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.
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Helianthus annuus L. · Sunflower
May Agro Seed Corporation (TR)
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros
Poa pratensis L. · Kentucky bluegrass
Pickseed USA, Inc. and Rutgers, The State University of New Jersey
Lolium perenne L. · Perennial ryegrass
Joost Baert
Festuca arundinacea Schreb. · Tall fescue
UNIVERSITY OF GENT
Allium porrum L. · Leek
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM.CLAUSE
Poa pratensis L. · Kentucky bluegrass
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
M. Francois Charpentier c/o REGA / Dr. Ulf Feuerstein
Triticum aestivum L. · Bread wheat
PHILIPPE MOMONT
Hordeum vulgare L. · Barley
KWS Lochow
Triticum aestivum L. · Bread wheat
Innoseeds B.V.
Triticum durum Desf. · Durum wheat
FLORIMOND DESPREZ VEUVE ET FILS
x Triticosecale Wittm. ex A. Camus · Triticale
LEMAIRE DEFFONTAINES S.A.S.
Festuca rubra L. · Red fescue
Limagrain Genetics Grandes Cultures SA (FR)
Solanum tuberosum L. · Potato
NORIKA Nordring-Kartoffelzucht-und Vermehrungs-GmbH Gross Luesewitz
Festuca arundinacea Schreb. · Tall fescue
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
Washington State University Office of Commercialization
Festuca arundinacea Schreb. · Tall fescue
R.V. FRAKES AND J.R. COWAN
Hordeum vulgare L. · Barley
SELGEN A.S
Lolium perenne L. · Perennial ryegrass
Grass G.I.E.
Helianthus annuus L. · Sunflower
MAY AGRO SEED COPR.