Biosystematics of the genus Populus. III. Naturally occurring Manitoba hybrids of introduced P. × petrowskyana with native P. deltoides var. occidentalis and P. balsamifera

Publisher Website
Google Scholar
Abstract
Collections of hybrid poplars made in the Roseisle area of Manitoba appear to have resulted from hybridization of introduced P. × petrowskyana Schneid. with native P. deltoides Marsh. var. occidentalis Rydb. and P. balsamifera L. This interpretation was supported by morphology of an open-pollinated seedling population of P. × petrowskyana and by chromatographic analyses. Gas chromatographic results were effective in distinguishing the three parent species; however, the hybrid nature of P. × petrowskyana made chromatographic documentation of hybridization very difficult. High fertility, indicated by abundant production of sound seed, was noted for several mature P. × petrowskyana × P. deltoides var. occidentalis female trees. No barriers were found that would prevent a three species complex of all three hybridizing species.

This publication has 0 references indexed in Scilit: