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.
x Triticosecale Wittm. ex A. Camus · Triticale
Nordsaat Saatzuchtgesellschaft mbH
Triticum durum Desf. · Durum wheat
RUSTICA PROGRAIN G.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Helianthus annuus L. · Sunflower
Steve Thompson
Triticum aestivum L. · Bread wheat
SAATEN UNION RECHERCHE
Triticum aestivum L. · Bread wheat
Limagrain Belgium s.a.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Triticum durum Desf. · Durum wheat
UCA SEM.PROVENCE
Helianthus annuus L. · Sunflower
Steve Thompson
Triticum durum Desf. · Durum wheat
UCA SEM.PROVENCE
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Lolium perenne L. · Perennial ryegrass
DLF Seeds A-S, DK
Hordeum vulgare L. · Barley
Sejet Planteforaedling I,S
Helianthus annuus L. · Sunflower
SEEDECO Semences SRL (MD)
Helianthus annuus L. · Sunflower
Ragt 2n, F
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Avena sativa L. · Oat
Wiersum Plantbreeding B.V.
Lolium perenne L. · Perennial ryegrass
KWS UK LTD
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Poa pratensis L. · Kentucky bluegrass
PICKSEED WEST INC
Chrysanthemum L. · Chrysanthemum
Knaap, Jacques C. M. Van der|De Lier, Netherlands
x Triticosecale Wittm. ex A. Camus · Triticale
Elmar A. Weissmann
Lolium multiflorum Lam. · Italian ryegrass
JOORDENS ZAADHANDEL