Ecological plasticity and stability of spring vetch (tare) under conditions of the West Siberian region

Abstract

The results of evaluating the yield and adaptive properties of the eight varieties and lines of spring vetch (tare Vicia sativa L.) are presented. Kamalinskaya 611 (standard), Novosibirskaya, Baikalskaya × Lgovskaya 34, Baikalskaya × G-252, E-1280, 4604/1-2, GC-964, and Kamalinskaya 611 × Novosibirskaya varieties were included in the study. The productivity of vetch plants in the nursery of preliminary varietal trials is evaluated and the most productive, plastic, stable and adapted samples are identified. The study was conducted in 2017-2019 in the forest-steppe conditions of the Priob'ye region (Novosibirsk region). The most favorable for the formation of green matter yields was 2017, for grain productivity - 2019. The variation in green matter yields ranged from 25.20 (Novosibirskaya in 2018) to 40.70 t/ ha (Kamalinskaya 611 × Novosibirskaya in 2017), and seeds from 1.50 (Kamalinskaya 611 in 2017) to 3.16 t/ha (Kamalinskaya 611 × Novosibirskaya in 2018). Baikalskaya × G-252 and Kamalinskaya 611 × Novosibirskaya samples stood out with the lowest variability and the highest homeostasis in the formation of grain yield, while the lines E-1280 and 4604/1-2 stood out in terms of green matter yield. Baikalskaya × G-252 (by grain yield); Baikalskaya × Lgovskaya 34 (by biomass) and Kamalinskaya 611 × Novosibirskaya (by grain yield and biomass) were selected for breeding value. Among the most responsive to improving conditions and stable are Baikalskaya × Lgovskaya 34 and Kamalinskaya 611 in terms of grain productivity and biomass yield - Kamalinskaya 611 × Novosibirskaya.