Abstract: This experiment was carried out, during season 2011/2012, at two locations, Northern Gedarif in rainfed condition, and at Sennar Agricultural Research Station Farm under irrigation system, to evaluate the efficacy and selectivity of post- emergence application of Diserbone E 72, Stard 600 SL, and 2, 4-D Ester (new formulations of 2, 4-D (each at 0.32 kg a.e. / fed, on weeds control in sorghum. The tested herbicides gave moderate to excellent control (56 – 95 %) of broadleaved weeds throughout the season and poor efficacy against grassy weeds in both locations. They also significantly reduced weed biomass in comparison to their respective control. Unrestricted weed growth reduced sorghum grain yield by 20 - 28%. Diserbone E 72, Stard 600 SL and 2, 4-D Ester outyielded the unweeded control and resulted in grain yield comparable to the counterpart Dicopur 720 SL. The Rf value of 2, 4-D standard was 0.86, the minimum detectable quantity was 0.04 μg and the recovery of the method was 84%. No residues of 2, 4-D were detected in all samples. The maximum residue limit (MRL) of 2, 4-D in sorghum is 2 mg/kg.
Keywords: Rainfed, Formulations, Counterpart, Broadleaved, Handweeding, Unweeded.
Title: Evaluation of Diserbone E 72, Stard 600 SL, and 2, 4-D Ester (2, 4-D) for weeds control in sorghum
Author: Ayman Abdel Maged Awad, El fatih Abdel Aziz, Hassan Abdelgadir, Dafalla Ahmed Dawoud, Lubna EL. Khidir, Rawda Y. ELHabieb
International Journal of Life Sciences Research
ISSN 2348-3148 (online), ISSN2348-313X (Print)
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