The research was carried out at the Minino station of the Krasnoyarsk Research Institute of Agriculture in the forest-steppe zone of the Krasnoyarsk Territory in 2022-2024. The purpose of the research is to assess the plasticity and stability of varieties and numbers of seed peas of non-regional and foreign selection to identify the potential of their yield in comparison with Krasnoyarsk. The object of research is seed peas Glyants (Ukraine), SH-95-66 (Bulgaria), Yuldash (Russia, Bashkiria), Ryzhik (Russia, Tyumen), Apostol (Ukraine), NDP-1 (India), Lump (Czech Republic), Phoenix (Denmark), Seppette (France), Salamanca (Germany), Ympala (Canada), K-7178 (Turkey), Thomas (Russia, Tyumen), SH-94-55-1-1-4 (Bulgaria), Otaman (Ukraine) and Radomir standard (Russia, Krasnoyarsk Research Institute of Agriculture). Sowing of the collection of raw material was carried out with a seeder SSFC-7 with a seeding rate of 1.3 million germinating seeds / ha in the first to second decade of May. The area of the plots was 3 m2. The frequency of sowing the standard is every 10 issues of the collection. Harvesting was carried out by direct combine harvester in the full ripeness phase. According to moisture availability, 2022 was insufficiently humidified, 2023 was arid, and 2024 was excessively humidified. Sources of plastic and stable grain yields of varieties and samples of seed peas have been established. Radomir and Thomas were the most plastic according to the index of ecological plasticity, stress resistance, homeostaticity and yield variation. Pea varieties Radomir, Thomas and Apostol were distinguished by a set of stability indicators: PIC, breeding value and stability index. For breeding to increase the yield of pea grains, as stability increases, it is recommended to use varieties Thomas, Phoenix, Lump and sample SH-95-66.
seed peas (pisum sativum l.), yield, plasticity, stability, stress resistance, homeostaticity
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