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.

TANORI 71

Withdrawn

Triticum aestivum L. · Bread wheat

MAHISSA

1 record

Tifi

Terminated

Triticum monococcum L. · Einkorn wheat

Dr. Karl-Josef Müller

1 record

TANORI F 71

Terminated

Triticum aestivum L. · Bread wheat

SARH-INIA

2 records

TARGET

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

FIDES BEHEER BV (NL)

1 record

Taiher

Active

Helianthus annuus L. · Sunflower

Skakunenko, Vladyslava

2 records

TESIA F 79

Terminated

Triticum aestivum L. · Bread wheat

SARH-INIA

1 record

Tanyrolf

Terminated

Rosa L. · Rose

EVERS HANS-JUERGEN| Hans-Juergen Evers

1 record

TIGER

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

FIDES BEHEER BV (NL)

1 record

Szelejewska

Terminated

Phleum pratense L. · Timothy grass

Hodowla Roslin Szelejewo sp.z.o.o.

1 record

Sweet Aurora

Application submitted

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

Illinois Foundation Seeds

1 record

Svit Laki

Active

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

Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"

2 records

TESOPACO

Withdrawn

Triticum aestivum L. · Bread wheat

CIANO (MX)

1 record

Taifun

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

Lochow-Petkus GmbH Herrn Dr. Klaus Brunckhorst

2 records

Sviatkova

Terminated

Triticum aestivum L. · Bread wheat

Koliuchyi Vasyl` Trokhymovych, Marynka Svitlana Mykolaivna, Basanets` Hanna Stepanivna, Bershads`ka Liudmyla Petrivna, Kyrylenko Vira Viktorivna, Dubovyi Volodymyr Ivanovych, Remeslo Volodymyr Vasyl`ovych, Shelepov Volodymyr Vasyl`ovych, Holyk Liubov Myko

2 records

Techlovan 2

Active

Prunus avium (L.) L. · Sweet cherry

Matsenko Maksym Oleksandrovych

2 records

Tadeo

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp z.o.o. (PL)

1 record

SURREY II

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF-TRIFOLIUM DANSK PLANTEFORAEDLING

1 record

Sunbird

Withdrawn

Helianthus annuus L. · Sunflower

PANAM FRANCE SARL, FR

1 record

Sweet Paradise

Active

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

Sergio Nieto

2 records

Svoboda kharkivska

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Shcechenko Olha IEvheniivna, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Chernobai Serhii Volodymyrovych, Riabchun Viktor Kuzmych,

2 records

Stina

Terminated

Salix viminalis L. · Basket willow

Stig Olof Larsson

2 records

STR456

Terminated

Helianthus annuus L. · Sunflower

Seedtec International Inc (US)

1 record

Sterno

Terminated

Avena sativa L. · Oat

Tarasenko Oleksandr Anatoliiovych, Sten`ko Volodymyr Illich, Solodushko Vira Pylypivna, Liaschenko Oleksandr Ivanovych,

2 records

Starshine F1

Terminated

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

Steve Grin

1 record

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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.