Our research goal was to select corn hybrids of domestic selection suitable for grain and herbage production in the conditions of Primorsky krai. The research was carried out on the experimental plots of the laboratory of selection and primary seed production of corn of the Federal Scientific Center of Agrobiotechnology of the Far East named after A. K. Chaika in 2020–2022. On average, over three years, hybrids of corn of domestic breeding were isolated: Mashuk 220, Newton, Baikal, Mashuk 171, which form a grain yield of 7.0–8.0 t/ha in terms of 14 % moisture. Based on the calculation of the breeding index, hybrids were selected that combine high yields with low harvesting moisture: Mashuk 220 – 0.32, Baikal – 0.30, Mashuk 171 – 0.29, Newton – 0.27, K-165 – 0.32. Of practical interest are hybrids that have shown the highest yield of green mass in the experiment (t/ha): Newton – 50.5, Baikal – 50.0, Mashuk 220 – 46.6, Mashuk 171 – 46.1, Mashuk 175 – 45.4, Mashuk 172 – 41.2. The high yield of dry matter per hectare was provided by the following hybrids (t/ha): Baikal – 19.7, Newton – 19.6, Mashuk 185 MV – 17.5, Mashuk 171 – 17.3. Hybrid Sibirskii 135 had the lowest yield of dry matter (8.4 t/ha). The correlation analysis has shown that the yield of green mass is in a medium negative relationship with the dry matter content in plants (r = –0.62), and in a high relationship with the harvest moisture content of grain (r = 0.87), the collection of dry matter (r = 0.94), grain yield (r = 0.83), plant height (r = 0.77) and cob attachment height (r = 0.67). The studies carried out made it possible to identify domestic corn hybrids that are promising for growing for grain and green fodder in the conditions of Primorsky krai.

Bogdan Polina M., Danilenko Irina N., Kraskovskaya Natalya A.

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