PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural
also searched as: ромсун хс 90
10 August 2026
The hybrid was used in scientific experiments studying irrigation regimes, the influence of the soil nematode Meloidogyne javanica on plant development, and comparative biomass productivity. Information regarding origin, parental lines, and commercial purpose is absent from the sources.
In comparative trials with low soil moisture content, the hybrid showed higher leaf transpiration intensity and water potential compared to some other samples. When evaluating dry matter accumulation and bioenergetic potential, the variety was inferior to other participants in the studies.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 217659
Records are sourced from official registry publications. Data sources and legal status
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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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ACADEMIA DE STIINTE AGRICOLE SI SILVICE
Helianthus annuus L. · Sunflower
AC.CIENCIAS AGRICOLAS
Helianthus annuus L. · Sunflower
ACEITES BORGES PONT, S.A.
Nearby in the species list Romanella, Romans, Romantyk, ROMERO, Romil, Romina, Romsum HS 301, Romsum HS 52, Romsum HS 90, Romsun 52, Romy, Rona, Rondo, Ronsar, Roquette, RORf69, RORf69 SU, ROS1001, ROSALEN, Rosario