Abstract
One of the factors decreasing yield and grain quality of soft spring wheat is fungal disease damage including leaf rust and stem rust (Puccinia graminisand Puccinia tritici-na). The most economical and safest way to control these diseases is the development of new resistant varieties with high and stable yields and high expression of yield ele-ments. For this purpose, 13 European varieties of new generation with positive complex of economically valuable characters were studied in the forest-steppe of the Altai Region’s Ob River area from 2018 through 2020. This pa-per describes the weather conditions of the experiment years and experimental techniques. Over the years of the study, mid-ripening (3.76-4.49 t ha), middle-late (3.58-4.59 t ha) and mid-early varieties (3.50-4.03 t ha) were charac-terized by the highest yields. As a result of study, the varie-ties from different groups of ripeness with stable and high yields (+11.0-28.2% to the appropriate standards) and re-sistance to fungal infections (from 0 to 20%) were identi-fied: Buran, Tybalt, WW-4, Quintus, Silach, Libertino and Licamero. The absolute resistance to rust diseases and moderate yield regarding the standards was shown by Ex-tra, WW-3 and Aquilon. The varieties Grenada, Start and Silach revealed high and stable gluten content levels and high grain-unit values corresponding to the requirements of strong wheat; the variety WW-3 had a high grain protein content level.
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