The influence of temperature, inoculum level and race of Fusarium oxysporum f.sp. cubense on the disease reaction of banana cv. Cavendish

Brake, V. M., Pegg, K. G., Irwin, J. A.G. and Chaseling, J. (1995) The influence of temperature, inoculum level and race of Fusarium oxysporum f.sp. cubense on the disease reaction of banana cv. Cavendish. Australian Journal of Agricultural Research, 46 3: 673-685. doi:10.1071/AR9950673


Author Brake, V. M.
Pegg, K. G.
Irwin, J. A.G.
Chaseling, J.
Title The influence of temperature, inoculum level and race of Fusarium oxysporum f.sp. cubense on the disease reaction of banana cv. Cavendish
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1071/AR9950673
Open Access Status Not yet assessed
Volume 46
Issue 3
Start page 673
End page 685
Total pages 13
Language eng
Subject 1100 Agricultural and Biological Sciences
Abstract Cavendish banana plants were grown in soil infested with different levels of microconidia of races 1 and 4 of Fusarium oxyspomm Schlect. f. sp. cubense (E.F. Smith) Snyd. & Hans. The 4-week-old plants were incubated at 20° and 28°C in temperature controlled cabinets subject to natural light fluctuations. Race 1, which does not normally infect Cavendish in the field, infected the plants at both temperatures, as did race 4. Results indicated that temperature was primarily affecting plant growth rather than influencing the aggressiveness of the pathogen. Inoculum levels were also found to influence disease severity with a minimum of 4.5 × l0 microconidia/g dry weight of soil required before macroscopic symptoms were observed. The suitability of month-old tissue culture derived plants for screening for resistance and the evolution of the Cavendish attacking race 4 strains are discussed in the light of these findings.
Keyword Bananas
Fusarium
Inoculum
Race 4
Temperature
Wilt
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
 
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