Variety traits
Helianthus annuus L.
The ability of sunflower hybrids to maintain stable yield and oil content levels when affected by pathogens or environmental stress factors.
In the reference 633 varieties crop Sunflower, where this is mentioned in the description.
Tolerance in sunflowers is characterized by the interaction within the plant-pathogen system, where a hybrid maintains productivity even in the presence of a disease, such as Phomopsis, Fusarium wilt, or charcoal rot. Unlike immunity, this trait does not imply complete resistance but reflects the plant's ability to withstand infectious pressure without a critical reduction in seed weight.
Tolerance assessment is conducted through comparative field trials by analyzing productivity indices and regression coefficients under epiphytotic or stress conditions. Hybrids with high tolerance demonstrate stable yield performance, which helps reduce dependence on fungicide treatments and enhances the crop's ecological plasticity across various soil and climatic zones.
General information about the subject — on the page Tolerance.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Helianthus annuus L. · Sunflower
Pioneer Overseas Corporation, USA
Helianthus annuus L. · Sunflower
Maisadour Semences, F
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Helianthus annuus L. · Sunflower
Advanta Seed International
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Helianthus annuus L. · Sunflower
SYNGENTA AGRO S.A.
Helianthus annuus L. · Sunflower
Nuseed Europe, GB
Helianthus annuus L. · Sunflower
Roberto Reid
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
Jockovic Milan, Imerovski Ivana, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION US
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Remy Rouane
Helianthus annuus L. · Sunflower
INTERDOR, FR
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Institute of Field & Vegetable Crops (RS)
Helianthus annuus L. · Sunflower
Jean Pierre Dufourcq
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Helianthus annuus L. · Sunflower
UPL FRANCE
Helianthus annuus L. · Sunflower
Roberto Reid
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.