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Post a Comment ECOLOGICAL-GEOGRAPHIC APPROACHES TO THE STUDY OF GENETIC DIVERSITY OF BARLEY AND OAT FROM THE VIR COLLECTION
- Authors: Loskutov I.G.1, Novikova L.Y.1, Kovaleva O.N.1, Ivanova N.N.1, Blinova E.V.1, Belskaya G.V.1
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Affiliations:
- Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
- Issue: Vol 18, No 1 (2020)
- Pages: 89-102
- Section: Genetic basis of ecosystems evolution
- URL: https://journals.rcsi.science/ecolgenet/article/view/16128
- DOI: https://doi.org/10.17816/ecogen16128
- ID: 16128
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Abstract
Under conditions of climate change, the assessment of the stability of genotypes is of particular importance. To conduct directed selection of genotypes with a narrow or broad reaction rate, it is necessary to assess their stability already in the early stages of breeding. The aim of the study was to study the stability of breeding significant traits of oat and barley samples in contrasting ecological and geographical conditions. 25 oat samples and 25 barley samples were studied over 3 years under contrasting conditions in St. Petersburg and the Tambov Region. Varieties are characterized by average values of economically valuable traits and genotype regression coefficients on the influence of the bi environment according to Eberhart and Russell. The most sensitive to a change in the ecological and geographical situation were the durations of the germination–heading, germination–harvest periods and grain yield. These characters varied to a greater extent depending on the cultivation conditions than on the genotype. According to regression coefficients for environmental conditions, significant differences in genotypes were only in yield. Contrasting groups of varieties were distinguished by regression coefficients on environmental conditions, genotypes with high productivity. The durations of “germination–heading”, “germination–harvest”, the plant height reacted to the change in the environment the same in different varieties. The duration of the growing season was determined by the sum of effective temperatures above 15 °С. The reduction of the growing season in both crops was 3 days with an increase in the sum of effective temperatures above 15 °С by 100 °С.
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##article.viewOnOriginalSite##About the authors
Igor G. Loskutov
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Author for correspondence.
Email: i.loskutov@vir.nw.ru
ORCID iD: 0000-0002-9250-7225
SPIN-code: 2715-2082
Scopus Author ID: 8619012600
ResearcherId: D-5238-2013
Doctor of Biological Sciences, Chief Researcher, Acting Head of the Department of Genetic Resources of Oats, Rye, Barley
Russian Federation, St. PetersburgLyubov Yu. Novikova
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Email: l.novikova@vir.nw.ru
ORCID iD: 0000-0003-4051-3671
Doctor of Agricultural Science, Leading Researcher, Acting Head of the Department of Automated Information Systems for Plant Genetic Resources
Russian Federation, St. PetersburgOlga N. Kovaleva
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Email: o.kovaleva@vir.nw.ru
ORCID iD: 0000-0002-3990-6526
Candidate of Biological Science, Leading Researcher, Department of Genetic Resources of Oats, Rye, Barley
Russian Federation, St. PetersburgNadezhda N. Ivanova
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Email: n.ivanova@vie.nw.ru
ORCID iD: 0000-0002-4686-1338
Senior Researcher, Department of Genetic Resources of Oats, Rye, Barley
Russian Federation, St. PetersburgElena V. Blinova
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Email: e.blinova@vir.nw.ru
ORCID iD: 0000-0002-8898-4926
Candidate of Agricultural Sciences, Senior Researcher, Department of Genetic Resources of Oats, Rye, Barley
Russian Federation, St. PetersburgGalina. V. Belskaya
Federal Research Center “N.I. Vavilov All-Russian Institute of Plant Genetic Resources”
Email: belskaigalin@yandex.ru
ORCID iD: 0000-0002-8644-3501
Candidate of Agricultural Science, Senior Researcher, Head of the Laboratory of Cereal Crops
Russian Federation, St. PetersburgReferences
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