Variation In Cold Hardiness Among Populations Of Pseudotsuga Menziesii Var Glauca PDF Download

Excerpt from Variation in Cold Hardiness Among Populations of Pseudotsuga Menziesii Var. Glauca Cold acclimation was studied in 2-year-old seedlings from 51 populations of Douglas-fir (fig. Each population was represented by seeds from at least 10 trees. Most of these populations were from northern Idaho and eastern Washington, but populations from northeastern Oregon and north central Washington were also included. Populations were selected to fully represent the geographic distribution and ecological amplitude of the species in the region of study; longitude, latitude, elevation, and habitat type were variables used to characterize a seed source. 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.