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Diseases

Helminthosporium leaf blight of maize

Zea mays L.

A group of maize diseases caused by the fungi Helminthosporium maydis and Exserohilum turcicum, manifesting as specific leaf spots and ear rot.

In the reference 613 varieties crop Maize, where this is mentioned in the description.

Southern corn leaf blight is caused by the fungus Helminthosporium maydis and is characterized by spindle-shaped spots on the leaves with a dark brown center. Races O, T, and C are known, of which race T is considered the most aggressive, as it is capable of causing ear rot and infecting plants with CMS-type cytoplasm.

Northern corn leaf blight is caused by the pathogen Exserohilum turcicum and manifests as large, elongated necrotic spots up to 20 cm in length. When breeding for resistance to this disease, race-specific Ht genes (Ht1, Ht2, Ht3) are used, which provide qualitative protection, as well as the Htn1 gene, which suppresses the fungus sporulation process.

General information about the subject — on the page Helminthosporiosis.

Sources8

Varieties of Maize 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.

Expedia

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

DK
5 records

ES Tales

Terminated

Zea mays L. · Maize

SYNGENTA ITALIA S.P.A.

DE IT
3 records

Dignity

Active

Zea mays L. · Maize

LIMAGRAIN EUROPE

DK
4 records

P0937Y

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

PT
4 records

P0848

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.

IT
3 records

P0413E

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

IT
4 records

P0640

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
4 records

P0551

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.

IT
3 records

P0283

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
5 records

DKC5110

Active

Zea mays L. · Maize

Monsanto Technology, USA

IT
4 records

Zea mays L. · Maize

SAATBAU LINZ EGEN

SK
4 records

75MAY75

Active

Zea mays L. · Maize

MAY AGRO SEED CORP.

IT
3 records

Ph44a

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Zea mays L. · Maize

EURALIS SAATEN

AT UA
4 records

Starmas

Active

Zea mays L. · Maize

MAS SEEDS

IT UA
3 records

MAS 282K

Active

Zea mays L. · Maize

MAS SEEDS

IT UA
3 records

MAS 400D

Active

Zea mays L. · Maize

MAS SEEDS

IT UA
3 records

Codeos

Active

Zea mays L. · Maize

Pierre GARRAUD

IT UA
5 records

Zea mays L. · Maize

CAUSSADE SEMENCES

PT SK
3 records

MAS 26K

Active

Zea mays L. · Maize

MAS SEEDS

PT UA
6 records

Maskaret

Active

Zea mays L. · Maize

Syngenta participation AG

IT
5 records

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT SK
4 records

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT UA
5 records

Starlord

Active

Zea mays L. · Maize

MAS SEEDS

LT
4 records

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