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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.

Helianthus annuus L. · Sunflower

Euralis Semences

IT
1 record

M94CLP80

Terminated

Helianthus annuus L. · Sunflower

Geoffrey Lloyd Tomas

UA
2 records

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
1 record

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
1 record

LHA452/66

Terminated

Helianthus annuus L. · Sunflower

LIMAGRAIN GENETICS S.A.

IT
1 record

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
1 record

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
1 record

M95K11

Terminated

Helianthus annuus L. · Sunflower

Geoffrey Lloyd Tomas

UA
2 records

Helianthus annuus L. · Sunflower

Martin Gansmann

UA
1 record

LHA 355/34

Terminated

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

IT
1 record

LHA253/08

Terminated

Helianthus annuus L. · Sunflower

LIMAGRAIN GENETICS GRANDES CULTURES S.A.

IT
1 record

Kubans`kyi -930

Application submitted

Helianthus annuus L. · Sunflower

Shapovalova Liubov Hennadiivna, Honcharov Serhii Volodymyrovych, Holovin Anatolii Vasyl`ovych, Bochkar`ov Mykola Ivanovych, Sliusar Emiliia L`vivna, Hrydniev Oleksii Kuz`mich, Sharyhina Mariana L`vivna, Savchenko Valentyna Dem'ianivna, Bochkovoi Anatolii

UA
1 record

Kortesa

Active

Helianthus annuus L. · Sunflower

Malinovskyi Serhii Volodymyrovych

UA
2 records

Korsyka

Active

Helianthus annuus L. · Sunflower

Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,

UA
2 records

Helianthus annuus L. · Sunflower

KARPENKO OLEKSANDR, LUKIANCHYK IURII

UA
2 records

KVS Heliia 06

Terminated

Helianthus annuus L. · Sunflower

Martin Gansmann

UA
2 records

Helianthus annuus L. · Sunflower

Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,

UA
2 records

Kaskara

Active

Helianthus annuus L. · Sunflower

Kapustian Maryna Viktorivna, Kapustian Volodymyr Vasylovych,

UA
2 records

Kh 114 V

Terminated

Helianthus annuus L. · Sunflower

Brahin Oleksandr Mykolaiovych, Veselyi Vitalii Oleksandrovych, Kuzmysheva Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

UA
2 records

Helianthus annuus L. · Sunflower

Borovs`ka Iryna IUriivna, Leonova Nina Mykolaivna, Syvenko Oleksandr Anatoliiovych, Kuz`myshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Kolomats`ka Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasyl`ovych,

UA
2 records

KE 185

Withdrawn

Helianthus annuus L. · Sunflower

KOIPESOL SEMILLAS, S.A.

ES
1 record

IS-PRO-521

Application submitted

Helianthus annuus L. · Sunflower

Tovarystvo z obmezhenoiu vidpovidalnistiu «IEvrosem»

UA
2 records

Intehral

Terminated

Helianthus annuus L. · Sunflower

Borovs`ka Iryna IUriivna, Petrenkova Vira Pavlivna, Shepilov Borys Petrovych, Satarov Oleksandr Zainulovych, Syvenko Oleksandr Anatoliiovych, Kuzmyshena Nadiia Viktorivna, Veselyi Vitalii Oleksandrovych, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pav

UA
2 records

IS 7116

Terminated

Helianthus annuus L. · Sunflower

Interstate Seed Co.

ES
1 record

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