Skip to content
agronom.cc cultivar database

Diseases

Downy mildew of sunflower

Helianthus annuus L.

A systemic disease of sunflower caused by the oomycete Plasmopara halstedii, which persists in the soil for up to 8 years and infects the plant through the root system.

In the reference 905 varieties crop Sunflower, where this is mentioned in the description.

The pathogen Plasmopara halstedii is capable of forming more than 30 races, of which 330, 334, 710, and 730 are the most common in Russia. The pathogen penetrates the plant at early growth stages, causing stunting, chlorotic spots along the leaf veins, and the appearance of white felt-like mycelium on the underside of the leaves. The disease can lead to underdeveloped flower heads and empty achenes.

Up to six forms of infection manifestation are distinguished, ranging from early seedling death to latent infection, the symptoms of which only become visible by the flowering stage. In breeding for resistance to the pathogen, Pl genes are used (e.g., Pl6, Pl8, Plarg, Pl5+). Since the pathogen mutates actively, the most effective method of control is the development of genotypes with a combination of these genes to provide protection against a broad spectrum of races.

General information about the subject — on the page Downy mildew.

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.

ES Electric CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

BG IT RO UA
10 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

Novator

Application submitted

Helianthus annuus L. · Sunflower

SEREBRYaKOVA MARINA SERGEEVNA / ZhUZhUKIN VALERIJ IVANOVICh / KOYuDA SERGEJ PETROVICh / SUGROBOV ALEKSANDR FEDOROVICh

FR IT UA
8 records

P63le113

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

HU RO UA
13 records

Kaledonia CL

Active

Helianthus annuus L. · Sunflower

Pierre GARRAUD

IT RO UA
10 records

Dracaris CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences, F

BG ES UA
10 records

ES Isida

Active

Helianthus annuus L. · Sunflower

Euralis Semences, F

ES FR UA
9 records

ES Loris CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences, Mondonville FR

HU IT UA
10 records

Camaro 2

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK
7 records

Alcantara

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

IT PT UA
8 records

M98CL88

Active

Helianthus annuus L. · Sunflower

May Agro Tohumculuk A.S.Samanli Mah.Yigitler Cd.28,Bursa, Turkey

BG UA
8 records

IR79DMR

Active

Helianthus annuus L. · Sunflower

Nidera S.A.

BG UA
7 records

ES Grafic CL

Active

Helianthus annuus L. · Sunflower

Euralis Semences

IT UA
8 records

Armada cl

Active

Helianthus annuus L. · Sunflower

MAY-AGRO SEED CORPORATION

BG ES
10 records

MAS 86OL

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES FR IT RO UA
9 records

MAS 98K

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

FR IT SK UA
9 records

LG50475

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

ES IT SK UA
10 records

ES Agora

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

BG FR IT UA
9 records

Suzuka

Active

Helianthus annuus L. · Sunflower

Syngenta Participations AG

ES PT UA
9 records

MAS 83SU

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

IT UA
8 records

Sulfonor

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

IT PT UA
9 records

SY Roseta CLP

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

ES PT UA
7 records

Helesun SU

Active

Helianthus annuus L. · Sunflower

TEODORESCU ANDREEA

RO UA
9 records

Jump to page 11 17 18 22 28 33