Author: George A. Schier

Publisher: Forgotten Books

Published: 2018-03-17

Total Pages: 26

ISBN-13: 9780364806760

Excerpt from Variation Among Healthy and Deteriorating Aspen Clones Previously, Schier (1975) described the general pattern of deterioration in western aspen (populus tremuloides Poorly stocked deteriorating clones were found growing adjacent to well-stocked mature healthy clones. The occurrence of deteriorating and healthy clones on similar sites indicated that the age at which aspen ramets begin to die is genetically controlled. It was noted that deteriorating clones were visually distinguishable from healthy ones. Their stems tended to be shorter and branchier, and to have poorer form than the stems of healthy clones. Thus it appeared that the longevity of aspen ramets was correlated with various morphological characteristics. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.