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Variety traits

Sunflower lodging

Helianthus annuus L.

Sunflower lodging is the loss of plant stability, leading to yield reduction and difficulties in mechanical harvesting. A distinction is made between root lodging, due to weakened root anchorage in the soil, and stem lodging, resulting from stem breakage or bending.

In the reference 1 035 varieties crop Sunflower, where this is mentioned in the description.

In the state variety testing system, sunflower lodging resistance is evaluated on a 5-point scale. The assessment is conducted visually up to harvest, taking into account the plants' ability to straighten. A score of 5 is assigned to non-lodging varieties, while 1 point corresponds to severe lodging that makes mechanical harvesting impossible.

In addition to the point score, specialists record the type of damage, the plant development stage, and the conditions that triggered the phenomenon, such as stand density, weather conditions, or disease infection. The risk of sunflower lodging increases significantly with pathologies that weaken stem and root tissues, for example, Phoma infection.

Key agrotechnical factors for preventing lodging are the optimization of sowing density and balanced nitrogen nutrition, which prevents the formation of excessively thin stems. Morphological features of the plants, including the high windage of the flower head, also play a significant role in resistance to wind loads.

General information about the subject — on the page Lodging.

Sources6

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.

SY Experto

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

IT RO SK UA
11 records

Subeo

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

AT HR HU PT RO UA
12 records

Pr64g46

Active

Helianthus annuus L. · Sunflower

Shatsman Dmytro Oleksandrovych

BG ES HR HU UA
13 records

P64he133

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

AT IT SK UA
14 records

Oscar

Active

Helianthus annuus L. · Sunflower

Rustica Prograin Genetique SA (FR)

CZ DE ES FR IT UA
12 records

Opera PR

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

BG HR HU IT UA
11 records

NK Armoni

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

BG FR HR HU UA
10 records

ES Veronika

Active

Helianthus annuus L. · Sunflower

Euralis Semences, F

BG FR IT UA
12 records

ES Niagara

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

ES FR SK UA
13 records

ES Genesis

Active

Helianthus annuus L. · Sunflower

Euralis Semences, F

BG ES RO
11 records

ES Andromeda

Active

Helianthus annuus L. · Sunflower

Euralis Semences

BG ES RO UA
12 records

Vellox

Active

Helianthus annuus L. · Sunflower

Sebastian Chatre

CZ FR UA
10 records

Tristan

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG, CH

BG ES SK UA
9 records

SY Flamenco

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

FR HU SK UA
10 records

SY Edison

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

HU SK UA
12 records

SY Diego CLP

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

ES HU IT RO UA
11 records

SY Corsica AR

Active

Helianthus annuus L. · Sunflower

Syngenta Participations AG., Basel CH

AT ES HR HU RO UA
11 records

Surest

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

AT IT RO SK UA
12 records

Subaro

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

BG IT RO UA
11 records

P64LE136

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Corporation, USA

IT RO UA
13 records

NK Fortimi

Active

Helianthus annuus L. · Sunflower

Syngenta France SAS

BG SK UA
9 records

NK Adagio

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG, Seeds Division, CH

BG HR HU SK UA
14 records

Marbelia CL

Active

Helianthus annuus L. · Sunflower

Rene Baraten

IT RO SK UA
11 records

KWS Dragon

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

HR IT PT UA
11 records

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