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Pests

Soybean cyst nematode

Glycine max (L.) Merr.

The soybean cyst nematode (Heterodera glycines) is an obligate sedentary parasite of soybean that causes stunted growth and reduced nitrogen fixation. The primary signs of infestation include patches of yellowing plants and the presence of small brown cysts on the roots.

In the reference 35 varieties crop Soybean, where this is mentioned in the description.

The pathogen responsible is Heterodera glycines from the Heteroderidae family. External symptoms of infestation in the aerial part include stunting, yellowing of leaves, and delayed growth, which often resemble nutrient deficiency or drought. On the roots, there is suppressed nodule development, 'fraying' of the root system, and the appearance of small lemon-shaped females that transform into brown cysts.

Pest populations are characterized by high variability, which is assessed using the HG Type classification based on the nematodes' ability to overcome cultivar resistance. The main genetic sources of resistance are lines PI 88788 and Peking, controlled by the Rhg1 and Rhg4 loci. However, prolonged use of limited sources of resistance has led to nematode adaptation and a decrease in the effectiveness of protection.

General information about the subject — on the page Nematodes.

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 18-11

Active

Glycine max (L.) Merr. · Soybean

Syngenta Seeds

IT
4 records

Glycine max (L.) Merr. · Soybean

MAURICIO CONRADO MEYER_ / LEONES ALVES DE ALMEIDA_ / ROMEU AFONSO DE SOUZA KIIHL_

FR
4 records

Ezra

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin, CAN

AT HR HU UA
11 records

Liska

Active

Glycine max (L.) Merr. · Soybean

Sylvain Legay

CZ UA
7 records

Glycine max (L.) Merr. · Soybean

STINE SEED CO.

PL RO UA
6 records

Faribault

Protection expired

Glycine max (L.) Merr. · Soybean

THE MINNESOTA AGRICULTURAL EXPERIMENT STATION

IT
4 records

Toliman

Terminated

Glycine max (L.) Merr. · Soybean

RAC Station federale de recherches agronomiques de Changins (CH)

FR
6 records

Glycine max (L.) Merr. · Soybean

SNOW BRAND SEED CO.LTD

IT
5 records

Siberia

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin Inc

PL UA
6 records

Glycine max (L.) Merr. · Soybean

Stine Harry

RO UA
5 records

Isa TD

Active

Glycine max (L.) Merr. · Soybean

MURESANU EUGENREZI RALUCAURDA ANCA CAMELIA

RO
4 records

Asana

Active

Glycine max (L.) Merr. · Soybean

Semences Prograin Inc

UA
4 records

92M10

Active

Glycine max (L.) Merr. · Soybean

PIONEER HI-BRED INTERNATIONAL

IT
3 records

Sonata

Active

Glycine max (L.) Merr. · Soybean

R 2n (FR)

FR
5 records

Glycine max (L.) Merr. · Soybean

UNIVERSITY OF GUELPH

UA
4 records

Amsoy 71

Active

Glycine max (L.) Merr. · Soybean

University of Indiana (US)

FR
3 records

A2234

Protection expired

Glycine max (L.) Merr. · Soybean

MONSANTO TECHNOLOGY

ES
2 records

2705849

Application submitted

Glycine max (L.) Merr. · Soybean

Benson Hill Seeds Inc.

2 records

AG1901

Protection expired

Glycine max (L.) Merr. · Soybean

MONSANTO TECHNOLOGY

IT
2 records

Alpha

Protection expired

Glycine max (L.) Merr. · Soybean

Minnesota Agricultural Experiment Station

IT
2 records

Glycine max (L.) Merr. · Soybean

Istvan Rajkan

UA
3 records

Glycine max (L.) Merr. · Soybean

Istvan Rajcan

UA
3 records

DH4202

Active

Glycine max (L.) Merr. · Soybean

Milad Eskandari

UA
3 records