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Diseases

Helminthosporiosis

Bipolaris, Drechslera

Helminthosporiosis is a complex of plant diseases caused by fungi of various genera, manifested in the form of leaf spots, root rots, and seed infection. The disease leads to a significant reduction in the yield and quality of agricultural crops.

Mentioned in descriptions 3 441 varieties reference book.

Helminthosporiosis represents a group of diseases that manifest through the formation of leaf spots, the color and shape of which vary from light gray to dark brown with a distinct border. Under severe infection, spots coalesce, causing necrosis and drying of the leaf blade, and can also affect roots, stems, and grain, causing rots and darkening of the embryo.

Disease development is most intense in the presence of droplet moisture and air temperatures ranging from +20 to +30 degrees Celsius. The level of infection depends on the climatic conditions of the specific region, the degree of variety susceptibility, and the overall infectious background in the fields.

Variety resistance is ensured by the genetically determined ability of the plant to limit pathogen development, with resistance in some crops being directly linked to the cytoplasm type. During variety trials, resistance is assessed using scoring scales under field conditions, as well as by biotesting methods on selective media using fungal toxins.

Sources10

Breakdown by crop

Helminthosporium leaf blight of maize 613 Helminthosporium Leaf Blight of Maize 244 Helminthosporium leaf spot of barley 147 Helminthosporium leaf blight — sweet corn 134 Rice Helminthosporium Leaf Spot 31 Helminthosporium leaf blotch of oats 23 Helminthosporium leaf spot of perennial ryegrass 17 Helminthosporium leaf blight — common wheat 16 Helminthosporium leaf spot of Kentucky bluegrass 11 Sorghum Helminthosporium Leaf Blight 9 Helminthosporiosis of Opium Poppy 8 Helminthosporium leaf spot — Popcorn 7 Helminthosporium leaf spot of triticale 4 Helminthosporiosis in naked oats 4 Helminthosporium Leaf Blight of Maize 4 Helminthosporium leaf spot of tall fescue 3

Found in these crops

Maize 452 Maize 184 Barley 64 Sweet corn 34 Rice 17 Bread wheat 15 Kentucky bluegrass 12 Perennial ryegrass 12 Oat 12 Sorghum 9 Opium poppy 7 Naked oat 3

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

MDM2505

Application submitted

Zea mays L. · Maize

MAS SEEDS

IT
1 record

Margot

Terminated

Hordeum vulgare L. · Barley

Unisigma GIE (FR)/Advanta Belgium BVBA-SPRL (BE)

FR
3 records

LZM 273/84

Withdrawn

Zea mays L. · Maize

LIMAGRAIN EUROPE S.A.

IT
1 record

KXC0381

Active

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT
1 record

LDP 25

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Maisadour Societe Cooperative Agricole (FR)

FR
1 record

Ismene

Withdrawn

Hordeum vulgare L. · Barley

NORD| NORDSAAT Agrargesellschaft mit beschraenkter Haftung

DE
1 record

EQ3811

Withdrawn

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

EQ3472

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

Dyvo Nosivshchyny

Active

Hordeum vulgare L. · Barley

Dvorska Svitlana Volodymyrivna, Buniak Nataliia Mykhailivna, Buniak Nataliia Mykolaivna, Sardak Mariia Ivanivna, Sardak Mykrla Oleksiiovych,

UA
2 records

Avhur

Active

Hordeum vulgare L. · Barley

Solonechnyi Pavlo Mykolaiovych, Vazhenina Ol`ha IEvheniivna, Naumov Oleksii Hermanovych, Vasko Nataliia Ivanivna, Kozachenko Mykhailo Romanovych,

UA
2 records

AS 33035

Terminated

Zea mays L. · Maize

Frederic Poujeaud

UA
2 records

SUM 305

Active

Zea mays L. subsp. mays (Maize Group) · Maize

2 records

37 A 3

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Caussade Semences SA (FR)

FR
1 record

SY Elias

Active

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
1 record

P9074E

Active

Zea mays L. subsp. Mays · Corn

UA
1 record

Pallidum 77

Application submitted

Hordeum vulgare L. · Barley

UA
1 record

Husky

Active

Papaver somniferum L. · Opium poppy

CZ
1 record

Hanacky modry

Terminated

Papaver somniferum L. · Opium poppy

SK
1 record

Argo

Terminated

Zea mays L. · Maize

IT
1 record

SY Torino

Active

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

 P1015

Withdrawn

Zea mays L. · Maize

Pioneer Genetique SARL

PT
1 record

P9027 1203

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

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