Oats breeding for grain productivity and quality in the Western Siberia subtaiga zone

The aim of the study is to improve the selection methodology of competitive varieties of oats with high quality grain that are adaptable to local environmental factors. The study was carried out in 2013-2020 in the department of northern agriculture of the Federal State Budgetary Scientific Institution "Omsk Agrarian Scientific Center". Research objectives: determination of correlation dependences for yield and cereal quality of grain in the nursery of the first year of study (SP-1) and competitive variety testing (CSI); analysis of the dynamics of yield and grain quality depending on the year of study, nursery and origin. A set of hulled and naked samples of spring oats was studied. It was revealed that the determination of the hulliness, nature, the yield of cereal grain from SP-1 gives in some cases a reliable correlation with similar indicators in the KSI - r > 0.64. The filminess and nature of grain in SP-1 are correlated with the yield of cereals in KSI - r = -0.27… -0.54 and r = 0.25-0.70, respectively. Within each year, the yield of varieties was formed due to the number of grains of the main panicle (r = 0.27-0.80) and the grain mass of the main panicle (r = 0.41-0.87); measure was determined by the number of productive shoots per unit area - r = 0.54. Evaluation of oat samples in SP-1 according to the number of productive shoots and panicle grain mass allows selection of highly productive lines. New breeding line Tr. 17-24 provided an increase in grain yield of 0.36 t/ha to the Orion standard with high homeostaticity (Hom) and a regression coefficient (bi) of more than one. The use of Pamyati Bogachkova, Panfive, Rozmar, Ensiler, IL 85-1538, Texas 65c-306 varieties in hybridization contributes to the improvement of the grain quality of the new breeding material.