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.

KWS Alicium

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

4 records

KWS Pertinent

Active

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

4 records

KWS Milaneco

Terminated

Triticum aestivum L. · Bread wheat

Erhard Ebmeyer^^^Reiner Bothe

4 records

Klasic

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

4 records

Kulula

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Elmar A. Weissmann

4 records

Kucyk

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

4 records

Ksymena

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

5 records

Kilopondio

Active

Triticum aestivum L. · Bread wheat

SEMILLAS BATLLE, S.A.

5 records

Kertag

Active

Avena sativa L. · Oat

Selgen

4 records

KG Magor

Active

Triticum aestivum L. · Bread wheat

Fazekas Miklos / Kovacs Erzsebet / Bosnyak Imre / Chrappan Gyoergy / Czimbalmas Agnes

4 records

KG Nagykun

Active

Hordeum vulgare L. · Barley

DE Agrártudományi Centrum Kutató Központja, Karcag

4 records

Kontesa

Terminated

Triticum aestivum L. · Bread wheat

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

3 records

Kamrat

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

4 records

Kamet

Active

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

HM Clause Inc (US)

3 records

Karla

Active

Triticum aestivum L. · Bread wheat

Agrigenetics d.o.o. (HR)

3 records

Karamu

Application submitted

Triticum aestivum L. · Bread wheat

CROP.RES.DIV.

4 records

Klara

Active

Salix L. · Willow

Stig Larsson

3 records

Kickstart

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

3 records

Kentucky Wonder Wax

Active

Phaseolus vulgaris L. · Common bean

GEBR

3 records

Jostine

Active

Ribes x nidigrolaria Rud. Bauer et A. Bauer · Jostaberry

Rolf Bauer

3 records

IZ Bori

Active

Hordeum vulgare L. · Barley

Marina Gramatikova, Dragomir Valchev, Radka Stamatova

4 records

Kestrel

Terminated

Hordeum vulgare L. · Barley

UNICORN PLANT BREEDERS

7 records

Integral

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

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

5 records

Jalon

Active

Helianthus annuus L. · Sunflower

EURALIS SEMILLAS, S.A.

3 records

1 2 ... 130 131 132 133 134 135 136 ... 262 263 Next

Jump to page 33 38 75 113 123 143 150 188 225 233

Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Verticillium wilt 12 175
Scab 12 064
Grey mold 7 316

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.