Diseases
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.
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.
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Triticum aestivum L. · Bread wheat
Sarl Adrien Momont et Fils, F
Lolium multiflorum Lam. · Italian ryegrass
LIMAGRAIN GENETICS S.A.
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Triticum aestivum L. · Bread wheat
Florimond Desprez Veuve et Fils, FR
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Dactylis glomerata L. · Cocksfoot
FAL Station de Recherche Agronomique Federale (CH)
x Triticosecale Wittm. ex A. Camus · Triticale
RAGT SA (FR)
Triticum aestivum L. · Bread wheat
Minnesota Agricultural Experiment Station
Lolium perenne L. · Perennial ryegrass
Limagrain Genetics Grandes Cultures SA (FR)
Lolium perenne L. · Perennial ryegrass
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
Lukas H. Wolters c/o Euro Grass BV
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Lolium perenne L. · Perennial ryegrass
DSV Zaden Nederland B.V.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V.
Festuca rubra L. · Red fescue
DLF Seeds A/S
Poa pratensis L. · Kentucky bluegrass
DLF Trifolium A-S, DK
Triticum aestivum L. · Bread wheat
Verneuil Recherche SA (FR)
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Triticum aestivum L. · Bread wheat
Výzkumné Centrum Selton s.r.o., Selgen A.S.
Lolium perenne L. · Perennial ryegrass
PYNE GOULD GUINESS LTD.
Hordeum vulgare L. · Barley
SAATZUCHT STRENG-ENGELEN GMBH&CO. KG
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GmbH&Co.KG