Abstract
The experiment was conducted at two locations , The first was at University of Mosul, college of Agriculture and Forestry and the second was at Salah Eldin governorate (Isdera village) during the 2010-2011 season using new twenty four naked barley entries from the International Center for Agricultural Research in the Dry Areas (ICARDA) in addition to the locally grown variety Rihane-3 under rainfed conditions in Iraq. Randomized complete block design with three replications was used. The characters studied were: number of days to 50 % flowering, maturity date, plant height, spike length, number of grains/ spike, number of spikes/ m2 , grain yield (kg/ha), biological yield (kg/ha), harvest index and 1000-grain weight. Phenotypic and genetic variances were highly significant for all the characters. at two locations therefore the breeder can select the superior entry. Phenotypic and genetic correlations were positive and significant between grain yield and each of number of grains/spike, number of spikes/ m2 and biological yield for both locations. Heritability was high for all the characters except for harvest index at Mosul location and number of days to 50 % flowering at Isdera location which they were medium in their estimated.
