الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Generally, from the obtained data, it can be concluded that:-
1-The increases in watering up to normal watering (W4) for wheat plants significantly and gradually increased grain yield/fed.
2- Bed sowing method was better for growing wheat plants than flat due to saving the amount of irrigation water from 8 to 12% under this investigation. As well as bed sowing method markedly increased grain yield by 7.7% in the second season.
3- Sids 12, Misr 1 and Line 2 produced maximum grain yield under the conditions of this investigation and under four irrigation during wheat growing season (normal watering)
4- Also, the highest grain yield was obtained from Misr 1 under Bed sowing method and from Giza 171 under flat sowing method.
5- Line 1, Gemmeiza 11, Misr 1 and Line 2 were the most tolerant genotypes for grain yield and it can be used in crossing block to improving and producing new cultivar more tolerant for drought.