الفهرس 
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Abstract
seeds of the three breed wheat cultivars Giza 155, Giza 157 and sakha 69 and their hybrids were tread with gamms rays and/ or Ethy lmethan sulphonate .
Two doses of gamma rays (15 and 25 kr) and one concen tration of EMS (0.124) were used in single and combined treatments of the seeds. Treated and untreated seeds were sown in randomized complete block design..
In the two hybrid combinaliions Giza 155 x