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.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Salix L. · Willow
Stig Larsson
Lolium perenne L. · Perennial ryegrass
DEUTSCHE SAATVEREDELUNG AG
Lolium perenne L. · Perennial ryegrass
Tagro Cerveny Dvur s.r.o. (CZ)
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
Syngenta Crop Protection AG
Triticum aestivum L. · Bread wheat
Nordsaat Saatzucht GmbH Saatzucht Langenstein
Triticum aestivum L. · Bread wheat
Asur Plant Breeding SAS
Triticum aestivum L. · Bread wheat
Syngenta Participations AG
Helianthus annuus L. · Sunflower
Kotai Csaba, Dr. Janos Matuz,
Lolium multiflorum Lam. · Italian ryegrass
SOCIETE R.A.G.T.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
KENDELL HELLEWELL
Lolium x hybridum Hausskn. · Hybrid ryegrass
DLF Seeds A-S, DK
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Participations AG
Helianthus annuus L. · Sunflower
Galin Georgiev Georgiev
Triticum aestivum L. · Bread wheat
Nickerson International Research S.N.C.
Triticum aestivum L. · Bread wheat
Caussade Semences SA (FR)
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Agri-Saaten, D
Hordeum vulgare L. · Barley
Syngenta Crop Protection AG, CH
Asparagus officinalis L. · Asparagus
The State University of New Jersey - Rutgers (US)
Lolium perenne L. · Perennial ryegrass
DLF-Seeds A/S