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
JOSE RAMON PEREZ MONREAL
Helianthus annuus L. · Sunflower
EUROGEN SRL
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
Institute of Field & Vegetable Crops (RS)
Helianthus annuus L. · Sunflower
KOIPESOL S.A.
Helianthus annuus L. · Sunflower
VRANCEANU ALEXANDRU VIORELCRAICIU DAN SORINSOARE GABRIELAVOINESCU GHEORGHEPACUREANU JOITA MARIA
Helianthus annuus L. · Sunflower
KWS Saat AG, DE
Helianthus annuus L. · Sunflower
SEMUNDO SAATZUCHT GMBH
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
Union des Cooperatives de Semences de Tournesol (FR)/Institut National de la Recherche Agronomique (FR)
Helianthus annuus L. · Sunflower
Jocie Sinisa
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Jose Romon Perez Monreal
Helianthus annuus L. · Sunflower
RAGT Semences, FR
Helianthus annuus L. · Sunflower
SIGCO Research
Helianthus annuus L. · Sunflower
Rotaru Igor Tudor, Rotaru Vitalie Tudor, Rotaru Tudor Grigore,
Helianthus annuus L. · Sunflower
GOLDEN WEST SEED RESEARCH Co.
Helianthus annuus L. · Sunflower
MONSANTO SAS,FR
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Thierry Andre
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
SOLTIS S.A.S