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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.

P 63 LL 06

Active

Helianthus annuus L. · Sunflower

Revol Benoit

AT FR HR IT RO UA
20 records

Mas 80 IR

Active

Helianthus annuus L. · Sunflower

Zhoel` Meun`er

ES FR HR IT RO UA
16 records

LG 56.65 M

Active

Helianthus annuus L. · Sunflower

Tuson Jean-Mark

BG FR HR IT RO SK +1
18 records

LG 5485

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES FR IT SK UA
15 records

LG 56.35

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

BG IT RO SK UA
13 records

LG 5633 CL

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

AT BG CZ RO SK UA
13 records

LG 5542 CL

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES IT RO UA
16 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

P 64 LE 99

Active

Helianthus annuus L. · Sunflower

Revol Benoit

HR HU IT UA
15 records

MAS 92 IR

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

CZ ES HR IT UA
10 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

MAS 82 A

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

AT ES IT RO UA
10 records

LG 5555 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT RO UA
12 records

LG 5543 CL

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

BG IT SK UA
12 records

LG 5463 CL

Active

Helianthus annuus L. · Sunflower

Remy Rouane

ES IT UA
11 records

LG 50635 CLP

Active

Helianthus annuus L. · Sunflower

Remy Rouane

BG IT UA
11 records

LG 50585

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT SK UA
11 records

LG 50521 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

ES IT RO SK UA
12 records

LG50479 SX

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT RO SK UA
14 records

P 64 LE 19

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

BG HR RO UA
10 records

N 5LM307

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA
11 records

MAS 98 M

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG IT UA
9 records

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