الفهرس 
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Abstract
Six woody tree species were evaluated, at the seedling stage through two separate field experiments, from the viewpoint of their adaptability and growth performance under the prevailing environmental conditions of north coast region (Gamasa city, Dakahlia Governorate )in response to different agricultural treatments during the two successive seasons of 1998 and 1999.
In the first experiment, six woody tree seedlings, namely, Schinus molle, Schinus terebinthifolius, Azadirachta indica, Melia azedarach , Acacia saligna and Melaleuca jenistifolia, were evaluated in response to four soil types (sandy 100%, sandy 87.5% + clay 12.5% sandy 75% + clay 25 % and sandy 50% + clay 50%)in terms of vegetative growth parameters and photosynthetic pigments content.
In the second experiment, Acacia saligna seedling were investigated in response to four fertilization treatments (control, N-fixing boifertilizer, organic fertilization and NPK fertilization )and seven growth regulator treatments (0.25, 50 and 100 ppm of GA3 or IAA) in terms of vegetative groeth, photosynthetic pigments and N, P and K% and uptake of the leaves.