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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.

Vivaro

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF Seeds A/S

DE
4 records

Vivier

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Florimond Desprez Veuve et Fils, FR

FR
5 records

Xtender

Active

Festuca arundinacea Schreb. · Tall fescue

Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey

CZ
4 records

WPB Elyann

Active

Avena sativa L. · Oat

Wiersum Plantbreeding BV, 9670 AA Winschoten

NL
5 records

Vespucci

Active

Triticum durum Desf. · Durum wheat

Co.Na.Se. Soc. Coop. Agr., Apsovsementi S.p.A.

IT
5 records

Vitaton

Active

Allium porrum L. · Leek

NUNHEMS

NL
6 records

Verace

Active

Triticum durum Desf. · Durum wheat

Syngenta Participations AG

IT
5 records

Vifelt

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

NL
6 records

Ventina

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GmbH&Co.KG

DE
5 records

Vanna

Protection expired

Triticum aestivum L. · Bread wheat

MONSANTO TECHNOLOGY

HR
4 records

Vanilla

Active

Phaseolus vulgaris L. · Common bean

Vilmorin SA (FR)

FR
4 records

Varuna

Active

Solanum tuberosum L. · Potato

Justus Bohm

DE
6 records

Verlight

Active

Festuca arundinacea Schreb. · Tall fescue

Jouffray-Drillaud SA (FR)

FR
6 records

Trimulato

Active

Triticum durum Desf. · Durum wheat

SEMILLAS BATLLE, S.A.

ES
5 records

Tribeca

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Florimond Desprez Veuve et Fils, FR

FR
6 records

Trapero

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

PL
7 records

Tricanto

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Saatzucht Donau GmbH & Co.KG

AT
5 records

Torch

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK
6 records

Tirem

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

CZ
4 records

Triwarwic

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

DE
7 records

Timber

Terminated

Triticum aestivum L. · Bread wheat

SAATEN UNION RECHERCHE

HU
5 records

Trapez

Terminated

Triticum aestivum L. · Bread wheat

Saatzucht Josef Breun GdbR (DE)

FR
5 records

Tiezo

Active

Phaseolus vulgaris L. · Common bean

Monsanto Vegetable IP Management B.V.

NL
5 records

Trooper

Terminated

Hordeum vulgare L. · Barley

Syngenta Participations AG

DE
6 records

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