[PDF] The Ecological Relations Of Roots eBook

Author : John E. Weaver
Publisher :
Page : 212 pages
File Size : 45,70 MB
Release : 2016-06-28
Category : Science
ISBN : 9781332819003

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Excerpt from The Ecological Relations of Roots During the course Of these investigations the writer has become greatly indebted to the following persons for faithful assistance in the pursuance Of this work. It is a pleasure to acknowledge here the indebtedness to my students, Messrs. F. C. Jean and Alvin Goke, for much help in the excavation Of the plants, and to Miss Annie Mogen sen and Mrs. F. C. Jean for their assistance in drawing many Of the root systems. I wish also to acknowledge the helpful suggestions and encouragement given by Dr. F. E. Clements and Dr. R. J. Pool throughout the period Of the work. To Professor T. J. Fitzpatrick I am also indebted for careful reading Of the manuscript and proof. 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.

Author : John E. Weaver
Publisher : Legare Street Press
Page : 0 pages
File Size : 39,54 MB
Release : 2022-10-26
Category : Education
ISBN : 9781015458192

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author : John E. Weaver
Publisher :
Page : 210 pages
File Size : 23,64 MB
Release : 2015-02-20
Category :
ISBN : 9781297429279

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author : Hans de Kroon
Publisher : Springer Science & Business Media
Page : 424 pages
File Size : 19,40 MB
Release : 2003-05-21
Category : Science
ISBN : 9783540001850

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In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. This development has made them a fascinating object of scientific study. This volume gives an overview of how roots have adapted to the soil environment and which roles they play in the soil ecosystem. The text describes the form and function of roots, their temporal and spatial distribution, and their turnover rate in various ecosystems. Subsequently, a physiological background is provided for basic functions, such as carbon acquisition, water and solute movement, and for their responses to three major abiotic stresses, i.e. hard soil structure, drought and flooding. The volume concludes with the interactions of roots with other organisms of the complex soil ecosystem, including symbiosis, competition, and the function of roots as a food source.

Author : W. Böhm
Publisher : Springer Science & Business Media
Page : 202 pages
File Size : 27,38 MB
Release : 2012-12-06
Category : Science
ISBN : 3642672825

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Root research under natural field conditions is still a step-child of science. The reason for this is primarily methodological. The known methods are tedious, time consuming, and the accuracy of their results is often not very great. Many research workers have been discouraged by doing such root studies. The need for more information on the development and distribution of plant roots in different soils under various ecological conditions is, however, obvious in many ecological disciplines. Especially the applied botanical sciences such as agriculture, horticulture, and forestry are interested in obtaining more data on plant roots in the soil. This book will give a survey of existing methods in ecological root research. Primarily field methods are presented; techniques for pot experiments are described only so far as they are important for solving ecological problems. Laboratory methods for studying root physiology are not covered in this book. Scientific publications on roots are scattered in many different journals published all over the world. By working through the international root literature I found that about ten thousand papers on root ecology have been published at the present. This is not very much compared with the immense literature on the aboveground parts of the plants, but is, however, too much to cite in this book.