P8723
ActiveZea mays L. subsp. mays (Maize Group) · Maize
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.
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
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.
P8521
ActiveZea mays L. subsp. mays (Maize Group) · Maize
R400MR
ActiveZea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
P8688
TerminatedZea mays L. subsp. mays (Maize Group) · Maize
P7326
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P9170
ActiveZea mays L. subsp. mays (Maize Group) · Maize
KWS Polento
ActiveZea mays L. subsp. mays (Maize Group) · Maize
B2190
ActiveZea mays L. subsp. mays (Maize Group) · Maize
ES Harmonium
WithdrawnZea mays L. · Maize
DE
1 record
RGT Greatful
ActiveZea mays L. subsp. mays (Maize Group) · Maize
Sarolta
ActiveZea mays L. subsp. mays (Maize Group) · Maize
Grandio
ActiveZea mays L. subsp. mays (Maize Group) · Maize
Dobroto
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P8307
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P0900
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P7515
ActiveZea mays L. subsp. mays (Maize Group) · Maize
MIRAJ
TerminatedHordeum vulgare L. · Barley
HR
1 record
P9718E
ActiveZea mays L. subsp. mays (Maize Group) · Maize
DKC3939
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P9874
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P8523
ActiveZea mays L. subsp. mays (Maize Group) · Maize
P9071
ActiveZea mays L. subsp. mays (Maize Group) · Maize
Challenger del
ActiveZea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
P9537
ActiveZea mays L. subsp. mays (Maize Group) · Maize