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https://doi.org/10.26898/0370-8799-2024-12-4
The results of the tests of parental lines of corn hybrids to determine the optimal schemes of placement and plant density are presented. The research was conducted in the forest-steppe zone of the Voronezh region in 2022–2023. The parental lines of the early maturing corn hybrids Voronezhsky 130 MV, Voronezhsky 135 SV, Voronezhsky 145 MV, Voronezhsky 150 SV, Voronezhsky 171 SV, Voronezhsky 182 MV served as the objects of experiments. Agronomic measures were in line with generally accepted norms for the zone. The results of analysis of variance showed that year conditions, genotype, placement pattern and stand density influenced the yield of the female parent components (p = 0.001). Grain moisture at harvest was determined by the same experimental factors, with environmental conditions affecting the values only for the second sowing date group (p = 0.001), while no significant effect of ratios was observed. Thickening of crops to 70,000 plants/ha led to an increase in the yield (0.36–0.75 t/ha) and grain moisture at harvest (0.3–1.2%) compared to the plant density of 50,000 plants/ha. The placement pattern 6 : 2 increased female parent components performance (0.44–0.66 t/ha) unlike the scheme 4 : 2. The combined effect of the parameters identified during the study was determined to be optimal for the parental components of the hybrids and recommended for use in commercial seed production.
Junior Researcher
13, Chayanova St., Opytnoi Stantsii VNIIK, Khokholsky District, Voronezh Region, 396835
Candidate of Science in Agriculture, Lead Researcher
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Chebotarev D.S., Orlyanskaya N.A. Seed productivity of parental lines of the early maturing corn hybrids. Siberian Herald of Agricultural Science. 2024;54(12):32-39. https://doi.org/10.26898/0370-8799-2024-12-4
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