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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

Found in these crops

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.

Rubli

Terminated

Triticum aestivum L. · Bread wheat

Dario Fossati

2 records

Anigozanthos flavidus DC. · Tall kangaroo paw

Ramm Botanicals Holdings Pty Ltd

2 records

Rosa L. · Rose

William J. Radler

2 records

Anigozanthos bicolor x Anigozanthos humilis

Ramm Botanicals Holdings Pty Ltd

2 records

Rosa L. · Rose

Poulsen Roser A/S

2 records

Salix schwerinii E.L. Wolf x S. viminalis L

Rothamsted Research Ltd.

2 records

Polkura

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

Dario Fossati

4 records

Radwire

Active

Rosa L. · Rose

William J. Radler

3 records

Pobo Red

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

PH3GK

Protection expired

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

2 records

Rosa L. · Rose

Poulsen Roser A/S

2 records

Rosa L. · Rose

Poulsen Roser A/S

2 records

Monterey

Active

Triticum aestivum L. · Bread wheat

Limagrain UK

5 records

Nordica

Terminated

Linum usitatissimum L. · Common flax

Cooperative Liniere de Fontaine-Cany

3 records

x Heucherella H. R. Wehrh. · Foamy bells

Gossett Gary J.|Portland, OR, US

2 records

Muur

Active

Populus L. · Poplar

Eigen Vermogen van het Instituut voor Natuur- en Bosonderzoek (EV-INBO)

2 records

Nairobi

Active

Vicia faba L. · Broad bean

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

2 records

Millennium

Terminated

Avena sativa L. · Oat

INSTITUTE OF GRASSLAND AND ENVIRONMENTAL RESEARCH

3 records

Methyra

Active

Hypericum L. · St. John's wort

Marc Etienne

2 records

Rosa L. · Rose

Meilland Alain A.

3 records

Rosa L. · Rose

Alain Antoine Meilland

2 records

Monber

Active

Juniperus L. · Juniper

BERGMAN WILLIS

2 records

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