H251B
ActiveHelianthus annuus L. · Sunflower
Agrigenetics Inc (US)
Variety traits
Helianthus annuus L.
An important morphometric indicator that determines productivity and harvesting efficiency, measured as the distance from the soil surface to the point of capitulum attachment.
In the reference 1 147 varieties crop Sunflower, where this is mentioned in the description.
According to state variety testing protocols, measurements are taken before harvest on a representative sample of plants. Height is defined as the distance from the soil surface to the point where the capitulum attaches; less frequently, it is measured to the center of the face of the capitulum.
The range of variability for the species is extremely wide: from 60 cm in dwarf lines to 5–6 meters in ornamental forms, while commercial early-maturing hybrids typically vary between 164–175 cm. This trait is highly dependent on genotype, plant density, water availability, and soil fertility.
Plant height directly affects the efficiency of mechanical harvesting: excessive height or bending of the stem near the capitulum can lead to yield losses. Although tall plants often form a higher potential yield, they require significant resources and may be less stable under adverse conditions.
General information about the subject — on the page Plant height.
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
Agrigenetics Inc (US)
Helianthus annuus L. · Sunflower
Kryvosheieva Olena Vatslavivna, Veselyi Vitalii Oleksandrovych, Brahin Oleksandr Mykolaiovych, Popova Ol`ha Andriivna, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Alad`ina Zoia Kyrylivna, Kyrychenko Viktor Vasyl`
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Borovs`ka Iryna IUriivna, Petrenkova Vira Pavlivna, Brahin Oleksandr Mykolaiovych, Tymchuk Serhii Mykhailovych, Satarov Oleksandr Zainulovych, Syvenko Oleksandr Anatoliiovych, Popova Ol`ha Andriivna, Kolomatska Valeriia Pavlivna, Syvenko Valentyna Ivanivn
Helianthus annuus L. · Sunflower
Solomenko Andrii Ivanovych, Parii IUliia Oleksandrivna, Breus Oksana Serhiivna, Parii IAroslav Fedorovych, Parii Myroslav Fedorovych, Skoryk Volodymyr Viktorovych,
Helianthus annuus L. · Sunflower
Jocie Sinisa
Helianthus annuus L. · Sunflower
Sebastien Chatre
Helianthus annuus L. · Sunflower
Steve Thompson
Helianthus annuus L. · Sunflower
Antoine Mezzarobba
Helianthus annuus L. · Sunflower
VELI PEKCAN, TAHIR GUCER, GOKSEL EVCI, YALCIN KAYA, IBRAHIM YILMAZ
Helianthus annuus L. · Sunflower
CECOSA
Helianthus annuus L. · Sunflower
Tsevma Volodymyr Mykolaiovych, Doroshevskyi Oleksandr Volodymyrovych,
Helianthus annuus L. · Sunflower
Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych,
Helianthus annuus L. · Sunflower
Odynets` Serhii Ivanovych, Sereda Valentyna Oleksiivna, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna,
Helianthus annuus L. · Sunflower
Jocie Sinisa
Helianthus annuus L. · Sunflower
Tolmachov Viktor Valentynovych
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower