Phenotyping of lentil (Lens culinaris L.) breeding lines in terms of productivity in the Omsk oblast

¹ Omsk State Agrarian University named after P.A. Stolypin, 644008 Omsk, Russia
² Russian Research Institute for Sorghum and Maize "Rossorgo", 410050 Saratov, Russia

^* Corresponding author: tv.marakaeva@omgau.org

Abstract

The article presents the results of studying the main elements of seed productivity in 15 breeding lines of F6-7 generations of lentils obtained from interspecific crossings of varieties Aida (Russia), Vekhovskaya (Russia), Vostochnaya (Russia) and Shyraily (Kazakhstan). The purpose of the study is to research the phenotypic variability of lentil breeding lines according to the elements of the crop structure and select valuable genotypes as sources of productivity to create varieties adapted to the conditions of the region. Phenotyping of the breeding material was carried out in the field and laboratory conditions in 2020-2022 at the training and experimental field of the Omsk State Agrarian University named after P.A. Stolypin. During the study period, very dry climatic conditions developed in 2020 (HTC = 0.62) and 2021 (HTC = 0.68), slightly dry - in 2022 (hydrothermal coefficient = 1.02). The ecological plasticity of the breeding lines was assessed by the value of the intensity and stability indicators of the stability index.The ecological plasticity of the breeding lines was assessed by the value of the intensity and stability indicators of the stability index. As a result, it was found that 11 genotypes belong to the group of varieties of intensive type, 4 - semi-intensive. Of the 15 lines, only 11 show stable seed productivity in all weather conditions, and 4 are characterized as unstable. Based on the research, valuable genotypes were selected that will be used as sources of seed productivity in further breeding and the creation of new adapted, high-yielding varieties of lentils in the region.