PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by PIONEER HI-BRED INTERNATIONAL
also searched as: ф1004б
10 August 2026
The line was obtained by backcrossing and pedigree methods based on lines T0001LG and 33301TG using CMS PET1 cytoplasm. The plant possesses resistance to Express group herbicides (tribenuron-methyl).
Morphologically, the line is characterized by yellow pollen, green bracts, a convex nodding head, and the absence of anthocyanin coloration of the hypocotyl. The seeds are dark black with gray stripes, have a narrow-ovate shape and a curved cross-section.
2 jurisdictions
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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PIONEER HI-BRED INTERNATIONAL
Nearby in the species list PH 510B, PH 536B, PH 552B, PH-BC-1-167, PH-BC-1-40, PH-BC -1-74, PH BC 174PR, PH BC 2 67, PH-BC-2-91, Ph1004a, Ph1005b, Ph1015b, Ph1019b, Ph1021b, Ph1031a, Ph1031b, Ph1032a, Ph1032b, Ph5001r, Ph5002r