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.
Festuca arundinacea Schreb. · Tall fescue
Lebanon Seaboard Corporation and Rutgers, The State University of New Jersey
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Festuca arundinacea Schreb. · Tall fescue
Radix Research
Rosa L. · Rose
Poulsen Roser A/S
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
Rosa L. · Rose
The Limes New Roses
Solanum tuberosum L. · Potato
SELECTIEBEDRIJF KOOI
Phaseolus vulgaris L. · Common bean
Robert Gehin
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Lolium perenne L. · Perennial ryegrass
JACKLIN SEED
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Triticum durum Desf. · Durum wheat
Florimond Desprez Veuve et Fils, FR
Helianthus annuus L. · Sunflower
MAY AGRO SEED COPR.
Asparagus officinalis L. · Asparagus
Bejo Zaden B.V.
Poa pratensis L. · Kentucky bluegrass
JACKLIN SEED
Phaseolus vulgaris L. · Common bean
Pop Vriend, NL
Festuca rubra L. · Red fescue
Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dipl.Ing. agr. Cord Schumann
Trifolium resupinatum L. · Persian clover
Department of Agriculture South Australia
Phaseolus vulgaris L. · Common bean
Syngenta Seeds
Lolium perenne L. · Perennial ryegrass
Rutgers, The State University of New Jersey
Triticum aestivum L. · Bread wheat
Apsovsementi, I
Lolium multiflorum Lam. · Italian ryegrass
DLF SEEDS A/S