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
SYNGENTA SEEDS A.G.
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
Sadik El Sayed
Helianthus annuus L. · Sunflower
Nidera, AR
Helianthus annuus L. · Sunflower
MAY AGRO SEED COPR.
Helianthus annuus L. · Sunflower
Euralis Semences, F
Helianthus annuus L. · Sunflower
KWS, D
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Euralis Semences FR
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
NuSeed Americas
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
Euralis Semences, Soltis
Helianthus annuus L. · Sunflower
LIDEA FRANCE SAS
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Olivier Soulie
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Pioneer Overseas Corporation, USA
Helianthus annuus L. · Sunflower
MAS SEEDS