Affiliation:
1. Agricultural Research Center «Donskoy»
Abstract
Relevance. The problem of improving the gross harvest of barley grain in the country and its stabilization can be solved by developing qualitatively new, highly productive varieties and introducing them into production. To develop winter barley varieties that meet the modern requirements of domestic agricultural producers, a wide range of sources of economically valuable traits and properties is of great necessity. The purpose of the research is to evaluate the collection samples of winter barley in different weather conditions in the years and identify the most adapted to local meteorological and soil conditions for use in the breeding process. Methods. The study was carried out in the research crop rotation conducted by the department of barley breeding and seed production of the FSBSI «ARC “Donskoy”» (2021–2023). The objects of the study were 134 varieties of local and foreign breeding. Sowing was carried out at the optimal time for the area in a single repetition. According to the study results, there were identified new sources to increase productive head, grain size, grain weight per head, grain content in a head, productivity, quality indicators of grain (protein percentage in grain and lysine content in protein), as well as sources of early maturity, which are recommended for introduction into hybridization programs. Results. During the years of research, a positive effect on the yield of 1000 grains was found to an average degree (r = 0.46 ± 0.00), lodging resistance (r = 0.32 ± 0.00) and the number of productive stems per 1 m2 (r = 0.33 ± 0.00).