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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 556999'Rollo'Hordeum vulgare L. subsp. vulgare Utah, United StatesNSGCKERNELS1991DEVELOPED1991CultivarSix-rowed, semi-smooth awned, midseason, erect growing, spring feed barley. Aleurone color white. 1000-kernel weight averages 44g. Compared to Steptoe, heads 3 d later, equal in test weight and 1cm shorter, but has stronger straw (30 vs. 51% lodging for Steptoe). Grain yield exceeds Steptoe by 4% (6748 vs. 6478 kg/ha) in Utah tests and by 5% (5260 vs. 5000 kg/ha) in Western Regional Spring Barley tests. Slightly lower than Steptoe in protein (10.98 vs. 11.36%). Field resistance to barley loose smut and covered smut. Moderate resistance to powdery mildew.1451971PI 556999