RT 933
TerminatedHelianthus annuus L. · Sunflower
UA
1 record
Variety traits
Sunflower growing season
Helianthus annuus L.
The time from full emergence to the onset of harvest maturity of seeds, measured in days and depending on the maturity group and the sum of active temperatures.
In the reference 678 varieties crop Sunflower, where this is mentioned in the description.
The duration of the sunflower growing season covers the period from full emergence to the stage of physiological maturity, determined by the darkening of seeds, the drying of heads, and a seed moisture content of 10–15%. Plant development is assessed by interphase periods in accordance with the international BBCH scale.
The crop is divided into maturity groups ranging from ultra-early (80–90 days) to mid-late (116–135 days or more). The biological requirement for the sum of active temperatures above +10°C correlates with the duration of the period: early-maturing varieties require about 2000°C, while mid-maturing varieties require about 2150°C.
The length of the growing season directly affects yield: varieties with a longer formation period are potentially more productive but require a greater amount of heat. Proper selection of a maturity group allows agronomists to optimize crop rotation and avoid the impact of drought or frost.
General information about the subject — on the page Vegetation period.
Varieties of Sunflower mentioned in the description
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.
ŠOKAC
TerminatedHelianthus annuus L. · Sunflower
Poljoprivredni Institut Osijek, HR
HR
1 record
Poghliad
Application submittedHelianthus annuus L. · Sunflower
UA
1 record
NUSY4219
WithdrawnHelianthus annuus L. · Sunflower
SK
1 record
NS-H-27-RM
TerminatedHelianthus annuus L. · Sunflower
SK
1 record
Lunnyi F1
Application submittedHelianthus annuus L. · Sunflower
UA
1 record
KWS Helia 04
Application submittedHelianthus annuus L. · Sunflower
UA
1 record
Iollna (RA1001735)
ActiveHelianthus annuus L. · Sunflower
UA
2 records
ES Bereket
ActiveHelianthus annuus L. · Sunflower
UA
2 records
ES Arabica SU
WithdrawnHelianthus annuus L. · Sunflower
SK
1 record
SY Neostar
TerminatedHelianthus annuus L. · Sunflower
NK Kondy
TerminatedHelianthus annuus L. · Sunflower
NK Adalgio
TerminatedHelianthus annuus L. · Sunflower
AGA 130
TerminatedHelianthus annuus L. · Sunflower
13MS201 CL / Meteor CL
TerminatedHelianthus annuus L. · Sunflower
Zaporizkyi 14
Application submittedHelianthus annuus L. · Sunflower
UA
1 record
Veronica
TerminatedHelianthus annuus L. · Sunflower
IT
1 record
P64LE37
WithdrawnHelianthus annuus L. · Sunflower
HU
1 record
Latituda OR
ActiveHelianthus annuus L. · Sunflower
UA
2 records
ES Alfa
ActiveHelianthus annuus L. · Sunflower
UA
2 records
Dragan OR
ActiveHelianthus annuus L. · Sunflower
UA
2 records
Dukat
Protection expiredHelianthus annuus L. · Sunflower
BG
1 record
Chumak
Application submittedHelianthus annuus L. · Sunflower
UA
1 record
LG50635
TerminatedHelianthus annuus L. · Sunflower