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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.

Convento C

Active

Triticum aestivum L. · Bread wheat

DE
1 record

Artemisio

Application submitted

Capsicum annuum L. · Bell pepper

HU
1 record

Chlumecka 12

Terminated

Triticum aestivum L. · Bread wheat

SK
1 record

CAIA

Withdrawn

Triticum aestivum L. · Bread wheat

INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.

PT
1 record

Berillo

Active

Triticum L. · Wheat

IT
1 record

Celtica

Application submitted

Hordeum vulgare L. · Barley

DE
1 record

Brigadeer

Terminated

Phaseolus vulgaris L. · Common bean

NL
1 record

Bagaméri 93/1

Active

Armoracia rusticana P. Gaertn. et al. · Horseradish

HU
1 record

Boston F1

Terminated

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

UA
1 record

Caramelo

Active

Zea mays L. · Maize

UA
2 records

Bosakin

Protection expired

Hypericum x inodorum Mill. · Tall tutsan

NL
1 record

Canove

Application submitted

Triticum aestivum L. · Bread wheat

IT
1 record

Alauda

Active

Triticum aestivum L. · Bread wheat

DE
1 record

Bettina

Active

Triticum aestivum L. · Bread wheat

SK
1 record

Berillo

Terminated

Triticum durum Desf. · Durum wheat

IT
1 record

BUGADERA

Application submitted

Ceratonia siliqua L. · Carob

ES
1 record

Bokrastrip

Protection expired

Mahonia repens (Lindl.) G. Don · creeping barberry

NL
1 record

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