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.
Triticum aestivum L. · Bread wheat
Reiner, Bothe Erhard, Ebmeyer
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
Pacific Seeds Pty Ltd
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR
Triticum aestivum L. · Bread wheat
Saaten Union Recherche SARL, Estrées-Saint -Denis FR
Lolium perenne L. · Perennial ryegrass
RAGT SA (FR)
Solanum tuberosum L. · Potato
Saka-Ragis (DE)
Hordeum vulgare L. · Barley
Secobra Recherches, FR
Hordeum vulgare L. · Barley
KWS Lochow
Triticum aestivum L. · Bread wheat
Florimond Desprez, F
Lolium perenne L. · Perennial ryegrass
DLF-Seeds A/S
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Triticum aestivum L. · Bread wheat
Graminor AS, N-2322 Ridabu
Lolium perenne L. · Perennial ryegrass
DLF Seeds A-S, DK
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Triticum aestivum L. · Bread wheat
SEJET PLANT BREEDING
Lolium perenne L. · Perennial ryegrass
RAGT 2N S.A.S
Triticum durum Desf. · Durum wheat
Eurogen srl (IT)
Avena sativa L. · Oat
Mattsson Bengt
Hordeum vulgare L. · Barley
Deutsche Saatveredelung, D