DOI 10.36461/NP.2024.71.3.019
UDC 633.63+631.82

ADAPTIVE CAPACITY OF WINTER WHEAT VARIETIES IN THE CONDITIONS OF FOREST-STEPPE OF THE MIDDLE VOLGA REGION
N.I. Sigov graduate student
V.V. Koshelyaev, Doctor of Agricultural Sciences, Professor;
I.P. Koshelyaeva, Doctor of Agricultural Sciences, Professor
Penza State Agrarian University, Russia, tel. 8(8412) 62-83-73, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article investigates the adaptive capacity of winter wheat varieties cultivated in the Middle Volga region. The aim of the work was to identify features of manifestation of adaptive capacity and to determine ability of varieties to fully realize local soil and climatic resources and applied technologies. The following tasks were solved: 1. To identify the adaptive capabilities of winter wheat varieties in changing weather conditions; 2. To determine the adaptive properties of varieties depending on technological methods; 3. To evaluate responsiveness of varieties to rise of level of technology intensification.
As a result, it was found that the varieties Clavdia 2, Fotinha and Lilith reduced yields to a lesser extent under unfavorable growing conditions. Accordingly, they are characterized by higher stability. Lilith and Fotinha varieties were distinguished by higher stress resistance. The varieties Timiryazevka 150, Bezostaya 100, Vyuga and Vertikal were characterized by potentially highly productive forms, under favorable conditions, effectively realizing technological resource. The varieties Timiryazevka 150, Bezostaya 100, Vyuga and Vertikal were distinguished by the best flexibility to improve plant nutrition with increased intensification of cultivation technology. Varieties Timiryazevka 150, Vyuga, Vertikal, Lilith and Fotinha have shown themselves as forms of an intense type.
Keywords: winter wheat, variety, adaptive capacity, technology, intensive form.

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