UDC 631.52
DOI 10.36461/NP.2025.74.2.019

INVESTIGATION OF THE ENVIRONMENTAL PLASTICITY OF SPRING BARLEY VARIETIES UNDER THE CONDITIONS OF THE NORTHERN CASPIAN LOWLAND
A.E. Talyshkina¹, Postgraduate, V.A. Shlyakhov¹, Doctor of Agricultural Sciences, Professor,
O.A. Tkachuk², Candidate of Agricultural Sciences, Associate Professor
¹Federal State Budgetary Educational Institution of Higher Education "Tatishchev Astrakhan State University",
Astrakhan, Russia, tel. 8(8512)24-66-52, е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
²Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University", Penza, Russia

The article is devoted to the complex analysis of the environmental plasticity of spring barley varieties in the conditions of the arid climate of the northern Caspian Lowland, where global warming and the increasing frequency of droughts pose significant risks to agriculture. The purpose of the study was to evaluate the adaptation potential of eight barley varieties under the conditions of a special rice crop rotation and in fish pond plots. The field experiments were conducted in the Kamyzyaksky district of Astrakhan region in the period from 2019 to 2023.
The research results showed the dominant influence of weather conditions on yield with a share of 56-59%. The highest productivity was shown by the Vakula variety: in the rice crop rotation, its yield was 4.61 t/ha and in the pond area – 4.49 t/ha. This variety also showed high stability (Sd² = 0.66-0.84) and adaptability (bi = 1.07-1.16), which makes it promising for use in arid regions. Despite its high plasticity (bi = 2.21), the variety Format was the least stable (Sd² = 1.50) and dependent on intensive agrotechnics. The varieties Fedos and Eney UA showed moderate productivity but high stress tolerance.
The proposed approaches contribute to the expansion of barley cultivation area, stabilization of yields and reduction of losses under conditions of increasing climatic changes.
Keywords: barley, variety, arid climate, crop rotation, yield, environmental plasticity.

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