Common root rot is a disease of
wheat
Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...
caused by one or more fungi. ''
Cochliobolus sativus
The fungus ''Cochliobolus sativus'' is the teleomorph (sexual stage) of ''Bipolaris sorokiniana'' (anamorph) which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on roots (where it is known as ...
'', ''
Fusarium culmorum
''Fusarium culmorum'' is a fungal plant pathogen and the causal agent of seedling blight, foot rot, ear blight, stalk rot, common root rot and other diseases of cereals, grasses, and a wide variety of monocots and dicots. In coastal dunegrass ( ...
'' and ''
F. graminearum'' are the most common pathogens responsible for common root rot.
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Symptoms
Small, oval, brown lesions on the roots, lower leaf sheath and subcrown internode. As the disease progresses, lesions may elongate, coalesce and girdle the subcrown internode and may turn from brown to nearly black.
Crop losses
Losses in potential yield from common root rot of wheat were estimated at 5.7% annually over the 3-year period 1969–71 in the Canadian prairie provinces and at 7% annually over the 10-year period 1968–78 ub Saskatchewan, Canada.
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References
Wheat diseases
Fungal plant pathogens and diseases
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