AS 33-111
ActiveHelianthus annuus L. · Sunflower
Frederic Poujeaud
Variety traits
Helianthus annuus L.
The time from full emergence to the onset of harvest maturity of seeds, measured in days and depending on the maturity group and the sum of active temperatures.
In the reference 678 varieties crop Sunflower, where this is mentioned in the description.
The duration of the sunflower growing season covers the period from full emergence to the stage of physiological maturity, determined by the darkening of seeds, the drying of heads, and a seed moisture content of 10–15%. Plant development is assessed by interphase periods in accordance with the international BBCH scale.
The crop is divided into maturity groups ranging from ultra-early (80–90 days) to mid-late (116–135 days or more). The biological requirement for the sum of active temperatures above +10°C correlates with the duration of the period: early-maturing varieties require about 2000°C, while mid-maturing varieties require about 2150°C.
The length of the growing season directly affects yield: varieties with a longer formation period are potentially more productive but require a greater amount of heat. Proper selection of a maturity group allows agronomists to optimize crop rotation and avoid the impact of drought or frost.
General information about the subject — on the page Vegetation period.
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
Frederic Poujeaud
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
S.D.M.E. SOCIETE DE MAIS EUROPEENS - STAZIONE SPERIMENTALE KWS
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
LIDEA FRANCE SAS
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Euralis Semences
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Euralis Semences
Helianthus annuus L. · Sunflower
KOIPESOL SEMILLAS, S.A.
Helianthus annuus L. · Sunflower
Monsanto Technology LLC, US
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NUSEED EUROPE
Helianthus annuus L. · Sunflower
Jim Gerdes
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SYNGENTA FRANCE S.A.S.
Helianthus annuus L. · Sunflower
KOIPESOL S.A.
Helianthus annuus L. · Sunflower
RAGT 2n, FR
Helianthus annuus L. · Sunflower
GORBAChENKO VALENTINA DANILOVNA / GORBAChENKO OLEG FEDOROVICh / GORBAChENKO FEDOR IVANOVICh / USATENKO TAT'YaNA VASIL'EVNA / LUChKIN NIKOLAJ SERGEEVICh / BURLYaEVA EVGENIYa GRIGOR'EVNA / ZhITNIK NADEZhDA ALEKSANDROVNA
Helianthus annuus L. · Sunflower
SINISA JOCIC / SANDRA CVEJIC / GORAN MALIDZA / VLADIMIR MIKLIC / NENAD DUSANIC / DRAGANA MILADINOVIC
Helianthus annuus L. · Sunflower
ISEA S.P.A.
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Mais Angevin (FR)
Helianthus annuus L. · Sunflower
PETRAN ALEXANDRU VIORELDRAGHIA VIOLETA CONSTANTAOPROI ADRIANA CRISTINA
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Surovikin Volodymyr Mykolaiovych, Sliusar Emiliia L`vivna, Soldatov Karm Ivanovych, Detsina Oleksandr Oleksandrovych, Ilatovs`kyi Volodymyr Platonovych, Borodin Serhii Heorhiiovych,
Helianthus annuus L. · Sunflower
EURALIS SEMILLAS, S.A.