selection-principle

Updated: May 11, 2025

On this point however, no evidence is at hand. Since the work of Vilmorin the selection-principle has increased enormously in importance, for practical purposes as well as for the theoretical aspect of the subject. It is now being applied on a large scale to nearly all ornamental plants. It is the one great principle now in universal practice as well as one of preeminent scientific value.

Hugo de Vries - Species and Varieties, Their Origin by Mutation