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

Zlatson

Sunflower Helianthus annuus L.
A linoleic hybrid used for oil. High-yielding, resistant to virulent races of downy mildew

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

Registration year - 2014. Recommended zones of cultivation: Steppe and Forest-Steppe of Ukraine.

Mid-early. The growing period is 110-113 days.

The plant height is 170 cm. The calathidium is dome-shaped, with a diameter of up to 23 cm. The hybrid is highly resistant to lodging and shedding. It is fairly resistant to drought.

High resistance to downy mildew, tolerance to head rot.

The husk content is 23%. The 1000-seed weight is up to 60 g. The oil content in seeds is 48.4%.

The yield potential is 4.73 t/ha. The yield in the demonstration field of the Plant Production Institute named after V.Ya. Yuriev is 3.83 t/ha; the yield in the demonstration field of Poltava State Agricultural Research Station named after MI Vavilov is 3.12 t/ha.

The recommended pre-harvest plant density is 50,000-55,000 plants/ha.

Seed production peculiarities. The parents in hybridization plots are sown in two stages. The female line is sown after the emergence of the male line seedlings.

The female/male row ratio in hybridization plots can be 6:2; 8:4; 10:2; or 12:4.

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