Herbicide Tolerance

Experiments involving the Syrian sage (Salvia syriaca) were conducted in order to determine the possible chemical control of the plant (Qasem and Abu-Irmaileh 1983). Two experiments were done by spraying 2,4-D ester or MCPA (2-methyl-4-chlorophenoxy acetic acid) at 1 kg a.i. (active ingredient)/ha and their combination with dicamba (3, 6-dichloro-o-anisic acid) at 0.5+0.15 kg a.i./ha and 1+0.15 kg a.i./ ha (two different locations) applied at the pre-flowering stage of the weed. Syrian sage competed with wheat and significantly reduced yield. Removing the weed 2 or 4 weeks after its emergence improved the grain and straw yield significantly at both locations. Spraying MCPA at 1 kg a.i./ha and combination of MCPA and dicamba (1 kg a.i. MCPA+0.15 kg a.i. dicamba/ha) resulted in good control of the weed. The treatments increased significantly wheat yield over the treatments. 2,d-D at 1 kg a.i./ ha resulted in good control of Syrian sage but its effect was limited in time and magnitude.

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