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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.

BULWARK

Terminated

Avena sativa L. · Oat

IE
3 records

Borratxona

Active

Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage

ES
2 records

Békési fehér

Protection expired

Phaseolus vulgaris L. · Common bean

HU
2 records

Ashley

Active

Spinacia oleracea L. · Spinach

NL
2 records

Agora

Terminated

Raphanus sativus L. var. sativus · Radish

NL
2 records

AF Cesar

Active

Hordeum vulgare L. · Barley

CZ
3 records

Azizia

Active

Triticum durum Desf. · Durum wheat

IT
2 records

Alrese

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

DE
2 records

Barpitosa

Terminated

Deschampsia cespitosa (L.) P. Beauv. · Tufted hairgrass

NL
2 records

Agawam

Active

Rubus L. subg. Rubus · Blackberry

EE
2 records

Abran

Terminated

Cucumis melo L. · Melon

NL
2 records

Aston

Active

Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley

CZ
2 records

Asiago

Terminated

Triticum aestivum L. · Bread wheat

IT
2 records

Aprimira

Active

Prunus domestica L. · European plum

DE
4 records

Ance

Active

Prunus domestica L. · European plum

LV
2 records

Albi

Protection expired

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

CZ
2 records

Akane

Application submitted

Malus Mill. · Apple

SK
2 records

Numida

Active

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

2 records

Sistem

Active

Hordeum vulgare L. · Barley

2 records

GK Csörnöc

Terminated

Triticum aestivum L. · Bread wheat

2 records

Enterprise

Active

Malus domestica (Suckow) Borkh. · Apple

5 records

GK Jutka

Terminated

Triticum aestivum L. · Bread wheat

2 records

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