الفهرس 
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Abstract
Field bean or Faba bean is one of the important legume crops in Egypt for two reasons. One, it is the main source of plant protein in human diet. Second, Faba bean area surpasses that of the other seed legumes. However, the local production supplies only about one-half of the total consumption. To meet the national requirement of that legume crop, either the area or yield per unit area should be increased.
Since the land area is limited in Egypt, and expanding the area allotted to the crop is not likely to take place, breeding high yielding cultivar is the effective approach to increase the production. Besides, breeding early maturing cultivars of broad bean may allow intensive production and better land usage. The availability of genetical information on faba beans is helpful to the breeder in designing suitable programs to develop well adapted cultivars to specific areas of. production.
The present work was meet to provide some information with the hope that, these information might be helpful to fill the gap in genetical studies on faba beans to clarify some aspects of the inheritance of some quantitative characters of broad beans. Therefore, certain cultivars were selected for the study. In order to satisfy the objectives of this study, two approaches were followed. The first is the conventional simple approach method of analyzing the segregating generations. The second is the diallel analysis which provides more genetical information in a rather shorter time. It is hoped that the results reached by both approaches may be helpful for the breeder to develop better bean cultivars on scientific bases.