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
Syngenta Participations,CH
Pisum sativum L. · Pea
Toft Plant Breeding APS
Poa pratensis L. · Kentucky bluegrass
DLF SEEDS A/S
Solanum tuberosum L. · Potato
Temmerman Handels
Festuca pratensis Huds. · Meadow fescue
FEUERSTEIN ULF / STELLING DIETER
Avena strigosa Schreb. · Black oat
Panam France sarl (FR)/Panam Chili (CL)
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp z.o.o. (PL)
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Hordeum vulgare L. · Barley
Saatzucht Donau, A
Helianthus annuus L. · Sunflower
Euralis Semences, F
Vicia faba L. · Broad bean
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Lolium perenne L. · Perennial ryegrass
Innoseeds B.V. (NL)
Rosa L. · Rose
Weeks Roses Inc (US)
Poa pratensis L. · Kentucky bluegrass
JACKLIN SEED
Lolium x hybridum Hausskn. · Hybrid ryegrass
Freudenberger, D
Festuca arundinacea Schreb. · Tall fescue
BARENBURG RESEARCH
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
GERMICOPA S.A.S
Lolium perenne L. · Perennial ryegrass
DLF Trifolium A-S, DK
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Poa pratensis L. · Kentucky bluegrass
DLF SEEDS A/S
Lolium perenne L. · Perennial ryegrass
Institute of Grasslands & Environmental Research