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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.

Sources8

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.

Helianthus annuus L. · Sunflower

Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,

UA
3 records

Helianthus annuus L. · Sunflower

Dusanic Nenad, Miklic Vladimir, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

UA
3 records

Helianthus annuus L. · Sunflower

Miklic Vladimir, Dusanic Nenad, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

UA
3 records

Helianthus annuus L. · Sunflower

Ovuka Jelena, Dimitrijevic Aleksandra, Radeka Ilija, Jockovic Milan, Jocic Sinisa, Cvejic Sandra,

UA
3 records

Helianthus annuus L. · Sunflower

Dedic Bosko, Imerovski Ivana, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,

UA
3 records

Helianthus annuus L. · Sunflower

Dusanic Nenad, Gvozdenovic Sandra, Jocic Sinisa,

UA
4 records

Helianthus annuus L. · Sunflower

Cvejic, Sandra Dusanic, Nenad Jockovic, Milan Miklic, Vladimir Mykhno, Mykola Jocic, Sinisa

UA
3 records

LG50633

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
2 records

Konsul

Terminated

Helianthus annuus L. · Sunflower

Shkorych Drahan, Zaitsev Oleksii Borysovych,

UA
4 records

Khors

Active

Helianthus annuus L. · Sunflower

Synysha Iotsych, Drahan Shkorych,

UA
2 records

Helianthus annuus L. · Sunflower

Euralis Semences

BG
2 records

Helianthus annuus L. · Sunflower

TEODORESCU ANDREEA

UA
3 records

Consul

Terminated

Helianthus annuus L. · Sunflower

PACIFICO

ES
2 records

92 B

Active

Helianthus annuus L. · Sunflower

MIHSAN Ltd - Sofia (BG)

BG
3 records

TOLEDO-9

Terminated

Helianthus annuus L. · Sunflower

CECOSA

ES
2 records

Suberic

Active

Helianthus annuus L. · Sunflower

SK UA
3 records

Helianthus annuus L. · Sunflower

RO
3 records

Concorde

Active

Helianthus annuus L. · Sunflower

IT
4 records

Dea

Protection expired

Helianthus annuus L. · Sunflower

RO
3 records

Demetra

Active

Helianthus annuus L. · Sunflower

RO
3 records

Sunce

Terminated

Helianthus annuus L. · Sunflower

Poljoprivredni Institut Osijek, HR

HR
2 records

Ollimi

Terminated

Helianthus annuus L. · Sunflower

UA
3 records

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