Dependence of the corn grain yield and harvesting humidity on the SCC in the conditions of the north-west of the Volgograd region

For three years (2019–2021) in the north-west of Volgograd region, system ecological variety testing, corn hybrids various groups ripeness selection Russian breeding institutions were studied, from early group, FAO 100-139, to medium-late 300. In different humidification years, dependence grain yield and harvesting humidity on SCC was established. dry year 2020, GTK – 0.47, there lowest all ripeness. With an increase increased slightly: 100–139 (2.6 t/ha), 140–169(2.8 t/ha)…. 200–249 (3.6 t/ha). The same pattern persisted moderately 2019, GTC - 0.83, group (3.8 t/ha) a maximum value 5.5 t/ha 250–299. wet 2021, -1.8, varied 4.8 100–139, 6.3t/ha. It revealed that low 13.9% 16.3%, with maturation period 170–199 300, this indicator direct progression, 17.9 22.4%. dry, 2019 harvest higher: (15.4%) .. 300 (24.6%). maturity 16.0% ... 24.0% noted index for lower than years. During research, highest (2.5), 140–169, 170–199, (2.3). later blocks, coefficient lower.., 250–299 (2.2), (2.1).