Vol. 43

Title:
New Large-Bracted Dogwoods from Rutgers University

Author:
Elwin R. Orton Jr

pp: 487-490

Abstract:
INTRODUCTION

During the first 5 years of the woody ornamentals breeding program at Rutgers University, hybridization studies were limited to intra- and inter-specific hybridization of plants of the genus Ilex, and of the genus Pyracantha. Starting in 1965, plants of the various cultivars and numbered selections of Cornus florida, C. kousa, and C. nuttallii available in the trade were assembled in a performance trial as the starting point for interspecific hybridization between these three species of large-bracted dogwood. Such a field trial of tree species is essential to a long-range hybridization program: first, the trial allows one to observe the degree of genetic variability available within the various species and thus obtain a measure of the potential improvement one can expect to achieve via a program of controlled crosses; secondly, the performance trial provides the parent material used in making the crosses; and thirdly, the trial provides the current standards of excellence for

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