Adaptability of accessions of filmy oats in the collection nursery
https://doi.org/10.30766/2072-9081.2023.24.5.749-756
Abstract
It is urgent to study the ecological and adaptive ability of oat samples in specific growing conditions to obtain high yields and resistance to biotic and abiotic stresses. In 2020-2022 in the conditions of Kirov region 47 samples of oats (standard - variety Krechet) were studied. Unfavorable conditions for the formation of yield were in 2021 (Ij = -1.2), relatively favorable – in 2020 (Ij = +0.4) and 2022 (Ij = +0.8). Yield of samples varied among the years, with the coefficient of variation varying from 2.9 % (к-14221 Рс 60, Canada) to 75.4 % (к-15536 UFRGS-11, Brazil). Twenty-four accessions, including к-15547, к-14649 (Russia), к-15464 (Kazakhstan), к-15533, к-15545, к-1554 (Brazil), к-15583, к-15585 (Sweden), etc., were responsive to improvement of growing conditions (bi>1). The amplitude of productivity changes is characterized by the stability index (Si 2 ). Stability of yield of samples к-15530 UFRGS-2, к-15541 UFRGS-17 (Brazil), к-13658 Рс 35, к-14221 Рс 60 (Canada) varied within 0.04...0.79. Samples from Canada (к-14221, к-13670), Brazil (к-15530, к-15541) and Sweden (к-15586) were the most stress tolerant. Genetic flexibility shows the reaction of plants to growing conditions, the maximum values of the trait (433 ...527 g/m2 ) were observed in samples к-15542 UFRGS-18 (Brazil), к-14648 Argamak (Russia), к-14397 Рс 67 (Canada), к-15583 Mutant 230, к-15585 Mutant 261 (Sweden). According to the results of the tests, 11 samples were selected for obtaining source material with the required parameters. The samples к-15541 UFRGS-17, к-15542 UFRGS-18, к-13662 Pc 45, к-14668 Pc 54, к-13187 Pc-56, к-14431 Pc 59, к-13658 Pc 35, к-14221 Pc 60, к-14396 Pc 64, к-14397 Pc 67 are recommended for inclusion in breeding programs. These samples are characterized by adaptability to varying growing conditions according to the "yield" trait.
Supporting agencies: the research was carried out under the support of the Ministry of Science and Higher Education of the Russian Federation within the state assignment of Federal Agricultural Research Center of the North-East named N. V. Rudnitsky (theme No. FNWE-2022-0009). The authors thank the reviewers for their contribution to the peer review of this work.
About the Authors
N. V. Krotova
Federal Agricultural Research Center of the North-East named N. V. Rudnitsky
Russian Federation
Russian Federation
Nadezda V. Krotova, PhD in Agriculture, senior researcher, the Laboratory of Oat Breeding
166-a Lenin Street, Kirov, 610007
G. A. Batalova
Federal Agricultural Research Center of the North-East named N. V. Rudnitsky
Russian Federation
Russian Federation
Galina A. Batalova, DSc in Agriculture, professor, academician of RAS, chief researcher, deputy director
166-a Lenin Street, Kirov, 610007
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Review
For citations:
Krotova N.V., Batalova G.A. Adaptability of accessions of filmy oats in the collection nursery. Agricultural Science Euro-North-East. 2023;24(5):749-756. (In Russ.) https://doi.org/10.30766/2072-9081.2023.24.5.749-756
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