Implications of Propagation Techniques on Landscape Performance
According to its Constitution, the I.P P.S. is made up of people "actively engaged in plant propagation". Many of us could be called plant producers as well as plant propagators But few, if any of us are landscape architects, landscape contractors, or urban foresters. We are concerned with propagating and producing plants, and not with using and maintaining them. Plant propagation, not plant performance, is our interest But the way we propagate a plant can have a long term effect on its ultimate performance in the landscape.
The fact that understock choice affects landscape performance in trees has long been known. Budding Acer rubrum cultivars onto A. rubrum seedling understock produces trees which exhibit a 30 to 40% frequency of delayed incompatibility. These incompatible trees snap off cleanly at the bud point, but often not until they reach 3- or 4- inch stem diameter. This problem has been almost eliminated from the nursery trade by propagating A. rubrum cultivars on their own roots
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