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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 96 P

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG ES IT UA
8 records

LG 50514

Active

Helianthus annuus L. · Sunflower

Limagrain Europe S.A.S

ES FR IT UA
10 records

MAS 98 M

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG IT UA
9 records

X 4219

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA
10 records

NHK 12 M 010

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA
12 records

MAS 95 IR

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

IT RO UA
7 records

MAS 92 B

Terminated

Helianthus annuus L. · Sunflower

MAS SEEDS

AT ES FR HR IT
9 records

LG 5661CL

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT SK UA
8 records

MAS 81K

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

IT SK UA
9 records

P 64LP140

Active

Helianthus annuus L. · Sunflower

Sadik El Sayed

ES RO UA
12 records

P 64 LL 125

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Corporation, USA

RO UA
13 records

MAS 85 SU

Active

Helianthus annuus L. · Sunflower

Maisadour Semences, F

RO UA
8 records

N4l472 Cl

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

FR IT RO UA
9 records

Hysun 158 IT

Active

Helianthus annuus L. · Sunflower

PHILIPPE JOUVE

PT RO SK UA
7 records

N 4 LM 408

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT SK UA
8 records

Hysun 180 IT

Active

Helianthus annuus L. · Sunflower

Advanta Seed International

PT SK UA
7 records

Hysun 238 IT

Active

Helianthus annuus L. · Sunflower

Roberto Reid

PT RO UA
8 records

P 64 LE 121

Active

Helianthus annuus L. · Sunflower

Sadik El Sayed

ES UA
9 records

MAS 87 A

Active

Helianthus annuus L. · Sunflower

Joel Meunier

RO SK UA
7 records

LG50455 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT UA
9 records

MAS 91 A

Terminated

Helianthus annuus L. · Sunflower

INTERDOR, FR

FR IT UA
8 records

MAS 93 CP

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

IT UA
6 records

MAS 91 IR

Active

Helianthus annuus L. · Sunflower

Joel Meunier

RO UA
8 records

LID 5038H

Active

Helianthus annuus L. · Sunflower

Jean Pierre Dufourcq

BG IT UA
6 records

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