الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
INTRODUCTION
Cotton is considered as the first fibre crop in the world as
well as an important crop in Egypt. Hence, a great effort has been
devoted to increase the yield capacity and fiber quality through
breeding programs. That depends on the knowledge concerning
multiple factors such as heterosis, inbreeding depression and the
nature of the action and interactions of genes that controlling
different characters. Cotton breeding program used artificial
hybridization between the desired genotypes and using pedigree
method of selection for breeding and production of new varieties
that possess higher yield and good quality.
At the same time, the production of pr