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.
Helianthus annuus L. · Sunflower
Pacific Seeds Pty Ltd
Helianthus annuus L. · Sunflower
Roberto Reid
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Triticum aestivum L. · Bread wheat
Saaten Union Recherche SARL, Estrées-Saint -Denis FR
Helianthus annuus L. · Sunflower
Jockovic Milan, Imerovski Ivana, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,
Lolium multiflorum Lam. · Italian ryegrass
WRIGHTSON PAS S.A.
Coffea arabica L. · Arabica coffee
HANS JURGEN EVERS (T)
x Triticosecale Wittm. ex A. Camus · Triticale
NORDSAAT Saatzuchtgesellschaft mit beschränkter Haftung Herrn Dr. Ralf Schachschneider
Helianthus annuus L. · Sunflower
Jean Pierre Dufourcq
Helianthus annuus L. · Sunflower
UPL FRANCE
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
KENDELL HELLEWELL
Helianthus annuus L. · Sunflower
Lidea France S.A.S
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Monsanto Vegetable, NL
Avena sativa L. · Oat
Sebastien Cuvelier, RAGT 2n
Solanum tuberosum L. · Potato
IPR B.V.
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE
Secale cereale L. · Rye
WILDE PEER
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Triticum aestivum L. · Bread wheat
Hybrinova Sa (FR)
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V.
x Triticosecale Wittm. ex A. Camus · Triticale
Institut National de la Recherche Agronomique I.N.R.A.
Phleum pratense L. · Timothy grass
IGER Institute of Grassland & Environmental Research (GB)
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
SYNGENTA SEEDS B.V.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V.