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Abstract
Date palm (Phoenix dactylifera L.) is a monocotyledonous, long lived; diocious species belongs to family palmaceae (Areaceae), which inhibit tropical and subtropical regions of the world. Dates are famous of their high nutritional value in the developing and under-developing countries. It used to be one of the main sources of food that forms a complete and non-expensive meal. The agricultural importance of palm tree is due to its high tolerance to adverse abiotic stresses, i.e. salinity, drought and high temperature, in addition to low maintenance and yield harvesting costs. Therefore, date palm is palm is the major plantation crop in arab world, whereas most of arab lands are deserts. In Saudi Arabia, for example, date palm trees are grown on about 90% of the cultivated land. Moreover, arabic countries are the major producers of dates, i.e. Egypt (16.2%) of the total world production, followed by Iran (13.0%), Saudi Arabia, United Arab Emirates, Pakistan, Algeria, Sudan, Oman, Libya, respectively (FAO, 2004).