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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.

Ionesco

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FR
6 records

INIA Cetus

Active

Lolium multiflorum Lam. · Italian ryegrass

INSTITUTO NACIONAL DE INVESTIGACION AGROPECUARIA (INIA)

PT
8 records

Hera

Active

Lolium multiflorum Lam. · Italian ryegrass

SAATZUCHT STEINACH GMBH and CO KG

DE
6 records

Hendrix

Active

Triticum aestivum L. · Bread wheat

Agri-Obtentions S.A., Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

FR
5 records

Heerup

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
5 records

Haristide

Active

Triticum durum Desf. · Durum wheat

Caussade Semences SA (FR)/HARDOUIN Jean Pierre (FR)

FR
5 records

HYT Max

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Elmar A. Weissmann

DE
6 records

Hakari

Active

Bromus sitchensis Trin. · Alaska brome

AgResearch (NZ)

FR
4 records

Hereford

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
9 records

Grande

Active

Festuca arundinacea Schreb. · Tall fescue

SEED RESEARCH OF OREGON

IT
5 records

Greenpioneer

Active

Poa pratensis L. · Kentucky bluegrass

Pieter Den Haan, Den Haan Zaden

DE
4 records

Grasslands Warrior

Active

Lolium multiflorum Lam. · Italian ryegrass

GRASSLAND TECHNOLOGY LTD

IT
6 records

Hemsut

Active

x Festulolium Aschers. et Graebn. · Festulolium

DLF SEEDS

CZ
5 records

Gladys

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

DE
6 records

Gwynett

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

DK
7 records

Groundforce

Active

Lolium perenne L. · Perennial ryegrass

Den Haan Zaden

CZ
4 records

Gleam

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

NL
7 records

GL Arabella

Active

Vicia faba L. · Broad bean

Saatzucht Gleisdorf

AT
6 records

Greenplanet

Active

Lolium perenne L. · Perennial ryegrass

Den Haan Zaden

CZ
4 records

Gildara

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

DE
6 records

Grazer Nova

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF Trifolium A/S -Dinamarca-

DE
5 records

Gray Wolf

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

CZ
4 records

Gouti

Active

Phaseolus vulgaris L. · Common bean

Monsanto Vegetable IP Management B.V.

NL
5 records

Gedser

Active

Triticum aestivum L. · Bread wheat

Nordic Seed A/S

DK
6 records

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