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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

Found in these crops

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.

Belalur

Active

Triticum durum Desf. · Durum wheat

1 record

Avenue

Terminated

Avena nuda L. · Naked oat

1 record

Dayton

Active

Malus domestica (Suckow) Borkh. · Apple

2 records

Açores

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

CEPPA

Active

Castanea sativa Mill. · Sweet chestnut

1 record

CARELLA

Active

Malus domestica (Suckow) Borkh. · Apple

1 record

Prunus domestica L. · European plum

1 record

Miras

Terminated

Triticum aestivum L. · Bread wheat

EE
1 record

Torridon

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

CZ
1 record

Zoluska

Withdrawn

Triticum aestivum L. · Bread wheat

HU
1 record

Veronica

Terminated

Helianthus annuus L. · Sunflower

IT
1 record

Veles

Terminated

Avena sativa L. · Oat

SK
1 record

Turi

Active

Triticum aestivum L. · Bread wheat

UA
2 records

Simeto

Active

Triticum L. · Wheat

IT
1 record

Triticum aestivum L. · Bread wheat

UA
2 records

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