Stem rust (barley)


Stem rust (barley)

Stem rust is a fungal disease of barley caused by "Puccinia graminis" f.sp. "tritici" and "Puccinia graminis" f.sp. "secalis".cite book
last = Mathre
first = D.E.
title = Compendium of barley diseases
publisher = American Phytopathological Society
date = 1997
pages = 120 pp
] cite book
last = Martens
first = J.W.
coauthors = W.L. Seaman, T.G. Atkinson
title = Diseases of field crops in Canada
publisher = Canadian Phytopathological Society
date = 1984
pages = 160 pp
]

Symptoms

Leaf rust is characterized by large pustules that are oval to elongated and are often surrounded by a characteristic torn margin. The red rust or summer spore stage (uredinia) is evident on stems, leaf sheaths, glumes, awns, and leaves as elongate pustules containing reddish brown spore masses which fall away easily. The black rust or autumn spore stage (telia) looks like the red stage except for the black color, but do not dislodge.

Disease cycle

Stem rust survives the summer mainly on volunteer wheat, barley, triticale and some grasses including common wheat grass and barley grass. Barberry species ("Berberis vulgaris". "B. canadensis", "B. fendleri") serve as an alternate host for "Puccinia graminis".

Spores are spread by wind to susceptible hosts. High humidity and heavy dew favour development of the disease which develops rapidly at temperatures near 20°C. Disease development s markedly reduced by temperatures below 15°C and above 40°C.

External links

Extension publications

* [http://plant-disease.ippc.orst.edu/disease.cfm?RecordID=115 US: Oregon]
* [http://www.dpi.vic.gov.au/dpi/nreninf.nsf/childdocs/-22C871BE2A0105794A2568B30004D413-3C5B474B480825C8CA256BC700824574-78F1BBD6496F89034A256DEA00274EEC-FC12E4D8B8736B23CA256CF7000B0281?open Australia]

Research articles

cite journal
last = Dill-Macky
first = R.
coauthors = A. P. Roelfs
title = The effect of stand density on the development of Puccinia graminis f. sp. tritici in barley
journal = Plant Dis.
volume = 84
pages = 29–34
date = 2000
url = http://www.apsnet.org/pd/pdfs/1999/1022-02R.pdf
doi = 10.1094/PDIS.2000.84.1.29

cite journal
last = Dill-Macky
first = R.
coauthors = A.P. Roelfs
title = The effect of race QCCJ of Puccinia graminis f. sp. tritici on yield and quality in barley
journal = Plant Dis.
volume = 82
pages = 674–678
date = 2006
url = http://www.apsnet.org/phyto/search/2006/phyto-96-0941.asp
doi = 10.1094/PDIS.1998.82.6.674

cite journal
last = Kilian
first = A.
coauthors = B. J. Steffenson, M. A. Saghai Maroof
title = RFLP Markers Linked to the Durable Stem Rust Resistance Gene Rpg1 in Barley
journal = MPMI
volume = 7
pages = 298–301
date = 1994
url = http://www.apsnet.org/mpmi/pdfs/1994/Microbe07-298.pdf

cite journal
last = Liu
first = J.Q.
coauthors = D.E. Harder, J.A. Kolmer
title = Competitive ability of races of Puccinia graminis f. sp. tritici on three barley cultivars and a susceptible wheat cultivar
journal = Phytopathology
volume = 86
pages = 627–632
date = 1996
url = http://www.apsnet.org/phyto/PDFS/1996/Phyto86n06_627.PDF
doi = 10.1094/Phyto-86-627

cite journal
last = Martens
first = J.W.
coauthors = G.J. Green, K.W. Buchannon
title = Inheritance of resistance to Puccinia graminis f. sp. avenae in a Hordeum vulgare selection
journal = CJPP
volume = 5
pages = 266–268
date = 1983
url = http://www.cps-scp.ca/download/cjpp-archive/Vol5/CJPP5(4)266-268(1983).pdf

cite journal
last = Steffenson
first = B.J.
coauthors = R.D. Wilcoxson
title = Receptivity of barley to Puccinia graminis f. sp. tritici
journal = CJPP
volume = 9
pages = 36–40
date = 1987
url = http://www.cps-scp.ca/download/cjpp-archive/Vol9/CJPP9(1)36-40(1987).pdf

cite journal
last = Sun
first = Yongliang
coauthors = Brian J. Steffenson, Yue Jin
title = Genetics of resistance to Puccinia graminis f. sp. secalis in barley line Q21861
journal = Phytopathology
volume = 86
pages = 1299–1302
date = 1996
url = http://www.apsnet.org/phyto/PDFS/1996/Phyto86n12_1299.PDF
doi = 10.1094/Phyto-86-1299

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Stem rust — Puccinia graminis Scientific classification Kingdom: Fungi Phylum …   Wikipedia

  • stem rust — noun 1. : a rust attacking the stem of a plant; especially : a destructive disease of wheat and various other grasses that is caused by a rust fungus (Puccinia graminis), is characterized by reddish brown lesions in the uredostage of the parasite …   Useful english dictionary

  • List of barley diseases — This article is a list of diseases of barley (Hordeum vulgare). Contents 1 Bacterial diseases 2 Nematodes, parasitic 3 Virus, viroid and virus like diseases 4 …   Wikipedia

  • Norman Borlaug — Dr. Norman Borlaug Borlaug speaking at the Ministerial Methodist Conference and Expo on Agricultural Science and Technology in June 2003 Born …   Wikipedia

  • Agriculture — General …   Wikipedia

  • Wheat — This article is about the plant. For other uses, see Wheat (disambiguation). Wheat Scientific classification Kingdom: Plantae (unranke …   Wikipedia

  • Wheat diseases — In EuropeCereals are at risk from numerous diseases due to the level of intensification necessary for profitable production since the 1970s. More recently varietal diversification, good plant breeding and the availability of effective fungicides… …   Wikipedia

  • Oat — This article is about the common cereal. For other uses, see Oat (disambiguation). Oats redirects here. It may mean either the common cereal oat discussed here, or any cultivated or wild species of the genus Avena. Oat Oat plants with in …   Wikipedia

  • Charles E. Saunders — For other people named Charles Saunders, see Charles Saunders (disambiguation). Sir Charles Edward Saunders Born February 2, 1867(1867 02 02) London, Canada West Died …   Wikipedia

  • Emmer — Taxobox name = Emmer wheat image width = 240px image caption = Spikes (ears) of cultivated emmer wheat regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Poales familia = Poaceae genus = Triticum species = T. dicoccon binomial …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.