THE ALLELOPATHY POTENTIAL AND GLYPHOSATE INFLUENCE ON ANATOMICAL FEATURES OF EGYPTIAN CLOVER PLANT (TRIFOLIUM ALEXANDRINUM L.) INFESTED WITH DODDER WEED (CUSCUTA CAMPESTRIS L.)

The effects of allelopathy and glyphosate on anatomical characters of Egyptian clover (Trifoliurn alexandrinum L.) infested with dodder plants were studied. The anatomical structure of infested clover stem was negatively affected, diameter of clover stem, number of vascular bundles and thickness of xylem and phloem tissue were decreased. In particular, glyphosate treatment at 168cm(3) hectare(-1) and aqueous extract of sunflower at 10% improves stem diameter (1) and number of vascular bundles as well as thickness of xylem and phloem tissue of infested clover stems. Moreover, dodder stem diameter and number of haustorium plant(-1) were decreased as a response to the application of various plants extracts and glyphosate herbicide. Besides, the results showed that glyphosate at 240cm(3) hectare(-1) combined with aqueous extract of pigweed at 5%, glyphosate at 168cm(3) hectare(-1) combined with rice aqueous extract at 10% and glyphoset at 360cm(3) hectare(-1) gave the best control for dodder plants