1. NSW Department of Primary Industries, Tamworth Agricultural Institute, Tamworth NSW 2340, Australia.
2. University of Sydney, Plant Breeding Institute Cobbitty, Camden, NSW 2570, Australia.
3. Value Added Wheat Cooperative Research Centre Ltd, P.O. Box 7, North Ryde, NSW 1670, Australia.
4. Corresponding author. Phone: 612 67631119. Fax: 612 67631222. Email: mike.sissons@dpi.nsw.gov.au