Skip to content

Diseases

Downy Mildew (Peronospora) — Soybean

Glycine max (L.) Merr.

A fungal disease of soybean caused by the oomycete Peronospora manshurica, which infects the plant systemically via seeds or locally during the flowering period. It is characterized by the appearance of angular leaf spots and a distinctive grayish-violet sporulation coating under high humidity cond…

In the reference 65 varieties crop Soybean, where this is mentioned in the description.

The causative agent of the disease is a specialized pathogen, Peronospora manshurica, which exclusively infects soybean. More than 30 physiological races of this oomycete are known, which possess a high ability to adapt to the resistance genes used in commercial cultivars of the crop.

The disease manifests in two forms. The systemic form develops following seed transmission and is characterized by general plant stunting, organ deformation, and the appearance of chlorotic spots. The local form manifests from the flowering stage as angular light-green spots that eventually turn brown; simultaneously, sporulation forms on the underside of the leaf. Oospores of the pathogen can accumulate on the inner pod walls and the surface of seeds, giving them a dull appearance.

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

Sources8

Varieties of Soybean 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.

Zora

Active

Glycine max (L.) Merr. · Soybean

Poljoprivredni Institut Osijek, HR

BG HR SK
8 records

Glycine max (L.) Merr. · Soybean

STINE SEED Co, USA

RO UA
7 records

Glycine max (L.) Merr. · Soybean

STINE SEED Co, USA

RO UA
8 records

Ika

Active

Glycine max (L.) Merr. · Soybean

Poljoprivredni Institut Osijek, HR

BG HR HU
6 records

Aforia

Active

Glycine max (L.) Merr. · Soybean

Saatzucht Donau GmbH & Co.KG

AT DE
5 records

Creola

Active

Glycine max (L.) Merr. · Soybean

Gerardo Bartolome

IT UA
5 records

Glycine max (L.) Merr. · Soybean

Saatzucht Donau GmbH & Co.KG

AT UA
6 records

Aniella

Active

Glycine max (L.) Merr. · Soybean

SAATZUCHT DONAU GES.M.B.H. & COKG

AT DE
4 records

Puma

Active

Glycine max (L.) Merr. · Soybean

ZELENTSOV SERGEJ VIKTOROVICh / KOChEGURA ALEKSANDR VASIL'EVICh / MOShNENKO ELENA VALENTINOVNA / TRUNOVA MARINA VALERIEVNA / BUDNIKOV EVGENIJ NIKOLAEVICh / TKAChEVA ANTONINA ALEKSANDROVNA / VAJLOVA ALENA VLADIMIROVNA / BUBNOVA LYuBOV' ALEKSANDROVNA

IT
6 records

Lenka

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin Inc

AT UA
5 records

Axioma

Active

Glycine max (L.) Merr. · Soybean

Saatzucht Donau GmbH & Co.KG

AT SK
5 records

Akumara

Active

Glycine max (L.) Merr. · Soybean

Saatzucht Donau GmbH & Co.KG

AT CZ
5 records

Glycine max (L.) Merr. · Soybean

Stine Seed Company

RO UA
7 records

Glycine max (L.) Merr. · Soybean

MURESANU EUGEN

RO
4 records

Teo TD

Active

Glycine max (L.) Merr. · Soybean

MURESANU EUGENREZI RALUCA

RO
4 records

Ascada

Active

Glycine max (L.) Merr. · Soybean

Saatzucht Donau GmbH & Co.KG

AT
4 records

Todeka

Active

Glycine max (L.) Merr. · Soybean

Universitaet Hohenheim

DE
4 records

Proton

Terminated

Glycine max (L.) Merr. · Soybean

STINE SEED CO.

IT
3 records

OS Zora

Active

Glycine max (L.) Merr. · Soybean

Poljoprivredni Institut Osijek, HR

HR
4 records

Aralia

Active

Glycine max (L.) Merr. · Soybean

SAATZUCHT DONAU GES.M.B.H. & COKG

AT
3 records

Lira

Active

Glycine max (L.) Merr. · Soybean

KOChEGURA ALEKSANDR VASIL'EVICh / ZELENTSOV SERGEJ VIKTOROVICh / TREMBAK EVGENIJ NIKOLAEVICh / PODKINA DIANA VASIL'EVNA

UA
5 records

Glycine max (L.) Merr. · Soybean

Sonets` Viktor Andriiovych, Pylypchenko Andrii Vasylovych, Tymchenko Viktor Naumovych, Marc Ham, Andre Letourneau, Alie Leturno,

UA
5 records

Horol

Active

Glycine max (L.) Merr. · Soybean

Sonets` Viktor Andriiovych, Pylypchenko Andrii Vasylovych, Tymchenko Viktor Naumovych, Marc Ham, Andre Letourneau, Alain Letourneau,

UA
6 records

Glycine max (L.) Merr. · Soybean

MURESANU EUGENREZI RALUCA

RO
4 records