Dwarf Bunt of Wheat

Purdy, L H; Kendrick, E L; Hoffmann, and J A; Holton, C S

doi:10.1146/annurev.mi.17.100163.001215

Cited by 28 publications

(13 citation statements)

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“…Dwarf bunt, known locally as TCK smut (for Tilletia controversa Kiihn), reduces yields and is responsible for restricted export of PNW wheat to China (Purdy et al, 1963;Hoffman, 1982;Trione, 1982). Longer and more severe soil cooling is required for infection by X controversa than by T. tritici.…”

Section: Smut Diseasesmentioning

confidence: 99%

Diseases of wheat and barley in conservation cropping systems of the semiarid Pacific Northwest

Smiley

1996

am j alt ag

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Diseases continue to be important constraints in wheat and barley conservation cropping systems in the semiarid Pacific Northwest. Several diseases are more damaging in highthan low-residue seedbeds, and in crops planted during early autumn to reduce soil erosion during winter, especially unirrigated winter wheat in rotation with summer fallow in low rainfall zones (250–400 mm). Changes in cropping systems in the region have made disease management and maintenance of yield goals and farm profitability more challenging because disease management often is more complex and expensive with conservation tillage than inversion tillage. Practices being developed to meet this challenge are reviewed for diseases that are particularly trouble some in conservation farming systems of the Pacific Northwest.

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Section: Smut Diseasesmentioning

confidence: 99%

Diseases of wheat and barley in conservation cropping systems of the semiarid Pacific Northwest

Smiley

1996

am j alt ag

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“…He participated in a series of studies to determine whether teliospores on the seed of wheat could serve as inoculum able to infect wheat plants growing in areas where TCK spores did not occur in the soil. Earlier work on dwarf bunt had shown that teliospores that germinated near the soil surface were the primary source of infective propagules (37). Inasmuch as infection normally occurs after the wheat has emerged, it was felt that seedborne inoculum usually was not involved in infection.…”

Section: Politicsmentioning

confidence: 99%

“…It was last reviewed in 1963 by Purdy et al (37). Winter wheat (Triticum aestivum L.) is the primary host of economic significance, though the pathogen can attack other members of the grass family.…”

Section: Introductionmentioning

confidence: 99%

DWARF BUNT: Politics, Identification, and Biology

1996

Annu. Rev. Phytopathol.

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Dwarf bunt is a disease of wheat caused by the smut fungus Tilletia controversa Kuhn. Winter wheat (Triticum aestivum L.) is the primary host of economic significance. Although the total acreage affected by dwarf bunt is small relative to total wheat production worldwide, the disease has assumed attention disproportionate to its economic impact because it has become a matter of contention in world trade in cereals. This review describes the political and economic issues underlying the study and identification of T. controversa.

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“…The current distribution of wheat dwarf bunt, Tilletia controversa, in Eurasia (Gassner & Niemann, 1954;CMI, 1968) and in North America (Young, 1935;Conners, 1954;Baylis, 1958;Purdy et al, 1963;Wallen & Ednie, 1972) revealed that the geographical distribution of this disease was closely related to the climatic conditions of the different wheat cultivation areas of the world (Hardison et al, 1959;Purdy et al, 1963;CMI, 1968). Historically, the northwest Pacific region of North America is an area of high infestation both of Tilletia tritici and T. controversa (Purdy et al, 1963;Hoffmann, 1982;Trione, 1982). Quarantine inspections at ports of entry in China have recorded high interceptions of T. controversa in US wheat shipments exported from this area in recent years.…”

Section: Introductionmentioning

confidence: 99%

Plant quarantine significance of dwarf bunt of wheat to China

Zhang¹,

Zhang²,

Wang³

1995

EPPO Bulletin

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The adaptability of Tilletia controversa was studied in particular relation to China, where wheat is cultivated under various climatic conditions. Teliospore germination is closely influenced by temperature, light and soil humidity. Establishment of T. controversa depends on: (1) persistent low temperature (0–10°C) within the surface layer of the soil, in combination with adequate soil moisture; (2) presence of seedlings of susceptible wheat cultivars, especially in the early stage of tillering before or during overwintering. The climatic conditions of various wheat‐growing areas in China were compared with the results obtained in this study, and areas of prevalent damage and of marginal damage were predicted. It was concluded that T. controversa presents a considerable hazard to China if it accidentally enters.

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Dwarf Bunt of Wheat

Cited by 28 publications

References 0 publications

Diseases of wheat and barley in conservation cropping systems of the semiarid Pacific Northwest

Diseases of wheat and barley in conservation cropping systems of the semiarid Pacific Northwest

DWARF BUNT: Politics, Identification, and Biology

Plant quarantine significance of dwarf bunt of wheat to China

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