STRESS-RESISTANT, WITH A GOOD SET OF BASIC ECONOMIC CHARACTERISTICS, THE WINTER WHEAT VARIETY TERSINKA

Abstract

A new variety of soft winter wheat, Tersinka, has been developed in the North Caucasus Federal Scientific Agrarian Center of the Stavropol Region. The objective of research is to create adaptive, stress-resistant genotypes of universal wheat with a set of economic traits for cultivation using intensive and medium-intensive technologies in the conditions of the North Caucasus, Lower Volga and Central Black Earth regions of Russia. New varieties are bred using modern methods of classical, haploid and marker selection. It is based on intraspecific, complex, stepwise hybridization and, starting from the third generation of hybrids (F3), continuous, targeted, individual selection of new genotypes is carried out based on the traits of the model of universal wheat varieties of varying intensity that we have developed. The experiment was carried out on fallow, the method of variety placement was systematic. In the last crossing, the Don 95 variety was used as the maternal form, the Verta variety served as the paternal form. The Tersinka variety belongs to the Erythrospermum variety. During the years of study (2021–2023), the new variety always reliably exceeded the Grom standard in grain yield. On average, this excess over the standard was 1.67 t/ha. According to the growing season, Tersinka belongs to mid-season varieties. The new variety has a higher productive tillering. It is distinguished by high drought and heat resistance and reliably exceeds the standard in terms of resistance to these stresses. According to flour-baking indicators, it belongs to strong wheat improvers. It is distinguished by high field resistance to biotic stressors and a complex of major diseases.