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Field Experiments With Crown Gall, 1913-1917 presents the scientific findings of Helge Ness during his years of research. This historical record offers insights into early 20th-century agricultural science and plant pathology, focusing specifically on crown gall, a plant disease caused by the bacterium Agrobacterium tumefaciens. Ness’s meticulous experiments aimed to understand the nature and behavior of crown gall tumors on plants.Researchers and historians of science will find value in the detailed documentation of Ness’s experimental methods and observations. This work provides a foundational understanding of plant diseases and their impact on agriculture. 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.
