Alathea
ActiveLolium perenne L. · Perennial ryegrass
DLF Seeds A/S
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
Lolium multiflorum Lam. · Italian ryegrass
RAGT 2N S.A.S
Poa pratensis L. · Kentucky bluegrass
Funk, Jr., Cyril Reed|East Brunswick, NJ / Pepin, Gerard William
Triticum aestivum L. · Bread wheat
FARMPURE GLOBAL
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Lolium perenne L. · Perennial ryegrass
ABERYSTWYTH UNIVERSITY
Triticum aestivum L. · Bread wheat
Elsoms Seeds
Rosa L. · Rose
Rumen Conev, Canada/Parminderjit Sandhu, Canada
Triticum aestivum L. · Bread wheat
Michael Winzeler
Helianthus salicifolius A. Dietr. · Willow-leaf Sunflower
Keith R.W. Hammett
Hordeum vulgare L. · Barley
Syngenta Participations AG
Heuchera L. · Coral Flower
Gossett Gary J.|Portland, OR, US
Rosa L. · Rose
William J. Radler
Rosa L. · Rose
Poulsen Roser A/S
Anigozanthos Labill. · Kangaroo Paw
Ramm Botanicals Holdings Pty Ltd
Zea mays L. · Maize
CROOKHAM COMPANY
Rubus idaeus L. · Red raspberry
Thompson Ellen
Rubus idaeus L. · Red raspberry
Thompson Ellen
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Miscanthus sinensis Andersson · Chinese silver grass
Thomas G. Ranney^^^Darren H. Touchell
Rubus idaeus L. · Red raspberry
Thompson Ellen
Malus domestica (Suckow) Borkh. · Apple
Luby, James / University of Minnesota