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 durum Desf. · Durum wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
Strube, D
Lolium multiflorum Lam. · Italian ryegrass
JOORDENS
Allium porrum L. · Leek
Hazera Seeds B.V.
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Lolium perenne L. · Perennial ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Linum usitatissimum L. · Common flax
KENASCHUK| Dr. E. Kenaschuk c/o Agriculture Canada Research Station / PHILIPP| Dr. O. Philipp
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION US
Poa pratensis L. · Kentucky bluegrass
ROSE-FRICKER| Crystal Rose-Fricker c/o Pure-Seed Testing, Inc.
Triticum aestivum L. · Bread wheat
TADEUSZ DRZAZGA / JAN NJRBA KOBIERZYCE
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
Przemyslaw Matysik
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
Limagrain UK
Hordeum vulgare L. · Barley
SEMUNDO| SW Seed GmbH
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Hordeum vulgare L. · Barley
Mark Glew
Hordeum vulgare L. · Barley
Claus Einfeldt
Triticum aestivum L. · Bread wheat
Limagrain Europe, F
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Hordeum vulgare L. · Barley
Secobra Recherches, FR
Dactylis glomerata L. · Cocksfoot
Institut National de la Recherche Agronomique I.N.R.A.