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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.

Mightier

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

PL
4 records

Mora

Active

Avena strigosa Schreb. · Black oat

Semillas Biscayart S.A.

IT
6 records

Moonlight SLT

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

IT
5 records

Mirador

Active

Festuca rubra L. · Red fescue

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Inge Gaue

DE
5 records

Mimer

Terminated

Festuca pratensis Huds. · Meadow fescue

W WEIBULL

SE
4 records

Matejko

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
6 records

Max

Active

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

Harris Morran, USA

HU
4 records

Mirza

Active

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

May Agro Tohumculuk SAN. TIC. AŞ., Turkey

BG
4 records

Midnight Star

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

IT
5 records

Malibu

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

DE
4 records

Mellara

Active

Lolium perenne L. · Perennial ryegrass

Instituut voor Landbouw- en Visserijonderzoek (ILVO) Eenheid Plant

NL
5 records

Merkator

Terminated

Lolium perenne L. · Perennial ryegrass

ILVO PLANT(APPLIED GENETICS+BREEDING)

BE
6 records

Melpaula

Active

Lolium perenne L. · Perennial ryegrass

ILVO PLANT(APPLIED GENETICS+BREEDING)

DE
5 records

Makrodur

Active

Triticum durum Desf. · Durum wheat

Südwestdeutsche Saatzucht GmbH&Co.KG

DE
5 records

Madonna

Active

Lolium multiflorum Lam. · Italian ryegrass

Peak Plant Genetics

PT
7 records

Meara

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

NL
5 records

Matt

Active

Triticum durum Desf. · Durum wheat

ARIZONA PLANT BREEDERS

GR
6 records

Marakas

Active

Triticum durum Desf. · Durum wheat

Florimond Desprez Veuve & Fils S.A.S

IT
5 records

Liseta

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

SK
5 records

Lyric

Terminated

Hordeum vulgare L. · Barley

Victor Desprez

FR
7 records

Maldive

Active

Solanum tuberosum L. · Potato

SARL L.S.A.

FR
6 records

Limabel

Active

Triticum aestivum L. · Bread wheat

NICKERSON INTERNATIONAL RESEARCH SNC

BE
6 records

Lidelta

Active

Lolium perenne L. · Perennial ryegrass

Euro Grass Breeding GmbH Co. KG

DE
7 records

LG Sundance

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL
6 records

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