Images of sections of tissue taken from the upper side of leaning stems of Populus deltoides were projected on a paper grid system. Specimens were oriented so that the cambium and the last three annual increments were included in cross section. Counts of stimulated and non-stimulated cells in randomly selected grids were recorded. This procedure provides a means of subjecting the incidence of tension wood and other cytohistological phenomena to statistical analysis.
Proceedings of the Iowa Academy of Science
©1959 Iowa Academy of Science, Inc.
Berlyn, Graeme P.
"A Biometric Technique for Reaction Tissue Research,"
Proceedings of the Iowa Academy of Science, 66(1), 98-102.
Available at: https://scholarworks.uni.edu/pias/vol66/iss1/12