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


Autoria(s): Bhuiyan, S.A.; Ryley, M.J.; Galea, V.J.; Tay, D.; Lisle, A.T.
Contribuinte(s)

E. J. Cother

Data(s)

01/01/2002

Resumo

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 4degreesC, 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.

Identificador

http://espace.library.uq.edu.au/view/UQ:63295

Idioma(s)

eng

Publicador

CSIRO Publishing

Palavras-Chave #Plant Sciences #Disease #Pathogen #America #C1 #060704 Plant Pathology
Tipo

Journal Article