GENETIC ANALYSIS OF THIRD FILIAL GENERATION

Three generations (P1 , P2 , and F3) of four crosses in a six row barley (Jazera 1 X Badia , Tadmer X Arivate , Rehan X Benedict and Forest X Baraka) were used to estimate average degree of dominance , habitability , and expected genetic advance from selections for the following quantitative characters : maturity time , plant height , grain yield and its components. The results indicated that direct selection will be effective in the third filial generation to improve plant height , grain yield and number of grains per spike in the all crosses. Recurrent selection or selection in the forth generation will be suggested to increase the desirable alleles for the other traits.