PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Dobroudja Agricultural Institute - General Toshevo (BG)
also searched as: 12002 р
10 August 2026
The line was obtained by the embryo culture method by exposing immature zygotic embryos of the parental restorer line R 2574 to gamma radiation. A cesium-137 isotope was used as the radiation source at a dose of 8 Gy for 1 minute.
This line is specialized genetic material developed to increase the yield and oil content of hybrids. Hybrids created using this line possess resistance to broomrape (Orobanche cumana) race F and full resistance to downy mildew (Plasmopara helianthi) races 300 and 700.
1 jurisdiction
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The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 905/61
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Same species
Helianthus annuus L. · Sunflower
Soper, John
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Revol Benoit
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Oliv"ie Ladsus
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Shevel` Ihor Vasyl`ovych
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Nearby in the species list 1100L, 1111 A, 113 R, 114A, 1179A, 11B, 11R, 11V, 12/05, Mykolaivskyi krupnonasinnyi, 12001 R, 12003 R, 1234, 125, 125 A, 125 B, 127B, 12833R, 12B, 12F04, 12I11