Chromatographic Analysis of an Open-pollinated Rosendahl Spruce Progeny

Chromatographic evaluation of foliage extracts from 25 white spruce, 25 black spruce, Rosendahl spruce, and 61 open-pollinated progeny of Rosendahl spruce provided additional evidence of the hybrid origin of Rosendahl spruce. Individual trees were scored on the basis of the presence or absence of spots indicating flavanoid compounds. The score for the Rosendahl spruce and the mean score of its 61 progeny were intermediate to the mean scores for white and black spruce. Chromatographic scores for the progeny group were more variable than those obtained from either the white or black spruce samples.