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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.

Sanbro

Active

Helianthus annuus L. · Sunflower

Syngenta Seeds S.A.

AT DE ES FR IT
13 records

Fantasol

Application submitted

Helianthus annuus L. · Sunflower

Semences Cargill SA (FR)

AT BG FR HR UA
8 records

Joana

Active

Helianthus annuus L. · Sunflower

Rustica Prograin Genetique SA (FR)

AT BG FR HR HU
8 records

ES Rica

Terminated

Helianthus annuus L. · Sunflower

Euralis Semences, Mondonville FR

AT BG FR HU SK
8 records

ES Magnific

Terminated

Helianthus annuus L. · Sunflower

Euralis Semences FR

CZ DE FR IT SK
8 records

SY Michigan CLP

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

HU RO SK UA
10 records

SY Chester

Active

Helianthus annuus L. · Sunflower

Syngenta Participations AG| CH

FR IT PT UA
9 records

Supersol

Active

Helianthus annuus L. · Sunflower

LES GOURGUES-G-CARGILL

ES IT RO UA
11 records

Suliano

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

AT RO SK UA
10 records

Rumbasol OR

Application submitted

Helianthus annuus L. · Sunflower

PHILIPPE JOUVE

BG HR RO UA
8 records

P64LL138

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION US

FR IT RO UA
11 records

P64bb01

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION US

BG FR SK UA
8 records

P64LL155

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Corporation, USA

AT FR RO UA
13 records

NK Alego

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG, CH

BG HU SK UA
8 records

Iollna

Active

Helianthus annuus L. · Sunflower

Sebastian Chatre

CZ FR IT UA
11 records

Imidor

Active

Helianthus annuus L. · Sunflower

Strube Espana S.a., Madrid ES

AT HU IT UA
7 records

ES Electric CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

BG IT RO UA
10 records

P64LL129

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

ES RO UA
12 records

Colombi

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG

ES IT UA
9 records

SY Diamantis

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

FR SK UA
9 records

Reyna

Active

Helianthus annuus L. · Sunflower

May Agro Seed Corp.(TR)

BG IT UA
9 records

P63le113

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

HU RO UA
13 records

Dracaris CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences, F

BG ES UA
10 records

Faro

Active

Helianthus annuus L. · Sunflower

STRUBE ESPAÑA, S.A.

ES IT UA
10 records

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