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Survival of conidia of sorghum ergot (caused by Claviceps africana) on panicles, seed and soil in Australia

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Bhuiyon, S.A., Ryley, M.J., Galea, V.J., Tay, D. and Lisie, A.T. (2002) Survival of conidia of sorghum ergot (caused by Claviceps africana) on panicles, seed and soil in Australia. Australasian Plant Pathology, 31 . pp. 137-141. ISSN 1448-6032

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Article Link: https://doi.org/10.1071/AP01077

Abstract

Macroconidia of the sorghum ergot pathogen, Claviceps africana Frederickson, Mantle & de Milliano, survived in dried honeydew on soil for 13–14 weeks in a glasshouse at ambient temperatures, but for less than half that time on seed stored in a shadehouse over summer. Those on seeds stored at 4°C, however, survived for over a year (58–62 weeks). During summer, conidia on ergot-infected panicles buried in soil, or on the soil surface, survived for 7.5–12 weeks, whereas over winter the survival times were 4 weeks and 19–27 weeks, respectively. Macroconidia on infected panicles held above the soil surface survived for >38 weeks (8 calendar months) over winter, suggesting that they may play a role in the perennation of C. africana in Australia.

Item Type:Article
Subjects:Plant pests and diseases > Individual or types of plants or trees > Sorghum
Live Archive:12 Jan 2024 02:21
Last Modified:12 Jan 2024 02:21

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