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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.

Diadora

Active

Hordeum vulgare L. · Barley

DEUTSCHE SAATVEREDELUNG AG

DE
5 records

Descartes

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FR
5 records

Desert Moon

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

DE
5 records

Cutter II

Active

Lolium perenne L. · Perennial ryegrass

PICKSEED

IT
6 records

Coletta

Active

Lolium perenne L. · Perennial ryegrass

SAATZUCHT STEINACH GMBH and CO KG

DE
7 records

Craft

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

DE
7 records

Cordiale

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

FR
7 records

Dark Pink Gin

Protection expired

Chrysanthemum L. · Chrysanthemum

Lintott, Keith|Bognor Regis, England

NL
4 records

Citation III

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

CZ
4 records

C/W 74

Active

Carthamus tinctorius L. · Safflower

RO
5 records

Claudine

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

NL
7 records

Cortez

Active

Festuca arundinacea Schreb. · Tall fescue

Ampac Seed Company

ES
5 records

Cervinia

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GmbH&Co.KG

DE
5 records

Contur

Terminated

Triticum aestivum L. · Bread wheat

SAATZUCHT JOSEF BREUN GMBH and CO.KG

DK
7 records

Capello

Active

Vicia villosa Roth · Hairy vetch

SOUTH AUSTRALIAN SEED GROWERS CO-OPERATIVE LTD

IT
5 records

Cannizzo

Active

Triticum durum Desf. · Durum wheat

EUROGEN SRL

IT
5 records

Chettle Charm

Active

Campanula L. · Bellflower

Patrick Bourke

NL
4 records

Caddieshack

Active

Lolium perenne L. · Perennial ryegrass

JACKLIN SEED

ES
4 records

Chablis

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE
7 records

Caversham

Active

Lolium multiflorum Lam. · Italian ryegrass

Capstone Seeds South Africa (Pty) Ltd

PT
7 records

Central

Active

Medicago sativa L. · Alfalfa

Natura Srl

IT
4 records

Boudica

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

NL
6 records

Cavalier

Active

Triticum aestivum L. · Bread wheat

WORLD WIDE WHEAT L.L.C.

ES
4 records

Brancaleone

Active

Triticum durum Desf. · Durum wheat

CO.NA.SE SOC.COOP.AGR

IT
5 records

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