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.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Lolium multiflorum Lam. · Italian ryegrass
RAGT 2n
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
PRODANA SEEDS A/S (DK)
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Populus L. · Poplar
Institute for Forestry and Nature Research (NL)
Hordeum vulgare L. · Barley
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Beta vulgaris Fodder Beet Group · Mangelwurzel
DLF SEEDS A/S
Lolium multiflorum Lam. · Italian ryegrass
RUDLOFF CHRISTOPHER| Christopher Rudloff
Brassica oleracea L. (Broccoli Group) · Broccoli
Takada Seed Co, Ltd (JP)
Triticum aestivum L. · Bread wheat
Monsanto SAS
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Ribes nigrum L. · Blackcurrant
XCEF (CA)
Lolium multiflorum Lam. · Italian ryegrass
Joost Baert c/o ILVO - Plant-Toegepaste Genetica en Veredeling
Festuca pratensis Huds. · Meadow fescue
Malopolska Hodowla Roslin Spolka z o.o.
Hordeum vulgare L. · Barley
ROTHWELL PLANT BREEDERS (GB)/Nickerson SA (FR)
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
P.H. Petersen Saatzucht Lundsgaard GmbH (DE)
Festuca trachyphylla (Hack.) Hack. · Hard fescue
DLF Trifolium A-S, DK
Triticum aestivum L. · Bread wheat
Ets Claude Camille Benoist SA (FR)
Secale cereale L. · Rye
WORTMANN| Dr. H. Wortmann in Fa. Hybro Saatzucht GmbH & Co. KG
Triticum aestivum L. · Bread wheat
Boreal Plant Breeding
Rubus L. subg. Rubus · Blackberry
Stanisavlievic Miloljub
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG