Book excerpt: Excerpt from Genetic Variation in a Provenance Test of 16-Year-Old Ponderosa Pine Hence, the Washington Creek plantation contained two replicates. The Crane Creek Plantation was not replicated except for one provenance. After the trees were 16 years old, the following data were obtained for trees undamaged by snow, porcupines, insects, and cattle: 16 and 11-year heights, diameter at the ground, and number of branches in the upper two whorls. At Crane Creek, a systematic sample of 67 to 75 trees for each provenance was taken so that observations were available from entire plots. Because of high mortality and snow damage at the Washington Creek site, only 12 to 73 trees were measured for each provenance. Percentages of mortality and trees damaged by snow were estimated for each plot at Washington Creek. Snow damage included major bends in the stem, grotesquely deformed stems and branches, and broken tops. There was virtually no snow damage at Crane Creek, and mortality was minimal. 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.