014, 2015) at Altraa village, Sharg Elneel Unit, Dongola Locality, Northern State, Sudan located within latitude 16° and 22°N and longitude 20° and 32°E to determine fresh pod yield loss due weed competition and to evaluate and compare the effects of Fusilade applied as post-emergence at 0.7, 1.1, 1.3 and 1.5 l/fed and glyphosate applied pre-emergence at 0.3, 0.4, 0.5 and 0.6 l/fed and applied post-emergence at the same rates. Results obtained from this experiment indicated that, unrestricted weed growth significantly reduced fresh pod yield (kg/fed) by 67.40% in both summer seasons.

Results obtained from this experiment reported that, Fusilade herbicide was the best in controlling graminae weeds while glyphosate herbicide was the best in controlling broad-leaved weeds in both summer seasons. Also results obtained from this experiment reported that, among the two herbicides treatments the best weed control was achieved by glyphosate which applied post-emergence at 0.6 l/fed while Fusilade at 1.5 l/fed treatment applied postemergence gave higher fresh pod yield in both summer seasons. The use of the two herbicides treatments reduced significantly weed biomass (g/m2).