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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.

Tungsten

Terminated

Festuca rubra L. · Red fescue

DEUTSCHE SAATVEREDELUNG AG

DE
4 records

Triptic

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Florimond Desprez Veuve et Fils, FR

FR
4 records

Tordis

Active

Salix viminalis L. · Basket willow

Stig Larsson

PL
3 records

Titere

Active

x Triticosecale Wittm. ex A. Camus · Triticale

SEMILLAS BATLLE S.A.

GR
3 records

Tima

Active

Festuca arundinacea Schreb. · Tall fescue

INIA-OTRI

ES
3 records

Trebelir

Active

Triticum aestivum L. · Bread wheat

Gesellschaft für goetheanistische Forschung e.V.

DE
4 records

Tobias

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

AT
4 records

Titouan

Active

Hordeum vulgare L. · Barley

Syngenta Seeds Limited (GB)

FR
4 records

Tilmor

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

PL
5 records

Tiroler

Active

Secale cereale L. · Rye

Amt der Tiroler Landesregierung

AT
3 records

Turbo

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

PL
4 records

Torenia

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

DE
4 records

Torcal

Active

x Triticosecale Wittm. ex A. Camus · Triticale

SEMILLAS BATLLE S.A.

GR
3 records

Tercie

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

CZ
5 records

Trisocle

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Florimond Desprez Veuve et Fils, FR

FR
4 records

Tentation

Terminated

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES S.A.S.

FR
4 records

Tengri

Active

Triticum aestivum L. · Bread wheat

Getreidezüchtung Peter Kunz Peter Kunz

DE
4 records

Tenace

Active

Lolium perenne L. · Perennial ryegrass

GIE GRASS (FR)

FR
4 records

Town Talk

Active

Chrysanthemum L. · Chrysanthemum

VAN DER KNAAP IR. J.

IT
3 records

Tario

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

SK
4 records

Taldor

Terminated

Triticum aestivum L. · Bread wheat

Groupement Agricole Essonnois (FR)

FR
5 records

Takeoff

Active

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

Illinois foundation Seeds, USA

NL
3 records

Tonuss

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

RAGT 2N S.A.S

FR
5 records

SZS Flavoury

Active

Lolium perenne L. · Perennial ryegrass

Christof Böhm in Fa. Saatzucht Steinach GmbH und Co KG

DE
4 records

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