الفهرس 
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Abstract
Throughout the agricultural history, crop plants have adapted to a range of
environments and traditional farming systems. The transition from primitive to
advanced cultivars caused the narrowing of their genetic base. To protect such
cultivars, it is required to broaden their genetic base through introducing
germplasm found in their more ancient, resistant varieties of their wild relatives.
However, genetic diversity is under relentless attack. This nessicetates the
conservation of the valuable gene pools. In Egypt, the western Mediterranean
coastal region provides a clear example of the impact of man’s disruptive activities
either by overgrazing or changing pattern of land use. Therefore, research dealing
with evaluation and conservation of the genetic resources in this area becomes of <prime importance.