The study was carried out in the Experimental field of the Department of Genetics and Plant Breeding-Agricultural University. Plovdiv during the period 2009-2011. New breeding lines were investigated using block design with 4 replications and 20 m2 plot size. The aim of the investigation was to estimate barley lines by yield. https://www.bekindtopets.com/special-pick-Grandpa-s-Best-Prairie-Hay-quick-pick/