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Excerpt from An Outline of the History of Phytopathology The science of phytopathology, like all natural sciences, had its beginning in the dawn of man's civilization. All wild plants have diseases, and from the time that man began to domesticate by cultivation those of the wild species that suited his needs, he must necessarily have observed and considered the diseases that robbed him of part or all of the fruits of his labor. Not until he acquired the art of writing, however, could he record his observa tions and opinions with respect to the maladies which affected his crops. Even long thereafter, records of plant diseases were but fragments woven here and there into his historic or religious writings. Later, as he began to seek for order in the multitudinous facts of nature, his observations on plant diseases were segregated more or less along with the related facts and data into his writ ings on botany and agriculture. Only in relatively modern times have there been attempts to organize the facts and phenomena of disease in plants into a separate science of plant pathology. 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.
Hardcover reprint of the original 1918 edition - beautifully bound in brown cloth covers featuring titles stamped in gold, 8vo - 6x9. No adjustments have been made to the original text, giving readers the full antiquarian experience. For quality purposes, all text and images are printed as black and white. This item is printed on demand. Book Information: Whetzel, Herbert Hice. An Outline Of The History Of Phytopathology. Indiana: Repressed Publishing LLC, 2012. Original Publishing: Whetzel, Herbert Hice. An Outline Of The History Of Phytopathology, . Philadelphia; London: W. B. Saunders, 1918. Subject: Plant Diseases
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.
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.
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.
Excerpt from Phytopathology, Vol. 11: Official Organ of the American Phytopathological Society; January-December, 1921 Lee, H. Armrest, The increase in resistance to citrus canker with the advance in maturity of citrus trees, 70 73; see Mc, Fomum T.; see lyon, H. L. 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.
Excerpt from Phytopathology, Vol. 12: Official Organ of the American Phytopathological Society; January-December, 1922 The immature first year cones become infected at an early stage in their development, and within two or three months after they emerge many often exceed the size of the second year uninfected cones (pl. V, fig. A) home on the same tree. So far observations do not include infection of these two year old healthy cones. During the first of March many infected scales bearing pycnia may be observed accompanied by immature aecia within the cortical layers of the cone scale tissue im mediately beneath. With the maturity of the parasite, the infected cones have become abnormally enlarged and each individual swollen scale has a reddish color which is at first an orange chrome, becoming later a Sanford 's brown or chestnut.l With the rupturing of the aecial cavities and the sloughing o of the diseased cone scale tissue above, powdery masses of cadmium yellow spores are laid bare, (pl. V, fig. B, ) which entirely cover the cone. Excessive hypertrophy results, and the cones present a large swollen mass or gall, externally still showing the identity of each individual scale, but in longi-section, showing partial fusion of the scales. 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."
Excerpt from Phytopathology, Vol. 7: Official Organ of the American Phytopathological Society; January-December, 1917 This experiment forms the starting point for the development of the Jensen hot-water treatment. 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.