What are genetically superior black walnut trees?
These trees are the result of decades of research by a forest geneticist from a leading Midwestern university. Originally, scion wood, or bud wood, was collected from over 400 black walnut trees throughout the Midwest that had superior form. Through a selection process using form and growth rate as criteria, the geneticist determined the most superior trees. Over the years, through genetic selection of successive generations, trees with increased growth rate, vigor and vitality have been developed while maintaining superior form. The two most famous cultivars patented by the university are Purdue Number One and Tippecanoe Number One. 2. What are the main differences between the improved seedlings and the grafted trees? The grafted trees are genetically identical clones of the parent cultivars described above. The superior seedlings are grown from the nuts of these trees as well as the original Purdue Number One cultivars. As such, the seedlings will vary somewhat from their parent tree
