PEREDOVIK
ActiveHelianthus annuus L. · Sunflower
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
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Poljoprivredni Institut Osijek, HR
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Brahin Oleksandr Mykolaiovych, Melnyk Ivan Ivanovych,
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu "Ahronasinniaprom"
Helianthus annuus L. · Sunflower
Posunko Anton Olehovych, Shatsman Dmytro Oleksandrovych,
Helianthus annuus L. · Sunflower
Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INT
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
Helianthus annuus L. · Sunflower
Skakunenko, Vladyslava
Helianthus annuus L. · Sunflower
Babich Valerii Hryhorovych, Hanzhelo Mykola Hryhorovych, Libenko Mykola Oleksandrovych, Krut`ko Vasyl` Ivanovych,
Helianthus annuus L. · Sunflower
Seedtec International Inc (US)
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «IEvrosem»
Helianthus annuus L. · Sunflower
Hyskie Ivan Mykolaiovych, Bohdan Ihor` Vyktorovych,
Helianthus annuus L. · Sunflower
Joel Meunier
Helianthus annuus L. · Sunflower
Kalinichenko Artem Oleksandrovych
Helianthus annuus L. · Sunflower
Suprun Oleh Hryhorovych, Shepilov Borys Petrovych, Brahin Olesandr Mykolaiovych, Kolomatska Valeriia Pavlivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
RHONE POULENC AGROCHIMIE (FR)
Helianthus annuus L. · Sunflower
Surovikin Volodymyr Mykolaiovych (posmertno), Khatnians`kyi Volodymyr Ivanovych, Sliusar Emiliia L`vivna, Obydalo Dmytro Ivanovych, Ilatovs`kyi Volodymyr Platonovych, Borodin Serhii Heorhiiovych, Pustovoit Halyna Vasylivna,