Affiliation:
1. Federal Agricultural Research Center of the Nort-East named N. V. Rudnitsky
Abstract
In 2015-2021, 58 collection pea variety samples of various morphotypes and ecological and geographical origin were studied in the field and laboratory conditions of the Falenky Breeding Station (Kirov region) in order to identify sources of breeding valuable traits for the creation of new varieties. For leafy morphotype samples the Krasnoufimskij 93 variety was taken as standard, for leafless morphotype – Falyonskyj usatyj. According to meteorological conditions, the years of the research contrastingly differed: the hydrothermal coefficient (HTC) ranged from 0.82 (2016) to 2.57 (2019). The highest yield on average for the collection was formed in 2015 (HTC = 1.59) – 358±15 g/m2), the lowest in 2021 (HTC = 0.84) – 126±4 g/m2. The studied set of variety samples was mainly represented by medium-ripened (70-75 days on the average over the years of the research), medium-productive (201-250 g/m2) samples with a seed size of 150-250 g. There have been identified genotypes that exceeded the grain yield of standard varieties by 10% or more: Tigra (Germany) – 353 g/m2, Stabil (Austria) – 336 g/m2, Vyatich (Russia) – 308 g/m2, Flora (Russia) – 286 g/m2, G-21594 (Russia) – 283 g/m2, etc. Variety samples with high indicators of productivity elements have been identified. The highest number of fertile nodes (4.4-4.6 pcs.) was noted in leafy samples Verkholuzskaya, Ryabchik (Russia), Segio (the USA); the number of beans (6.0-6.1 pcs.) – in G-21594, Vyatich (Russia.), Ps var vittelinum – (Germany); the number of grains (24.1-27.1 pcs.) – in the variety Verkholuzskaya, G-21594, D-13560 (Russia). A higher seed productivity (5.2-5.6 g) was noted both in leafy morphotypes Grana (the USA), Omega (Moldova) and in leafless morphotype Stabil (Austria). It was found that the studied genotypes had high variability in grain yield, the number of fertile nodes, beans and grains per plant, the mass of 1000 seeds changed slightly. The statistically significant influence of the duration of the growing season on the number of fertile nodes (r = 0.27...0.60) and the number of beans per plant (r = 0.26...0.61) was established.
Publisher
FARC of the North-East named N.V. Rudnitskogo
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