الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
his study was carried out in order to evaluate cultivated varieties of Triticum aestivum L. and their cultivation fields in north middle and south parts of the Nile Delta region, Egypt. The bioaccumulation, translocation and effective accumulation of the macroelements, microelements and pollutants in the soil and Triticum aestivum plant were investigated. Out of this study the plant growth, yield and grains quality of the cultivated Triticum aestivum varieties did not vary significantly in most cases but cultivation of Masr 1 variety is suitable for increase the production of grains quantity while cultivation of Gmiza 9 variety is suitable when the straw production is intended. Also, studying of the suitability of the cultivated varieties is needed from time to time as the quality of the Nile Delta soil changes due to the cultivation practices and the drainage deterioration of the area. This is in addition to the increase in pollution sources as traffic, different industries, fertilizers, herbicides and pesticides which are increasingly used nowadays. Concerning the cultivation policy of Triticum aestivum varieties at the Nile Delta region indicated that the most cultivated varieties are Gmiza9 and Sakha 93 which fulfill 27.8 and 0 % respectively of the good quality of the crop, while Masr 1, Sakha 94, Sakha 61 and Giza 168 varieties fulfill 38.9, 16.7, 11.1 and 5.5 % respectively of the good quality of the crop. So that this study suggests broad cultivation and widely spread of Masr 1 and Gmiza 9 varieties for insurance of high quality and production crop especially for grain and straw yield production which is the intended aim of the Egyptian Government to reduce the dependence on imported wheat and increase the wheat production in Egypt.