Variety traits
Helianthus annuus L.
A biological trait that determines the duration of the sunflower vegetation period from emergence to physiological maturity, measured in calendar days.
In the reference 1 708 varieties crop Sunflower, where this is mentioned in the description.
The vegetation period of sunflower varies from super-ultra-early varieties maturing in up to 80 days to medium-late ones requiring between 116 and 135 days. Intermediate groups include ultra-early (about 90 days), early-maturing (70–100 days), medium-early (108–112 days), and medium-maturing (110–116 days).
The choice of maturity group determines cultivation technology: late hybrids have a higher yield and oil content potential but require larger sums of active temperatures. Early groups are preferred for regions with short summers and allow for the optimization of harvest timing before winter crop sowing.
General information about the subject — on the page Maturity group.
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
NORTHRUP KING
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad (RS)
Helianthus annuus L. · Sunflower
Jean Pierre Dufourcq
Helianthus annuus L. · Sunflower
JOSE RAMON PEREZ MONREAL
Helianthus annuus L. · Sunflower
EUROGEN SRL
Helianthus annuus L. · Sunflower
ISEA S.P.A.
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
Institute of Field & Vegetable Crops (RS)
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
Sebastien Chatre
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
Jose Romon Perez Monreal
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
RAGT 2n, FR
Helianthus annuus L. · Sunflower
RAGT Czech s.r.o.,CZ
Helianthus annuus L. · Sunflower
SIGCO Research
Helianthus annuus L. · Sunflower
GOLDEN WEST SEED RESEARCH Co.
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Helianthus annuus L. · Sunflower
Thierry Andre
Helianthus annuus L. · Sunflower
Soltis S.A.S. France
Helianthus annuus L. · Sunflower
Soltis S.A.S. France