AS 475
WithdrawnHelianthus annuus L. · Sunflower
ASGROW SEED CO
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
ASGROW SEED CO
Helianthus annuus L. · Sunflower
Kryvosheieva Olena Vatslavivna, Shepilov Borys Petrovych, Popova Ol`ha Andriivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Alad`ina Zoia Kyrylivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
Dejan Jovanovyh Parii, Iaroslav Parii, Myroslav
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
CECOSA
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INT
Helianthus annuus L. · Sunflower
Mykhno Mykola Viacheslavovych, Miklic Vladimir, Dusanic Nenad, Jockovic Milan, Cvejic Sandra, Jocic Sinisa,
Helianthus annuus L. · Sunflower
Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,
Helianthus annuus L. · Sunflower
EASTERN MEDITERRANEAN AGRICULTURAL RESEARCH INSTITUTE
Helianthus annuus L. · Sunflower
Leonova Nina Mykolaivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Nicolae Boaghe, Elena Andreea Teodorescu
Helianthus annuus L. · Sunflower
Olivier Soulie
Helianthus annuus L. · Sunflower
Suprun Oleh Hryhorovych, Petrenkova Vira Pavlivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Instytut roslynnytstva im. V.IA. Yur'ieva Natsionalnoi akademii ahrarnykh nauk Ukrainy
Helianthus annuus L. · Sunflower
Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
Helianthus annuus L. · Sunflower
Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TD SANTREID LTD»
Helianthus annuus L. · Sunflower
Hiunter Zaitts
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Thierry Andre
Helianthus annuus L. · Sunflower
Hanzhelo Mykola Hryhorovych, Krutko Vasyl Ivanovych,
Helianthus annuus L. · Sunflower
Joel Meunier