THE PLANT PRODUCTION INSTITUTE named after V.YA. YURIEV
National Academy of Agrarian Sciences of Ukraine

Haidamak

Corn Zea mays L.
An early-ripening, highly adaptable, intensive, high-yielding hybrid. Rapid initial growth

Originator - Plant Production Institute named after V.Ya. Yuriev of NAAS.

Included in the Register - 2019.

Recommended zones of cultivation: Steppe, Forest-Steppe, Woodlands.

Variety - ssp. semindentata.

The plant height is 220-230 cm. The cob attachment height is 90-95 cm. The leaf number per plant is 14-15. The cob length is 24-26 cm. The number of grain rows is 14-16. The grain output is 82-84%. The cob rhachis is red. The 1000-seed weight is 270-275 g.

Ripeness group – early-ripening FAO 190. The "seedlings-full maturity" period is 100-105 days. The initial growth is rapid. Cold tolerance is high. Drought resistance is high. Resistance to loose smut is high. Resistance to boil smut is high. Resistance to stem rot is high. Resistance to corn borer is high.

The potential grain yield is 11.0-11.5 t/ha. The recommended harvest density: 60,000-62,000 plants/ha – in the Steppe, 62,000-67,000 plants/ha – in the Forest-Steppe, and 65,000-68,000 plants/ha – in the Woodlands. The harvest water content is 16-18%. The protein content in grain is 9.0%. The starch content is 76%.

Seed production peculiarities. The seed production of this hybrid is based on M-type sterility according to the complete restoration algorithm, without removing panicles. The optimal sowing arrangement for parents in hybridization plots is 12:4 or 6:2. Hybridization plots require intensive farming, weed control and nutrition.

When grown by intensive farming techniques, the seed yield amounts to 3.0-3.5 t/ha.

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