Abstract
The object of research is the boneless stalk (Bromopsis inermis L.). It is a widespread forage crop of perennial grasses, which is cultivated in almost all soil and climatic zones. The purpose of our research was to assess the adaptability of the samples of boneless seedling in terms of seed yield in a control test in the taiga zone of the Tomsk region of the Russian Federation. The creation of adaptive varieties remains the most affordable means of intensification in crop production. The research area is characterized by extreme climatic and edaphic conditions, which makes it possible to evaluate breeding samples for adaptability. Field experiments are based on the technology generally accepted for the cultivation of perennial grasses in Western Siberia. The selection of perennial grasses in our institution is carried out in accordance with the methodological guidelines of the VIC. The involvement of wild samples in the breeding of perennial grasses allows them to use their high adaptive potential. This article discusses the results of the study of varietal samples in the control nursery of sowing in 2019. The standard was the Langepas variety. In 2021, the conditions turned out to be optimal for the formation of a high seed yield, in 2022 they were unfavorable. To assess the adaptive potential of the samples, a method was used to identify the potential productivity and adaptability of varieties and breeding forms according to the "yield" indicator. The characteristic of plant adaptability to environmental conditions is expressed by adaptive potential. To assess the adaptability of the samples, data for three years with contrasting conditions are presented. The range of variation of the coefficients of adaptability of the studied samples in the conditions of the taiga zone turned out to be quite wide (0.64...1.48). The standard Langepas variety in the conditions of the taiga zone showed an adaptability coefficient of 1.09. Samples with high adaptive potential of SGP-9 and K-14293 were identified. They are used as a starting material in the breeding of the boneless stalk.
Published Version
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