Abstract
The overall aim of this research was to Study the productivity efficiency of some durum wheat entries in the meddle region of Syria (Zone 2).
The experiment was conducted over two consecutive seasons ( 2006/07 and 2007/08) at Hama city, Syria. In both seasons, three local varieties (Cham5, Cham1, Doma1) and 47durum wheat entries wheat were planted randomized complete block design with three replicates was used. In both seasons, data were collected an grain yield, yield components, plant height, flag leaf length, flag leaf area and flag leaf weight. There were significant differences in grain yield between entries. ACSAD 1229, ACSAD 1253, ACSAD 1231, ACSAD 1255 and ACSAD 1223 were superior to local varieties in terms of grain yield during the two seasons.
The results showed a big role for flag leaf length and flag leaf area to increase productivity and a positive influence in increasing weight seeds in spike.