Aim. To conduct immunological monitoring of collection spring barley varieties against pathogens of the most common diseases. To select starting material with a set of valuable features for in breeding for pathogen resistance and productivity in the central forest-steppe of Ukraine.
Results and Discussion. The Erysiphe graminis f. sp. hordei, Bipolaris sorokiniana and Drechslera teres populations were found to be the most widespread in the Central Forest-Steppe of Ukraine. Drechslera graminea, Pyrenophora tritici-repentis Drechsler and Puccinia hordei were not common, and in only waterlogged years their damage intensity amounted to 10-15%. Complex resistance (damage 10.0 %) to three diseases – E. graminis f. sp. hordei, B. sorokiniana and D. teres was identified in the following varieties: Dokaz, Aspekt, Kuburas, Hanka, and STN 115. The recessive genes mlo were shown to be extensively and highly effective against E. graminis f. sp. hordei. Varieties Adonis, Bojos, Aspen, Barke, Class, Eunova, Josefin, Danuta, Breemar, and Madeira were resistant to these genes. Structural analysis performed with varieties of spring barley, which were resistant to disease. The following varieties were superior to the check variety in terms of length, grain number and weight from the main ear: Kuburas, Troychan, Sanktrum, and Yevroprestyzh.
Conclusions. We selected sources of complex resistance to diseases (damage 10.0%): Aspekt, Dokaz, Hanka, Kuburas, and STN 115. The donors of resistance to E. graminis f. sp. hordei (damage 3.5%) are Adonis, Barke, Bojos, Aspen, Сlass, Danuta, Eunova, Josefin, Breemar, and Madeira. The sources of valuable economic features are: by the ear length (9.7-10.2 cm) - varieties Kuburas, Vivaldi, Troychan, Sanktrum, Yevroprestyzh; by the grain number from the main ear (25.5-27.8) - varieties Kuburas, Troychan, Sanktrum, Koloryt, Yevroprestyzh, Danuta, and Eunova; by grain weight from the main ear (1.5-2.0 g) - varieties Kuburas, Vivaldi, Troychan, Sanktrum, Hanka, Koloryt, Yevroprestyzh, Barke, Danuta, Pivdennyi,and Eunova.
