QUALITY EVALUATION OF LANDRACE AND DURUM-WHEAT CULTIVARS GROWN IN JORDAN

Ten 'Durum' wheat cultivars (including a 'Landrace', old and newly dev eloped cultivars) have been evaluated for a number of quality paramete rs. The 'Landrace Horani-27', had the highest protein content (14.4%), but intermediate flour yield (43.7%). 'Lacesh', gave highest flour yi eld (57.5%), particle size index (PSI) (19.7%), sodium dodecyl sulphat e sedimentation (SDS-SED) (52 ml), but was intermediate in protein con tent (9.7%). The old cultivars, 'Der Alla-2' and 'Der Alla-6' had no c lear-cut patterns for the quality parameters studied. Proximate analys is showed that these cultivars were higher than average for fibre and ash contents. It was possible to cluster these cultivars into 3 groups each for flour yield, protein content, SDS-SED, PSI% and thousand ker nel weight. The variability in the composition of each cluster allows for combining certain cultivars to complement each other for a better balance of these quality traits.