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Response of winter wheat (Triticum aestivum L.) to autumn applied saflufenacil

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DOI: 10.4236/as.2012.35091    3,671 Downloads   5,320 Views


There is limited information on the effect of saflufenacil application timing when applied in autumn to winter wheat. Five field experiments were conducted over a three-year period (2007- 2009) at two locations (Ridgetown and Exeter, Ontario) to evaluate the tolerance of winter wheat to autumn applications of saflufenacil applied pre-plant (PP), pre-emergence (PRE), or post-emergence (POST) at 25, 50, 100 and 200 g a.i. ha-1. As the dose of saflufenacil increased, the amount of injury observed also increased. By May of the following spring, injury ranged from 11 to 20% at the 25 to 200 g a.i. ha-1 doses of saflufenacil. Saflufenacil applied PP and PRE caused little to no injury in winter wheat. Saflufenacil applied POST and POST + Merge in the autumn caused up to 41% injury with the POST + Merge application being the most injurious. However, this injury was transient with no effect on winter wheat height or yield the following summer.

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Brown, L. , Soltani, N. , Shropshire, C. and Sikkema, P. (2012) Response of winter wheat (Triticum aestivum L.) to autumn applied saflufenacil. Agricultural Sciences, 3, 755-758. doi: 10.4236/as.2012.35091.

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