Diseases

Rust

Pucciniales

Rust is a group of dangerous fungal diseases manifesting as pustules on plant organs. The disease significantly reduces yield by disrupting photosynthesis and increasing transpiration.

Mentioned in descriptions 14 859 varieties reference book.

Rust is a collective name for a group of fungal diseases whose pathogens belong to the order Pucciniales. Outwardly, the disease manifests as the formation of pustules on leaves, stems, and other parts of plants—cushions of orange, brown, or black color containing pathogen spores.

Active development of the disease depends on weather conditions, primarily high humidity in the form of dew, fog, or precipitation, and specific temperature ranges unique to each rust species. Additional risk factors include crop density, the presence of plant residues, and the proximity of alternate hosts necessary for the development of certain fungal species.

The evaluation of cultivar resistance in variety trials is carried out under natural or artificial infectious backgrounds during the milk stage by recording the percentage of infection on the flag leaf surface. Based on the data obtained, accessions are classified as immune, resistant, or susceptible, and molecular analysis methods are used to identify resistance genes, such as Lr34.

Sources10

Breakdown by crop

Rust of common wheat 1 722 Barley rust 466 Rust on perennial ryegrass 377 Sunflower rust 362 Triticale rust 294 Rust of Durum Wheat 268 Oat crown rust 182 Rust of sweet corn 157 Rust of rye 116 Bean rust 114 Rose Rust 114 Rust of Kentucky Bluegrass 110 Rust of Italian ryegrass 109 Apple Rust 106 Rust of tall fescue 104 Maize rust 77 Pear Rust 70 Rust of Italian Ryegrass 70 White Rust of Chrysanthemum 59 Rust of sugar beet 59 Rust on Black Currant 52 Leek Rust 52 Rust of Faba Bean 39 Rust of Faba Bean 38

Found in these crops

Bread wheat 1 739 Barley 468 Perennial ryegrass 378 Sunflower 368 Triticale 295 Durum wheat 269 Oat 183 Sweet corn 158 Rye 116 Common bean 115 Rose 114 Kentucky bluegrass 110

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.

Mecenas

Active

Beta vulgaris Sugar Beet Group · Sugar beet

DLF Beet Seed APS

2 records

Meikinba

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

Maestro F1

Application submitted

Daucus carota L. · Carrot

Vilmorin & Cie

4 records

Magseed

Terminated

Rosa L. · Rose

MOORE RALPH

2 records

Maris canon

Terminated

Hordeum vulgare L. · Barley

Plant Breeding International Cambridge Ltd (GB)

3 records

Lutétia

Protection expired

Dactylis glomerata L. · Cocksfoot

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

MASmabay

Protection expired

Rosa L. · Rose

Roseraies Pierre Guillot, Roseraies Pierre Guillot

2 records

Maria del Mar

Terminated

Gossypium hirsutum L. · Upland cotton

JUNTA DE ANDALUCIA CONSEJERIA DE AGRICULTURA Y, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)

3 records

Manera odes`ka

Active

Triticum aestivum L. · Bread wheat

Parfentiev Mykhailo Hryhorovych, Teterina Olena Mykolaivna, Reshetnikova Valentyna Semenivna, Topal Mykola Mykolaiovych, Lytvynenko Raisa Ivanivna, Solomonov Ruslan V'iacheslavovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Honcharuk Nina

3 records

Lovalie

Terminated

Solanum tuberosum L. · Potato

Station de Recherche du Comité Nord G.I.E.

3 records

Loosdorfer Austro Bankut Grannen

Application submitted

Triticum aestivum L. · Bread wheat

Saatzucht Piatti

2 records

Logidur

Terminated

Triticum durum Desf. · Durum wheat

Saatzucht Donau GmbH & Co.KG

3 records

Locobelo

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

SEMILLAS BATLLE, S.A.

2 records

Maralim

Active

Asparagus officinalis L. · Asparagus

Limgroup B.V.

4 records

LG Slovan

Active

Hordeum vulgare L. · Barley

Limagrain Europe S.A.S

3 records

Lipoplus

Terminated

Avena sativa L. · Oat

Mattsson Bengt

3 records

MALA ABED

Protection expired

Hordeum vulgare L. · Barley

THE ABED FOUNDATION

4 records

Maksyma odeska

Active

Triticum aestivum L. · Bread wheat

Ihnatovskyi Oleksandr Oleksandrovych, Babaiants Olha Vadymivna, Khodakova Tetiana Mykolaivna, Parfentiev Mykhailo Hryhorovych, Lytvynenko Raisa Ivanivna, Maksymov Mykola Havrylovych, Lytvynenko Mykola Antonovych,

3 records

Lightning

Terminated

Triticum aestivum L. · Bread wheat

Limagrain UK

2 records

Maczo

Active

Avena nuda L. · Naked oat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

2 records

LG3490

Active

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

Limagrain Europe, FR

2 records

Lentillon Rose d'Hiver

Active

Lens culinaris Medik. · Lentil

Domaine Public (FR)

2 records

Lofty Nijo

Terminated

Hordeum vulgare L. · Barley

Sapporo Breweries Ltd. (JP)

2 records

La Posta del Pergamino

Active

Bromus catharticus Vahl · Rescue grass

SEMILLAS BISCAYART S.A.

3 records

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Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Verticillium wilt 12 175
Scab 12 064
Grey mold 7 316

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.