Ref ID: 10592
Ref Type: Note
Authors: O'Reilly-Wapstra, J. M., McArthur, C., and Potts, B. M.
Series Title: Pest Off
Pub Date: 12-9-2003
Number: 26
Edition:
Num Pages: 3
Editors:
Series Editor:
Publisher: CRC-SPF
Node: Hobart, Tasmania
Keywords: breeding/browsing/brushtail possum/deployment/genetic/leaf/Leaves/localities/natural/nitrogen/pest/plant/possum/program/resistance/species/tannin/tree/trees/variation/Eucalyptus/Eucalyptus globulus/globulus/damage/Eucalyptus nitens
Abstract: There is a genetic basis to browsing resistance of Eucalyptus globulus to brushtail possums. Trees sourced from Southern Tasmanian and Jeeralang localities are more resistant than those from St. Helens. The amount of sideroxylonal in leaves explained 38% of the variation in intake of plants by brushtail possums. Leaf sideroxylonal, tannin and nitrogen together explained 69% of the variation in intake. There is a genetic basis to leaf sideroxylonal levels in E. globulus. Trees sourced from Southern Tasmanian and Jeeralang localities had more sideroxylonal than those from St. Helens. These results suggest that we could use natural resistance (e.g. sideroxylonal) as a tool in deployment or breeding programs for reducing browsing damage. We could extend this approach into other economically important species such as Eucalyptus nitens.
Notes: Entered by Jill Butterworth (12/09/2003)
Address: joreilly@utas.edu.au
Reprint: In File
Program: SPF Resource Protection
Project: C3
Deliverable:
Confidentiality: Confidential to All Partners
Availability: Online
Report: Annual Report 2003/4