N. M. Terekhin, L. N. Mishchenko, M. V. Terekhin, N. A. Karpova
Far Eastern State Agrarian University, Blagoveshchensk, Russia
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Volume 25 No. 1
Date of paper submission: 29.05.2024, date of review: 13.10.2024, date of acceptance: 01.11.2024
Published: 01/31/2025
Abstract. In order to obtain stable and sustainable yields, it is necessary to create and introduce into production varieties with high potential of economically valuable traits adapted to local cultivation conditions. Evaluation of the parameters of quantitative variability and correlation-regression dependence of yield and grain quality indicators of soft spring wheat is an urgent task for crop science. The purpose of the research was to study the dependence of compensatory ability and stress resistance on the magnitude of technological parameters – their minimum, maximum and average values. Methods. To study the correlation relationships, 32 new varieties of spring soft wheat were taken from the nursery of competitive variety testing for three years: 2021, 2022, 2023. Sowing was carried out with the SKS-9a seeder at the optimal time on clean fallow, harvesting was carried out with the “Sampo” combine during the period of full maturity. Laboratory technological assessment of varietal samples was carried out according to GOST 33996-2016 methods. Scientific novelty. The results of a study of the compensatory ability and stress resistance of varieties grown in the Amur region, which depend on the magnitude of technological parameters – their minimum, maximum and average values, are presented. The effect of increasing the basic technological and biochemical qualities of new varieties of soft spring wheat in the breeding process was established. Results. To increase the stress resistance of varieties, it is necessary to pay attention to the optimization of their technological qualities, such as vitreousness, nature, weight of 1000 grains and gluten content in the grain. An increase in the values of these parameters can contribute to an increase in the compensatory ability of varieties and, ultimately, to an increase in their stress resistance. An increase in the number of drops (alpha-amylase activity) It also has an effect on the stress resistance of varieties. Therefore, it is necessary to carefully balance all these factors when developing and improving varieties in order to achieve optimal stress resistance.
Keywords: variety, weight of 1000 grains, nature, vitreous, gluten, alpha-amylase, number of drops, breeding, hybrids, zoning, compensatory ability
For citation: Terekhin N. M., Mishchenko L. N., Terekhin M. V., Karpova N. A. The impact of changes in the technological qualities of grain on the stress resistance and compensatory ability of spring soft wheat varieties in the conditions of the Amur region. Agrarian Bulletin of the Urals. 2025; 25 (01): 31‒39. DOI: https://doi.org/10.32417/1997-4868-2025-25-01-31-39 (In Russ.)
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