Abstract
This study comprised four locally cultivated bread wheat varieties ; (Abu – Ghraib 3, IPA, 99, Tamoaz 2, and Iraq) which were sown in 2003 – 2004 under rain fed and supplementary irrigation (SI) with two levels of nitrogen fertilizer (0 and 80 kg N. ha¯1). The harvested grains stored for 3.5 year under room temperature before measuring the parameters. The purpose of this study was to find out the effect of (SI) and N. fertilizer on some physiochemical properties. The results indicated significant differences in protein contents, seed hardness, granularity, width, thickness, solvent retention capacity and protein sedimentation value among varieties. Nitrogen fertilizer affected all these parameters, the second order interaction had no significant effect. Generally N. fertilizer and varieties had a great influence on these criteria comparing with the supplementary irrigation.
