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.
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG, CH
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Dr. Christoph Kling in Universität Hohenheim - Landessaatzuchtanstalt -
Hordeum vulgare L. · Barley
Syngenta Crop Protection AG, CH
Triticum aestivum L. · Bread wheat
South Dakota Board of Regents
x Triticosecale Wittm. ex A. Camus · Triticale
Stephanie Franck^^^Peter Franck^^^Norbert Starck
x Triticosecale Wittm. ex A. Camus · Triticale
SAATZUCHT STRENG-ENGELEN GMBH&CO. KG
Lolium perenne L. · Perennial ryegrass
DLF Seeds A-S, DK
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
x Triticosecale Wittm. ex A. Camus · Triticale
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
x Triticosecale Wittm. ex A. Camus · Triticale
SAATZUCHT STRENG-ENGELEN GMBH&CO. KG
Triticum aestivum L. · Bread wheat
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
SENOVA LTD
x Triticosecale Wittm. ex A. Camus · Triticale
PZO Pflanzenzucht (DE)
Triticum aestivum L. · Bread wheat
Peter Franck
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Hordeum vulgare L. · Barley
Syngenta Participations AG
x Triticosecale Wittm. ex A. Camus · Triticale
Nordsaat Saatzucht GmbH Saatzucht Langenstein
Triticum aestivum L. · Bread wheat
Syngenta Participations AG
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
x Triticosecale Wittm. ex A. Camus · Triticale
Nordsaat Saatzucht GmbH, Böhnhausen DE
Triticum aestivum L. · Bread wheat
Sylvie DUTRIEZ
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Triticum durum Desf. · Durum wheat
RAGT 2n