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
Lantmannen SW Seed AB
Lolium perenne L. · Perennial ryegrass
DLF Trifolium A-S, DK
Helianthus annuus L. · Sunflower
Olivier Soulie
x Triticosecale Wittm. ex A. Camus · Triticale
SECOBRA RECHERCHES S.A.S
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM Clause, USA
Hordeum vulgare L. · Barley
Limagrain Europe, 63360 SAINT BEAUZIRE
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Triticum aestivum L. · Bread wheat
Michael Winzeler
Triticum durum Desf. · Durum wheat
Saatzucht Donau GmbH & Co.KG
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Vicia faba L. · Broad bean
RAGT 2N S.A.S
Lolium x hybridum Hausskn. · Hybrid ryegrass
DLF Seeds A/S, Dansk Planteforedling (DK)
Triticum aestivum L. · Bread wheat
ISEA S.R.L
Poa pratensis L. · Kentucky bluegrass
FORSCHUNGSANSTALT AGROSCOPE RECKENHOLZ
Hordeum vulgare L. · Barley
Syngenta Participations AG
Helianthus annuus L. · Sunflower
SYNGENTA SEEDS A.G.
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Triticum aestivum L. · Bread wheat
Ragt, F
Helianthus annuus L. · Sunflower
SOLTIS S.A.S
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Lolium perenne L. · Perennial ryegrass
Rutgers, the State University of New Jersey and Novel AG, Inc.
Festuca arundinacea Schreb. · Tall fescue
Beat Boller (CH)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Ger Beemsterboer
Festuca arundinacea Schreb. · Tall fescue
DLF Trifolium A-S, DK