Effect of Three Growth Stages of Sorghum Residues on Lolium temulentum Weeds Associated with the Barley Crop

Abstract

Abstract The aim of the study was to investigate phytochemical compounds of aqueous extracts leaves of three growth stages of Sorghum., and the study the effect of those three aqueous extracts on the darnel weed associated with the barley. The GC-MS method was used to screen the phytochemical compounds of three-stage of growth Sorghum which showed diagnosis a number of compounds depending on the retention time such as Daucol, 13-Octadecenal, and Oleic Acid for growth stage 4-6 leaves, and 2,2-Dimethylpropanoic acid, 1-Eicosanol, and Batilol for growth stage 8-10 leaves, and Hexadecanoic acid, Bis(2-ethylhexyl) phthalate and 1-Docosene for growth stage 12-14 leaves. The results showed significant effects of aqueous extracts leaves of Sorghum in the percentage of control dernal weed where recorded 64.133, 85.360, and 86.427% after 30, 60, and 90 days of treatment at growth stage 12-14 leaves of Sorghum compared with 0.00,0.00 and 0.00 in the control treatment.