Kolmamoc
ActiveHypericum x inodorum Mill. · Tall tutsan
Floribreed V.O.F.
Diseases
Rust
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.
Breakdown by crop
Rust of common wheat
1 722
Barley rust
466
Rust on perennial ryegrass
377
Sunflower rust
362
Triticale rust
294
Rust of Durum Wheat
268
Oat crown rust
182
Rust of sweet corn
157
Rust of rye
116
Bean rust
114
Rose Rust
114
Rust of Kentucky Bluegrass
110
Rust of Italian ryegrass
109
Apple Rust
106
Rust of tall fescue
104
Maize rust
77
Pear Rust
70
Rust of Italian Ryegrass
70
White Rust of Chrysanthemum
59
Rust of sugar beet
59
Rust on Black Currant
52
Leek Rust
52
Rust of Faba Bean
39
Rust of Faba Bean
38
Found in these crops
Varieties that feature this in their description
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.
KWS Creswell
ActiveHordeum vulgare L. · Barley
KWS UK LTD
Hot Rod
ActivePanicum virgatum L. · Switchgrass
Paul David Babikow
Kolmrock
TerminatedHypericum x inodorum Mill. · Tall tutsan
JAN DE JON
Kolmgreviva
ActiveHypericum x inodorum Mill. · Tall tutsan
Floribreed V.O.F.
Kolmdream
TerminatedHypericum L. · St. John's wort
Wilhelmina J. B. de Jong-Tazelaar
Hoogvorst
ActivePopulus L. · Poplar
Eigen Vermogen van het Instituut voor Natuur- en Bosonderzoek (EV-INBO)
Kempt
TerminatedTriticum aestivum L. · Bread wheat
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Kolmsweet
TerminatedHypericum L. · St. John's wort
Wilhelmina J. B. de Jong-Tazelaar
Kolmarest
ActiveHypericum x inodorum Mill. · Tall tutsan
Floribreed V.O.F.
Kolmfir
TerminatedHypericum L. · St. John's wort
Wilhelmina J. B. de Jong-Tazelaar
Kolmagimpre
ActiveHypericum x inodorum Mill. · Tall tutsan
Floribreed V.O.F.
Harnext
ActiveRosa L. · Rose
HARKNESS NEW ROSES LTD
Harfrisky
ActiveRosa L. · Rose
HARKNESS NEW ROSES LTD
Kalbarri
Application submittedChamelaucium uncinatum Schauer · Geraldton wax
Botanic Gardens and Parks Authority
Kiesapphire
ActiveAster dumosus L. · Bushy aster
Andreas Niederländer
Giant Amadeus
ActiveHippeastrum Herb. · Amaryllis
Ben van Geest
Grimminge
ActivePopulus L. · Poplar
Eigen Vermogen van het Instituut voor Natuur- en Bosonderzoek (EV-INBO)
Greshen
ActivePhaseolus coccineus L. · Runner bean
Holland-Select Research B.V.
Galamic
ActiveMalus domestica (Suckow) Borkh. · Apple
Jürgen Braun
JOSTAR
ActiveLavatera L. · Tree mallow
Hyfryd Plants
Hardi
ActiveZea mays L. · Maize
CROOKHAM COMPANY
Griffin
TerminatedAvena sativa L. · Oat
ABERYSTWYTH UNIVERSITY
Galatino
ActiveChrysanthemum L. · Chrysanthemum
Pieters Plant Production B.V.B.A.