الفهرس 
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Abstract
In this study, the interference of propachlor, imazethapyr and chlorimuron-ethyl with certain aspects of the physiology and biochemistry of broad bean (Vicia faba L. Giza 2) was studied in micropropagated tissues (in vitro) and in the intact seedlings (in vivo). All the used herbicides induced varied decrease in growth parameters both in in vitro cultured tissues and in shoots and roots of the in vivo grown seedlings. The magnitude of response was most pronounced with chlorimuron-ethyl followed by imazethapyr and finally by propachlor, particularly at the highest concentrations used.