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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.

MAS 97 A

Active

Helianthus annuus L. · Sunflower

Oliv"ie Ladsus

BG ES FR HR HU IT +1
19 records

PR 63 A 90

Active

Helianthus annuus L. · Sunflower

Soper, John

AT BG CZ FR HR HU +2
22 records

Mas 80 IR

Active

Helianthus annuus L. · Sunflower

Zhoel` Meun`er

ES FR HR IT RO UA
16 records

LG 5485

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES FR IT SK UA
15 records

LG 5633 CL

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

AT BG CZ RO SK UA
13 records

LG 56.35

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

BG IT RO SK UA
13 records

AL'ZAN

Active

Helianthus annuus L. · Sunflower

SEMENCES COOP DE PAU (FR)

AT BG CZ FR HR HU +1
12 records

P 64 LE 25

Active

Helianthus annuus L. · Sunflower

Revol Benua

BG HR IT RO UA
16 records

LG 55.80

Active

Helianthus annuus L. · Sunflower

Limagrain Verneuil Holding (FR)

BG IT SK UA
13 records

MAS 92 IR

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

CZ ES HR IT UA
10 records

LG 50521 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

ES IT RO SK UA
12 records

MAS 82 A

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

AT ES IT RO UA
10 records

P 64 LE 99

Active

Helianthus annuus L. · Sunflower

Revol Benoit

HR HU IT UA
15 records

MAS 89M

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

FR IT RO UA
12 records

MAS 92 CP

Active

Helianthus annuus L. · Sunflower

Maisadour Semences, F

ES RO SK UA
10 records

MAS 87 IR

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA
11 records

LG 50585

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT SK UA
11 records

LG 5463 CL

Active

Helianthus annuus L. · Sunflower

Remy Rouane

ES IT UA
11 records

NK Rocky

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

AT BG FR HU UA
10 records

N 5LM307

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA
11 records

P 63 LL 124

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Corporation US (USA)

AT FR HR UA
12 records

MAS 90 F

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA
10 records

MAS 91 G

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG IT RO UA
10 records

DEL'TASOL

Active

Helianthus annuus L. · Sunflower

Semences Cargill SA (FR)

AT BG FR IT RO
12 records

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