الفهرس 
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Abstract
The present study was conducted during successive seasons 2007 and 2008 in the Nursery and Laboratory of Ornament Plants Division, Horticulture Department, Faculty of Agriculture, Minia University. The aim of such experiment was to study the influence of saline water irrigation at four treatments (0.0, 6000, 9000 and 12000 ppm from Nacl + Cacl2, 1:1 by weight) as the main factor and fertilization at ten treatments (Control, Azotobacter chroococcum, Bacillus megatherium var. Phosphaticum, E.M., A. chroococcum + B. megatherium, E.M. + B. megatherium, A. chroococcum + B. megatherium + E.M., A. chroococcum + B. megatherium + E.M. + 50 % NPK, A. chroococcum + B. megatherium + E.M. + 75 % NPK and 100 % NPK) as the sub-unit factor, on different vegetative growth characters and some chemical constituents of jojoba seedlings. The experiment was arranged in a split–plot design.
The most important results of this study could be summarized as follows :
1- Effect of saline water irrigation :
1-A- Vegetative growth characters :
• All vegetative growth characters including seedling height, stem diameter, number of branches, number of leaves, leaf area, seedling fresh and dry weights, leaves fresh and dry weights, main root length and roots fresh and dry weights / seedling were decreased as a result of irrigation seedlings with three levels of saline water.
• The highest reduction for all these traits were obtained due to the use of the highest level (12000 ppm) of saline water.
• Stem / root ratio was gradually increased as the salinity level was sloping upward.
1-B- Chemical composition :
• The use of three levels of saline water significantly decreased photosynthetic pigments (chlorophyll a, b and carotenoids contents) and percentages of N, P and K in the leaves, but Na and Ca % were significantly increased as compared with the control.