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.
x Triticosecale Wittm. ex A. Camus · Triticale
Stephanie Franck
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta, NL
Asparagus officinalis L. · Asparagus
Ger Beemsterboer
Hordeum vulgare L. · Barley
Carlsberg A/S Group Research (DK)
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES SEMENCES
Lolium perenne L. · Perennial ryegrass
Carneau Freres SA (FR)
Hordeum vulgare L. · Barley
Saatzucht Donau GmbH & Co.KG
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Hordeum vulgare L. · Barley
NORDSAAT Saatzucht GmbH Frau Dr. Lissy Kuntze
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Hordeum vulgare L. · Barley
Claus Einfeldt
Lolium multiflorum Lam. · Italian ryegrass
VICSEEDS
Triticum aestivum L. · Bread wheat
Svensson, Gunnar/Jönsson, Jan Ö
Lolium perenne L. · Perennial ryegrass
DLF B.V.
Lolium perenne L. · Perennial ryegrass
SEMENCES DE FRANCE
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE D and S GMBH
Lolium perenne L. · Perennial ryegrass
Teagasc
Lolium multiflorum Lam. · Italian ryegrass
BARENBRUG HOLLAND
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V.
Lolium perenne L. · Perennial ryegrass
Carneau Freres SA Eurogazon (FR)
Lolium perenne L. · Perennial ryegrass
Lukas H. Wolters c/o Euro Grass BV
Avena sativa L. · Oat
Serasem S.A.S.