Broomrape control in faba bean (Vicia faba L.) with glyphosate and imazaquin
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Sauerborn, J. Saxena, M. & Meyer, A. (1989). Broomrape control in faba bean (Vicia faba L. ) with glyphosate and imazaquin. Weed Research, 29, 97-102.
Field studies were carried out to evaluate the efficacy of imazaquin and glyphosate in controlling broomrape (Orobanche crenata Forsk. and O. aegyptiaca Pers.) in faba bean (Vicia faba L.) in Northern Syria. Several rates and times of application of the herbicides were tested. Nearly complete control of broomrape was achieved with both the herbicides when they were sprayed twice (when the broomrape attachments to the faba bean roots were at tubercle stage of develoment and 15 days later) at a rate of application of 80 g a.i. ha−1 for glyphosate and 10 g a.i. ha−1 for imazaquin. However, the yield of faba bean did not increase with these treatments, suggesting that the herbicides at these rates were still causing some physiological disorder in the plant that counteracted the beneficial effect of broomrape control on the performance of faba bean plants.