Skip to content

Diseases

Phytophthora Root and Stem Rot of Soybean

Glycine max (L.) Merr.

A fungal disease of soybean caused by the oomycete Phytophthora sojae, manifesting as seed decay, damping-off, and root and stem rot. It is characterized by the presence of race-specific Rps resistance genes and high variability of pathogen pathotypes.

In the reference 61 varieties crop Soybean, where this is mentioned in the description.

The pathogen Phytophthora sojae infects soybean at any stage of development, causing seedling blight or the appearance of necrotic lesions on the root system and chocolate-brown cankers at the base of the stem. Destruction of the roots leads to yellowing and wilting of actively growing plants even under adequate moisture conditions.

Genetic protection is based on the use of Rps genes, which provide race-specific resistance. Breeding programs utilize Rps1a, Rps1c, Rps1k, Rps3a, and Rps6 alleles; however, their efficacy depends on the regional composition of the pathogen population. Identification of pathotypes is carried out through inoculation on differential cultivars with known Rps genes.

General information about the subject — on the page Late blight.

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.

S 24-12

Active

Glycine max (L.) Merr. · Soybean

Syngenta Seeds

IT
4 records

Glycine max (L.) Merr. · Soybean

P. Jeanson

AT FR HU IT RO SK +1
18 records

Ezra

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin, CAN

AT HR HU UA
11 records

Glycine max (L.) Merr. · Soybean

University of Guelph (CA)

FR HR HU UA
9 records

Glycine max (L.) Merr. · Soybean

Plant Products Division Agriculture Canada

AT CZ FR SK
7 records

Glycine max (L.) Merr. · Soybean

Patrice Jeanson

FR IT UA
11 records

Basak

Active

Glycine max (L.) Merr. · Soybean

Gerardo Luis Bartolome

HR IT UA
10 records

Liska

Active

Glycine max (L.) Merr. · Soybean

Sylvain Legay

CZ UA
7 records

Glycine max (L.) Merr. · Soybean

STINE SEED Co, USA

RO UA
7 records

Glycine max (L.) Merr. · Soybean

STINE SEED CO.

PL RO UA
6 records

Glycine max (L.) Merr. · Soybean

STINE SEED Co, USA

RO UA
8 records

Faribault

Protection expired

Glycine max (L.) Merr. · Soybean

THE MINNESOTA AGRICULTURAL EXPERIMENT STATION

IT
4 records

Glycine max (L.) Merr. · Soybean

SNOW BRAND SEED CO.LTD

IT
5 records

Matilda

Active

Glycine max (L.) Merr. · Soybean

Sevita Genetics (CA)

FR IT UA
5 records

Glycine max (L.) Merr. · Soybean

University of Guelph Department of Plant Agriculture

AT
4 records

Nala

Active

Glycine max (L.) Merr. · Soybean

Sylvain Legay

CZ UA
6 records

Baron

Protection expired

Glycine max (L.) Merr. · Soybean

W.G. Thompson & Sons Ltd (CA)

FR IT
5 records

Williams

Active

Glycine max (L.) Merr. · Soybean

USDA MAINE

ES
5 records

Siberia

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin Inc

PL UA
6 records

Glycine max (L.) Merr. · Soybean

Stine Seed Company

RO UA
7 records

Glycine max (L.) Merr. · Soybean

Stine Harry

RO UA
5 records

RD-714

Active

Glycine max (L.) Merr. · Soybean

Research Planning and Coordination Agriculture and Agri-Food (CA)

FR
4 records

Glycine max (L.) Merr. · Soybean

Syngenta participation AG

IT
7 records