SPRING BARLEY HYBRIDS ASSESSMENT FOR BIOLOGICAL AND ECONOMIC FEATURES UNDER DROUGHT CONDITIONS OF NORTHERN AND CENTRAL KAZAKHSTAN

The presented study comprehensively assessed barley (Hordeum vulgare L.) hybrid populations of F3– F5 generations, comparing with the standard cultivars, Karagaydinckiy-5 and Astana-2000. crossing isolated cultivars international collection (obtained from Australia) proceeded under intense continental climatic conditions Northern Central Kazakhstan. Barley promising selected populations, i.e., Macguarie × Arna, Flinders Tselinniy golozerniy, Omskiy showed early maturity (79–83 days), superior plant height (34.4–69.5 cm), enhanced 1000-grain weight (56.6 g, 56.4 58.0 respectively), viz., Buloke Karagandinckiy-6, Fathom Donezckiy-9, Onslow Karabalykckiy-43, for productivity (1 m2) at 184 116.4 140.1 respectively. Identified in were correlation its structural elements, particularly grain per ear (r = 0.486) 0.828), mainly determining productivity. determination features variation a significant excess (more than 20%) varying levels. level variability mass has shown lines, Karagandinckiy-5, Karagandinckiy-10, Admiral Karabalykckiy-150, Donezckiy-9. In grains, protein content ranged 10.45% to 16.63%, over cultivar resulted lines Franklin Sabir (16.63%), Anodolu-86 Donezckiy-8 (16.04%), golozerniy (15.31%). Based on an average years, drought-resistant highproductivity Karagadinckiy-6, (Karagandinckiy-5 Аrna), Bass Granal CMB93H-805-F-1Y-1M-OY-17TRS-OAP, CMB89A-380-1M-OGH-105GH-1B-1OY-OAP- 19AP-OAP. These genotypes can benefit development highyielding through future breeding programs prevailing environmental conditions.