Photos
Resistance Testing
| Title: | Resistance Testing |
|---|---|
| Description: | Resistance testing of western white pine (Pinus monticola) at Dorena Genetic Resource Center. Two-year old seedlings were inoculated with Cronartium ribicola spores in fall 2002 - photo shows mortality two years after inoculation. Trees are followed for five years after inoculation to evaluate genetic resistance to white pine blister rust. |
| Photographer: | Sally Long |
