Knots In Second Growth Pine And The Desirability Of Pruning

The pruning of young trees in sparsely and unevenly stocked stands will greatly improve the resulting lumber grades. In northern white and red pines, even in fully stocked stands, artificial pruning is essential for the production of any of the best grades of lumber in a reasonable time.

Excerpt from Knots in Second-Growth Pine and the Desirability of Pruning Many of our second-growth stands are understocked, and as a result natural pruning of the trees will not take place for a great many - years. With a constantly increasing proportion of second growth in our forests, the problem of improving the quality of timber and at the same time decreasing the rotation period is being given serious con sideration by the Forest Service in different parts of the country. 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.

Shedding of Plant Parts focuses on the anatomical, physiological, and ecological features of shedding of vegetative and reproductive parts of plants. This book encompasses both natural and induced shedding. Organized into 12 chapters, this book first outlines the extent of shedding of plant cells, tissues, and organs and summarizes the biological and economic implications of such shedding. Separate chapters follow that discuss anatomical and histochemical changes in leaf abscission; the physiological ecology and internal regulation of abscission; and the shedding of shoots, branches, bark, roots, pollen, seeds, and reproductive structures of forest trees. This book also explains the anatomical changes in abscission of reproductive structures, chemical thinning of flowers and fruits, and chemical control of fruit abscission. This book will be valuable to plant anatomists, pathologists, and physiologists, and to agronomists, arborists, biochemists, ecologists, entomologists, foresters, horticulturists, landscape architects, meteorologists, and soil scientists.