PRELIMINARY REPORT ON INTERSPECIFIC HYBRIDIZATION IN FOREST TREES

Abstract
Interspecific hybridization in various forest tree genera gave the following results: Populus, 43 crosses; Picea, 12; Pinus, 4; Betula, 14; Fraxinus, 5; Ulmus, 7; and Tilia, 9. The hybridity of most of these materials has been proved or strongly indicated by various criteria; but for some of the materials, hybridity is assumed on the basis of seedling production under conditions that largely precluded the possibility of self- or chance-pollination.

This publication has 2 references indexed in Scilit: