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Abstract
The present experiemnet was carried out in pots under wirehouse conditions in the department of agricultural btany, faculty of agriculture, Kafr El-sheikh, Tanta university during the two successive seasons of 1999-2000 and 2000-2001. the main objetive of this stufdy was to recognize the effect of some growth regulators on foba bean plants which grewunder the infection of Orobanche Crenata L.