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
Cvejic, Sandra Dusanic, Nenad Jockovic, Milan Miklic, Vladimir Mykhno, Mykola Jocic, Sinisa
Helianthus annuus L. · Sunflower
Frank Jozsef / Duruczne Ocsko Edit / Ivan Jozsef / Nemeth Gizella / Palvoelgyi Laszlo / Szabo Antal
Helianthus annuus L. · Sunflower
VANDERHAVE RESEARCH
Helianthus annuus L. · Sunflower
Limagrain Genetics Grandes Cultures SA (FR)
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.
Helianthus annuus L. · Sunflower
Pryvatne Pidpryiemstvo "NASINNEVE"
Helianthus annuus L. · Sunflower
Kucheryava Olena Ivanivna, Hyske Ivan Mykolayovich, Buchuchanu Mikhail Ivanovich,
Helianthus annuus L. · Sunflower
Parii IAroslav Fedorovych
Helianthus annuus L. · Sunflower
Joel Meunier
Helianthus annuus L. · Sunflower
Patrick Duhigg
Helianthus annuus L. · Sunflower
Meszaros Laszlo / Piszker Zoltan / Walcz Ilona / Takacs Laszlo
Helianthus annuus L. · Sunflower
EURALIS SEMILLAS, S.A.
Helianthus annuus L. · Sunflower
Didier Sauvaire
Helianthus annuus L. · Sunflower
Shkorich Dragan, Zaitsev Oleksii Borysovych,
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Helianthus annuus L. · Sunflower
Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Halin Heorhiiev Heorhiiev
Helianthus annuus L. · Sunflower
VERNEUIL RECHERCHE
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Agro Bio Seed Ltd, BG
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower