Effects of conidial concentration and stigma wetness period on infection by the sorghum ergot pathogen Claviceps africana

Bhuiyan, S. A., Ryley, M. J., Galea, V. J., Tay, D. and Lisle, A. T. (2009) Effects of conidial concentration and stigma wetness period on infection by the sorghum ergot pathogen Claviceps africana. Australasian Plant Pathology, 38 5: 496-499. doi:10.1071/AP09032


Author Bhuiyan, S. A.
Ryley, M. J.
Galea, V. J.
Tay, D.
Lisle, A. T.
Title Effects of conidial concentration and stigma wetness period on infection by the sorghum ergot pathogen Claviceps africana
Journal name Australasian Plant Pathology   Check publisher's open access policy
ISSN 0815-3191
Publication date 2009
Year available 2009
Sub-type Article (original research)
DOI 10.1071/AP09032
Volume 38
Issue 5
Start page 496
End page 499
Total pages 4
Editor Philip O'Brien
Keith Harrower
Place of publication Australia
Publisher CSIRO Publishing
Collection year 2010
Language eng
Subject C1
820404 Sorghum
070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Abstract The effect of conidial concentration and length of stigma wetness period on infection of sorghum spikelets by Claviceps africana was studied in a controlled environment experiment. A spore concentration of at least 106 conidia/mL was required for maximum infection on sorghum panicles. Maximum infection occurred during a stigma wetness period between 4.5 and 6 h. Approximately 11–15% infection occurred when stigmas had been dried immediately after inoculation. This study demonstrated that the stigma wetness is an important parameter in sorghum ergot epidemiology.
Keyword SPHACELIA-SORGHI
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 03 Sep 2009, 07:43:03 EST by Mr Andrew Martlew on behalf of School of Land, Crop and Food Sciences