Study of correlations between selection traits of oatgenotypes in Akmola region

Abstract

The aim of the present study was to investigate the correlational relationships between valuable agronomic traits of common oat (Avena sativa), important for breeding programs aimed at improving the productivity of agricultural crops. The research was conducted in 2023-2024 on field experimental plots at the A. I. Barayev Scientific and Production Center for Grain Farming. Observations were carried out using biometric measurements of plant height and morphological traits related to productivity. The biological material consisted of 16 oat genotypes. The results were analyzed using correlation coefficients, analysis of variance, multiple regression, and the study of relationships between traits. It was established that productive tillering has a linear relationship with a number of traits, except for the mass and number of grains in the panicle (r = –0.39…0.46). According to the correlation analysis, the following relationships were identified: 1000-grain weight and plant height; seed mass per plant and panicle length (r = 0.38…0.46); productive tillering and seed mass per panicle (r = 0.46). These traits can be effectively used in the breeding process to develop high-yielding oat varieties. According to the results of structural analysis of productive elements, the genotypes featuring a complex of valuable traits were selected: Yarovoy and Fax varieties, as well as the FL 0524 sample. These valuable genotypes can be recommended as sources for increasing productive properties in oat plants.