1. School of Agriculture, Food and Wine The Univ. of Adelaide; Glen Osmond SA 5064 Australia
2. School of Environ. and Rural Science Univ. of New England; Armidale NSW 2351 Australia
3. Science Delivery Queensland Dep. of Science; Information Technology, Innovation and the Arts; Dutton Park QLD 4001 Australia
4. Queensland Alliance for Agriculture and Food Innovation Univ. of Queensland; PO Box 23 Kingaroy 4610 Australia