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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.

Dano

Active

Populus L. · Poplar

2 records

Garden Bing

Active

Prunus avium (L.) L. · Sweet cherry

2 records

Gala 0502B

Active

Malus domestica (Suckow) Borkh. · Apple

2 records

Bandolero

Terminated

Triticum aestivum L. · Bread wheat

2 records

Hysun 158T

Active

Helianthus annuus L. · Sunflower

2 records

Apullum

Terminated

Triticum aestivum L. · Bread wheat

2 records

Dor F

Active

Triticum aestivum L. · Bread wheat

2 records

Abritus

Terminated

Phaseolus vulgaris L. · Common bean

2 records

Vanda

Protection expired

Zea mays L. · Maize

SK
2 records

Tremolo

Active

Lolium perenne L. · Perennial ryegrass

CZ
3 records

Talisman

Active

Trisetum flavescens (L.) P. Beauv. · Golden oat grass

CZ
3 records

Svitava

Terminated

Triticum aestivum L. · Bread wheat

CZ
2 records

PS Kvalitas

Active

Triticum aestivum L. · Bread wheat

SK
3 records

PS Agneska

Active

Triticum aestivum L. · Bread wheat

SK
3 records

Požegača

Active

Prunus domestica L. · European plum

SI
4 records

Merlin

Active

Vicia faba L. · Broad bean

SK
3 records

Markola

Protection expired

Triticum aestivum L. · Bread wheat

SK
3 records

Macho

Active

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

DE
2 records

Maxi

Active

Panicum miliaceum L. · Proso millet

HU
3 records

IS Solaris

Terminated

Triticum aestivum L. · Bread wheat

SK
3 records

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