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
LIMAGRAIN VERNEUIL HOLDING S.A.
Helianthus annuus L. · Sunflower
Lebid` Zoia Ivanivna, Vedmedieva Katnryna Vladyslavivna, Tolmachov Viktor Valentynovych,
Helianthus annuus L. · Sunflower
Hanenkov Ivan Ivanovych
Helianthus annuus L. · Sunflower
Malinovskyi Serhii Volodymyrovych
Helianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Helianthus annuus L. · Sunflower
Kapustian Maryna Viktorivna, Kapustian Volodymyr Vasylovych,
Helianthus annuus L. · Sunflower
Patrick Duhigg
Helianthus annuus L. · Sunflower
Kalinichenko Artem Oleksandrovych
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «IEvrosem»
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
NORTHRUP KING
Helianthus annuus L. · Sunflower
Chepolkina Tetiana Fedorivna
Helianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Helianthus annuus L. · Sunflower
Asgrow France SA (FR)
Helianthus annuus L. · Sunflower
Advanta Seed International
Helianthus annuus L. · Sunflower
Makov`eva Nadiia Petrivnav, Kusch Viacheslav Stepanovych, Herasymenko Oksana Oleksandrivna, Pershyna Liliia Vasylivna, Dymytrov Heorhii Demianovych, Skakun Vadym Mykhailovych,
Helianthus annuus L. · Sunflower
LES GOURGUES-G-CARGILL
Helianthus annuus L. · Sunflower
Joel Meunier
Helianthus annuus L. · Sunflower
Surovikin Volodymyr Mykolaiovych, Sliusar Emiliia L`vivna, Obydalo Dmytro Ivanovych, Borodin Serhii Heorhiiovych, Pustovoit Halyna Vasylivna, Ilatovs`kyi Volodymyr Platonovych,
Helianthus annuus L. · Sunflower
Pryvatne Pidpryiemstvo "NASINNEVE"
Helianthus annuus L. · Sunflower
Euralis Semences FR
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Didier Sauvaire