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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.

SF6462

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT
1 record

SD 441

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Stat South Dakota (US)

FR
1 record

SARIC F 70

Terminated

Triticum aestivum L. · Bread wheat

SARH-INIA

ES
2 records

Scorpion

Terminated

Triticum aestivum L. · Bread wheat

Advanta Seeds UK Limited (GB)

FR
1 record

Scenic

Withdrawn

Hordeum vulgare L. · Barley

Florimond Desprez Veuve et Fils, FR

FR
1 record

Selim Sejet

Terminated

Hordeum vulgare L. · Barley

Hjortsholm, Kurt

SE
2 records

Savant II

Application submitted

Lolium perenne L. · Perennial ryegrass

Ledeboer Seed LLC

IT
1 record

SAMSON

Terminated

Lolium x hybridum Hausskn. · Hybrid ryegrass

INTERNATIONAL SEEDS INC

ES
1 record

SC3070

Withdrawn

Zea mays L. · Maize

Syngenta Crop Protection AG

IT
1 record

Sakini0

Withdrawn

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

PL
1 record

Safia

Active

Solanum tuberosum L. · Potato

Germicopa SA (FR)

FR
2 records

Santacandida

Application submitted

Triticum durum Desf. · Durum wheat

CARONE TOMMASO

IT
1 record

Rustrel

Terminated

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

FR
2 records

Rusticano

Active

Triticum L. · Wheat

MOLINELLI PAOLO

IT
1 record

RPB 181 70

Withdrawn

Triticum aestivum L. · Bread wheat

ROTHWELL P.B.

ES
1 record

SC1036

Withdrawn

Zea mays L. · Maize

Syngenta participation AG

IT
1 record

Rw Nadal

Terminated

Triticum aestivum L. · Bread wheat

RAGT CZECH S.R.O.

CZ
2 records

Saadi

Active

Triticum L. · Wheat

I.N.R.A. - INSTITUT NATIONALE DE LA RECHERCHE AGRONOMIQUE

IT
1 record

SAGVARI

Withdrawn

Triticum aestivum L. · Bread wheat

Gabonatermesztesi Kutato Intezet - Instit Rech Prod Cereales (HU)

FR
1 record

RW41862

Withdrawn

Triticum aestivum L. · Bread wheat

RAGT 2n

NL
1 record

RW20957

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

IT
1 record

Rustler F1

Terminated

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

Tom Natti

UA
1 record

ROSEPINK YODEBO

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

W. John LAYNG (US)

FR
1 record

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