1. Department of Forest Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
2. British Columbia Ministry of Forests, Research Branch, Victoria, BC V8W 9C2, Canada.
3. British Columbia Ministry of Forests, Saanich Seed Orchard, Tree Improvement Branch, Saanichton, BC V8M 1W4, Canada.
4. British Columbia Ministry of Forests, Kalamalka Forestry Centre, Vernon, BC V1B 2C7, Canada.
5. Vernon Seed Orchard Company, Vernon, BC V1H 1G2, Canada.