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Simple techniques for production of secondary conidia and ergot inoculation in sorghum

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Title Simple techniques for production of secondary conidia and ergot inoculation in sorghum
 
Creator Tonapi, V A
Ryley, M J
Galea, V
Bhuiyan, S
Wearing, A
 
Subject Sorghum
 
Description Ergot (sugary disease), caused by several species of
Claviceps including C. africana, is a serious panicle
disease in most of the sorghum (Sorghum hicolor)
producing countries of the wor ld (Bandyopadhyay et al .
1998). Ai rborne secondary conidia are the pr imary
source of inoculum of C. africana (Bandyopadhyay et al .
1998) and are responsible for the rapid spread of the
pathogen (Frederickson et al. 1989,1991,1993). Secondary
conidia are produced on sterigmata f rom germinated
macroconidia f rom the honeydew. To date, al l infect ion
studies have been conducted wi t h mixed suspensions of
macroconidia and secondary conidia, sprayed onto
stigmas. However , in nature this does not occur, as the secondary conidia are not deposi ted in a suspension on
the st igmas, except when car r ied there by raindrops
(Tonapi et al . 2002). In this article, we describe techniques to produce and harvest secondary conidia. and to
inoculate st igmas; these techniques mimi c natural
infect ion.
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/1450/1/ISMN44_97-99_2003.pdf
Tonapi, V A and Ryley, M J and Galea, V and Bhuiyan, S and Wearing, A (2003) Simple techniques for production of secondary conidia and ergot inoculation in sorghum. International Sorghum and Millets Newsletter, 44. pp. 97-99.