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.

Pedroso

Active

Triticum durum Desf. · Durum wheat

SEMILLAS BATLLE, S.A.

3 records

P0640

Active

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

PIONEER HI-BRED INTERNATIONAL

2 records

Otaman

Active

Triticum aestivum L. · Bread wheat

Parfentiev Mykhailo Hryhorovych, Babaiants Lazar Tihranovych, Bosakovs`ka Nataliia IUr`iivna, Bredyns`ka Nadiia Stepanivna, Fedchenko Volodymyr Pavlovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,

3 records

Partizanka

Terminated

Triticum aestivum L. · Bread wheat

INST.NOVI SAD

3 records

Oktava odes`ka

Active

Triticum aestivum L. · Bread wheat

Babaiants Ol`ha Vadymivna, Syvolap IUrii Mykhailovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan Viacheslavovych, Lytvynenko Raisa Ivanivna, Rubakha Serhii Andriiovych, Holub IEvheniia Anatoliivna, Honcharuk Nina Oleksandrivna, Topal Mykola Mykol

3 records

Paloma

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

2 records

NS-H-6046

Active

Helianthus annuus L. · Sunflower

Dusanic Nenad, Gvozdenovic Sandra, Jocic Sinisa,

4 records

Pallini

Active

Avena sativa L. · Oat

HAO-DEMETER - Cereal Institute

2 records

Overland F1

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds

3 records

Notilus

Active

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

2 records

NS H 7902

Active

Helianthus annuus L. · Sunflower

Terzic Sreten, Radeka Ilija, Dedic Bosko, Jockovic Milan, Cvejic Sandra, Jocic Sinisa,

3 records

NS H 1752

Active

Helianthus annuus L. · Sunflower

Miladinovic Dragana, Miklic Vladimir, Dusanic Nenad, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

3 records

Oberkärntner

Active

Secale cereale L. · Rye

Kärntner Saatbau reg.Gen.m.b.H.

3 records

NS H 7901

Active

Helianthus annuus L. · Sunflower

Miladinovic Dragana, Radeka Ilija, Dedic Bosko, Jockovic Milan, Cvejic Sandra, Jocic Sinisa,

3 records

NS-H-6059

Active

Helianthus annuus L. · Sunflower

Radic Velimir, Gvozdenovic Sandra, Jocic Sinisa,

4 records

NS H 556

Active

Helianthus annuus L. · Sunflower

Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

3 records

Northern Xtra Sweet

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Illinois Foundation Seeds

3 records

NS H 7917

Active

Helianthus annuus L. · Sunflower

Dimitrijevic Aleksandra, Radeka Ilija, Dedic Bosko, Jockovic Milan, Cvejic Sandra, Jocic Sinisa,

3 records

NS-H-6044

Active

Helianthus annuus L. · Sunflower

Miclic Vladimir, Marinkovic Radovan, Gvozdenovic Sandra, Jocic Sinisa,

4 records

NS H 195

Active

Helianthus annuus L. · Sunflower

Radic Velimir, Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Tsveich Sandra, Jocic Sinisa,

3 records

Okhtyrchanka iuvileina

Active

Triticum aestivum L. · Bread wheat

Nedozim Andrii IUriiovych, Panov Oleksandr Ihorovych, Vlasenko Svitlana Volodymyrivna, Ivanov IUrii Mykolaiovych,

5 records

Neo

Application submitted

Hordeum vulgare L. · Barley

InterGrain Pty Ltd

2 records

Obrazets 666

Active

Vicia sativa L. · Common vetch

Marin Pehlivanov

2 records

Okapi

Active

Phaseolus vulgaris L. · Common bean

Syngenta Crop Protection AG

4 records

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Diseases

Powdery mildew 33 570
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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.