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
Saaten Union, F
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Brassica oleracea L. (Broccoli Group) · Broccoli
SSC JP
Helianthus annuus L. · Sunflower
Euralis Semences, F
Helianthus annuus L. · Sunflower
Euralis Semences, F
Triticum aestivum L. · Bread wheat
Sarl Adrien Momont, FR
Secale cereale L. · Rye
Waldemar Brukwinski, 60% Katarzyna Banaszak, 40%
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Triticum aestivum L. · Bread wheat
S.A.S. Florimond Desprez Veuve & Fils
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)
Lolium perenne L. · Perennial ryegrass
PIET ARTS
Hordeum vulgare L. · Barley
P. Thomas Wymore
Poa pratensis L. · Kentucky bluegrass
Barenbrug USA
x Triticosecale Wittm. ex A. Camus · Triticale
LEMAIRE DEFFONTAINES S.A.S.
Solanum tuberosum L. · Potato
NORIKA NORDRING-KARTOFFELZUCHTUND VERMEHRUNGS GmbH
Festuca ovina L. · Sheep's fescue
Mommersteeg International BV (NL)
Koeleria macrantha (Ledeb.) Schult. · June grass
Barenbrug Holland BV (NL)
Festuca arundinacea Schreb. · Tall fescue
NIELS ROULUND
Festuca rubra L. · Red fescue
CANADIAN DEPT OF AGRICULTURE
Triticum durum Desf. · Durum wheat
Serasem, FR
Linum usitatissimum L. · Common flax
RUP «INSTITUT LNA»
Lolium perenne L. · Perennial ryegrass
Michael Norriss, PGG Wrightson Seeds Ltyd
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Lolium perenne L. · Perennial ryegrass
Steve Reid