title: Seed production and variety changing periods of spring barley in the FSBSI “ARC “Donskoy”
abstract: The current paper has presented the stages of variety changing and the results of four-year study (2016-2019) of spring barley varieties bred in different years by the farmers of the Center. The area occupied by spring barley in the Rostov region in 2016-2019 ranged from 315.12 to 406.41 thousand hectares, which was from 6.7 to 8.9% of the total arable land. The average productivity in the region for all the years studied was 2.3 t/ha, varying from year to year from 1.7 t/ha in the dry 2018 year
journal: Grain Economy of Russia