It isn't a fast process. So the children of any one cross may not display the resistance of their parent plants. Backcrossing with one or both of the parents might be required. There is no way to know for sure. And we're talking anywhere from three to six years between generations, because from the time you take that little seedling and get a plant big enough to have blooms, it takes several years.
Tree breeding takes a lot longer than breeding corn or soybeans.
The Experiment Station is very supportive of that. In the meantime, the Experiment Station will release other worthwhile trees that will serve as a good bridge until a beautiful, healthy tree can be developed that is also resistant to both diseases. Later this year, the project will get a substantial financial boost from a number of privately owned Tennessee nurseries through the work of Trigiano and Windham. Their support has just overwhelmed us.