Comparative characteristics of the durum wheat newest samples based on a complex of agrobiological characteristics

In 2020–2022 at the Dagestan experimental station of the VIR branch 30 samples of durum wheat of different ecological and geographical origins (Russia, Austria, Mexico, Syria, Egypt) were studied under irrigation conditions under winter sowing. The k-66674 Odari, k-67482 Yarina (Krasnodar Territory) and k-32453 Derbentskaya Chernokolosaya (Republic of Dagestan) varieties were sown as standard samples. Over three years of study, a field and laboratory assessment were given for the following characteristics: length of the growing season, resistance to fungal diseases (powdery mildew, brown and yellow rust) and lodging, grain weight per unit area (1 m²), weight of 1000 grains, number of grains in one ear and the mass of grain from one ear. The varieties are recommended as sources of breeding valuable traits (earliness, productivity, large grain size) for further use in breeding and genetic programs for the creation of new adaptive varieties.