Skip to content

RP 521

Terminated

Helianthus annuus L. Sunflower · Agricultural · bred by RHONE POULENC AGROCHIMIE (FR)

also searched as: рп 521

Variety description

10 August 2026

The hybrid is versatile and intended for cultivation using Clearfield and Sumo technologies. The vegetation period ranges from 103 to 108 days. Plant height varies within 160–175 cm.

The plant possesses high resistance to lodging, drought, heat, and cold. The hybrid is resistant to 6–7 races of broomrape and is tolerant to downy mildew, white rot, dry rot, charcoal rot, as well as Fusarium.

The yield potential reaches 5.5 t/ha, and seed oil content is in the range of 49–51%.

Sources5
  • Loading…

Countries of admission

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.

terminated no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder
RHONE POULENC AGROCHIMIE (FR) 67 Developed the variety
Applicant
Limagrain Genetics International SA (FR) 41 Submitted the application to the register
Rights holder
Limagrain Genetics International SA (FR) 41 Holds the rights to the variety

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

France № 9501
Terminated
  1. Application filed 12 April 1990
  2. Registered 22 February 1994
  3. Entry closed 31 October 1997

Records are sourced from official registry publications. Data sources and legal status

Found an error in the record?

The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.

This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Same species

Other varieties: Sunflower

All 15 159 varieties of species

Helianthus annuus L. · Sunflower

Soper, John

AT BG CZ FR HR HU +2
22 records

Helianthus annuus L. · Sunflower

Revol Benoit

AT FR HR IT RO UA
20 records

MAS 97 A

Active

Helianthus annuus L. · Sunflower

Oliv"ie Ladsus

BG ES FR HR HU IT +1
19 records

RP 4160

Terminated

Helianthus annuus L. · Sunflower

AGRA SEED/I. CONDOR

ES
1 record

RP 4162

Terminated

Helianthus annuus L. · Sunflower

AGRA SEED/I. CONDOR

ES
1 record

RP 524

Terminated

Helianthus annuus L. · Sunflower

RHONE POULENC AGROCHIMIE (FR)

FR
1 record

Nearby in the species list RP 250, RP 256, RP 267, RP 268, RP 4112, RP 4123, RP 4133, RP 4140, RP 4160, RP 4162, RP 524, RP 526, RP 600, RP 603, RP 606, RP 911, RP259, RP527, RP901, RP902

Discussion: RP 521

0 messages

Growing experience and notes on the entry. Comments are not part of the reference data and are not verified against primary sources.

Comments are open to signed-in readers. Sign in · Sign up