PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by PIONEER OVERSEAS CORPORATION
also searched as: т0637хг
10 August 2026
The line is homozygous dominant for the single-head trait. A sterile analogue of this line was obtained as a result of six generations of backcrossing using CMS PET1 cytoplasm.
This material is a breeding line used for the creation of hybrids and is not intended for mass commercial sowing; therefore, detailed morphological descriptions for it are not published.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Records are sourced from official registry publications. Data sources and legal status
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Helianthus annuus L. · Sunflower
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Nearby in the species list T0455lm, T0456lm, T0504lg, T0511lf, T0511lg, T0514lg, T0527hg, T0533hg, T0605lg, T0632hg, T0739hg, T0757lm, T0788hm, T0799hm, T0831lf, T0831lg, T0833hf, T0833hg, T0864lm, T0866lm