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.
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Petr Klapste
Helianthus annuus L. · Sunflower
Pioneer Overseas Cor, USA
Festuca arundinacea Schreb. · Tall fescue
Pickseed USA, Inc. & Rutgers, The State University of New Jersey
Triticum aestivum L. · Bread wheat
HUN-REN Agrártudományi Kutatóközpont
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V.
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Lolium perenne L. · Perennial ryegrass
ILVO PLANT(APPLIED GENETICS+BREEDING)
Triticum aestivum L. · Bread wheat
Institute of field and vegetable crops, Novi Sad, Serbia
Festuca ovina L. · Sheep's fescue
Cebeco Seeds B. V.
Hordeum vulgare L. · Barley
FLORIMOND DESPREZ VEUVE ET FILS
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^Ottó Veisz^^^Gyula Vida^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros^^^Zoltán Bognár^^^László Láng
Triticum aestivum L. · Bread wheat
Blackman Agriculture Ltd
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Lolium perenne L. · Perennial ryegrass
ILVO-PLANT 39
Lolium perenne L. · Perennial ryegrass
MOMMERSTEEG INTERNATIONAL
Vicia faba L. · Broad bean
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Secale cereale L. · Rye
Nordic Seed Germany
Trifolium resupinatum L. · Persian clover
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Triticum aestivum L. · Bread wheat
LIMAGRAIN EUROPE
Triticum aestivum L. · Bread wheat
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Hordeum vulgare L. · Barley
LIMAGRAIN
Hordeum vulgare L. · Barley
Sejet Planteforaedling I,S
Hordeum vulgare L. · Barley
Unisigma GIE (FR)/Societe Europeenne de Semences NV/SA (BE)