Ten-Year Performance of Ponderosa Pine Provenances in the Great Plains of North America (Classic Reprint)

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Excerpt from Ten-Year Performance of Ponderosa Pine Provenances in the Great Plains of North AmericaThe variety arizonica [engelm.) Shaw - Pinus orizon ica according to some authorities - extends from south west New Mexico and southeastern Arizona southward along the Sierra Madre Occidental to near Durango, and along the Sierra Madre Oriental to near San Luis Potosi, Mexico.Although older studies of ponderosa pine - near Pikes Peak in Colorado and Priest River, Idaho (1911) - are considered to be the earliest examples of provenance tests of forest trees in North America (wang subsequent genetic research in ponderosa pine has concentrated mainly on the West Coast variety ponderosa.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.