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.
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM Clause, USA
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Asparagus officinalis L. · Asparagus
Ger Beemsterboer
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
x Triticosecale Wittm. ex A. Camus · Triticale
RAGT 2n
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
RAGT 2n
Triticum aestivum L. · Bread wheat
Syngenta UK Ltd
Avena sativa L. · Oat
Pflanzenzucht Oberlimpurg
Lolium perenne L. · Perennial ryegrass
David Johnston
Helianthus annuus L. · Sunflower
Ragt 2n, F
x Triticosecale Wittm. ex A. Camus · Triticale
Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)
x Triticosecale Wittm. ex A. Camus · Triticale
RAGT 2N S.A.S
Rosa L. · Rose
Poulsen Roser A/S
Triticum durum Desf. · Durum wheat
Co.Na.Se. Soc. Coop. Agr., Apsovsementi S.p.A.
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Lolium perenne L. · Perennial ryegrass
Pickseed West Inc (US)
Lolium x hybridum Hausskn. · Hybrid ryegrass
Agroscope, CH
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GMBH and CO.KG
Helianthus annuus L. · Sunflower
Radeka Ilija, Miklic Vladimir, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,
x Triticosecale Wittm. ex A. Camus · Triticale
Sejet Planteforaedling I,S
Zea mays L. · Maize
Pioneer Overseas Corporation/ Pioneer Hi-Bred International Inc., USA