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
Yatsenko Halyna Ivanivna, Yatsenko Viktor Viktorovych,
Helianthus annuus L. · Sunflower
JUNTA DE ANDALUCIA CONSEJERIA DE AGRICULTURA Y, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
Helianthus annuus L. · Sunflower
Agrigenetics Inc (US)
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Helianthus annuus L. · Sunflower
Revol Benoit
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Helianthus annuus L. · Sunflower
SIGCO COMPANY
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Syngenta Participations AG
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Jean Pierr Dufoureq
Helianthus annuus L. · Sunflower
EURALIS SEMILLAS, S.A.
Helianthus annuus L. · Sunflower
PROSEME SRL
Helianthus annuus L. · Sunflower
Cvejic Sandra, Jocic Sinisa,
Helianthus annuus L. · Sunflower
Rustica Prograin Genetique SA (FR)
Helianthus annuus L. · Sunflower
DAHLGREN AND COMPANY
Helianthus annuus L. · Sunflower
CAUSSADE SEMENCES
Helianthus annuus L. · Sunflower
CAUSSADE SEMENCES
Helianthus annuus L. · Sunflower
PACIFICO
Helianthus annuus L. · Sunflower
PACIFICO
Helianthus annuus L. · Sunflower
INTERDOR IBERICA, S.L.