Studies On The Germ Cell Of Aphids
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Studies On The Germ Cell Of Aphids
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Author : Nettie Maria Stevens
language : en
Publisher:
Release Date : 1906
Studies On The Germ Cell Of Aphids written by Nettie Maria Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1906 with Alphididae categories.
Studies On The Germ Cells Of Aphids
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Author : Nettie Maria Stevens
language : en
Publisher:
Release Date : 1906
Studies On The Germ Cells Of Aphids written by Nettie Maria Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1906 with Aphididae categories.
Studies On The Germ Cell Of Aphids
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Author : Nettie Maria 1861-1912 Stevens
language : en
Publisher: Palala Press
Release Date : 2016-04-24
Studies On The Germ Cell Of Aphids written by Nettie Maria 1861-1912 Stevens and has been published by Palala Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-24 with categories.
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.
Studies On The Germ Cells Of Aphids
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Author : N. M. Stevens
language : en
Publisher: Wentworth Press
Release Date : 2019-03-04
Studies On The Germ Cells Of Aphids written by N. M. Stevens and has been published by Wentworth Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-04 with Science categories.
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.
Studies On The Germ Cells Of A
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Author : Nettie Maria 1861-1912 Stevens
language : en
Publisher: Wentworth Press
Release Date : 2016-08-29
Studies On The Germ Cells Of A written by Nettie Maria 1861-1912 Stevens and has been published by Wentworth Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-29 with History categories.
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.
Studies On The Germ Cells Of Aphids
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Author : N M Stevens
language : en
Publisher: Palala Press
Release Date : 2016-05-16
Studies On The Germ Cells Of Aphids written by N M Stevens and has been published by Palala Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-16 with categories.
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.
Studies On The Germ Cells Of Aphids
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Author : N M 1861-1912 Stevens
language : en
Publisher: Palala Press
Release Date : 2016-05-11
Studies On The Germ Cells Of Aphids written by N M 1861-1912 Stevens and has been published by Palala Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-11 with categories.
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.
Studies On The Germ Cells Of Aphids Classic Reprint
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Author : N. M. Stevens
language : en
Publisher:
Release Date : 2015-07-03
Studies On The Germ Cells Of Aphids Classic Reprint written by N. M. Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-03 with Science categories.
Excerpt from Studies on the Germ Cells of Aphids My previous report on the germ cells of aphids was based on a study of the parthenogenetic and winter eggs of Aphis rosae, the brown rose aphid, and of the spermatogenesis of Aphis oenotherae, found on the inflorescence of Oenothera biennis. During the past summer and autumn material from more than twenty species has been collected and examined. In some cases it has been possible to study all of the forms of one species, in other cases only the parthenogenetic eggs, only the winter eggs, or only the spermatogenesis. It has become evident in the course of the work that little dependence is to be placed on the present classification of aphids, and that a reclassification based on the cytology of the germ cells may be necessary. For example, it appears that at least three distinct species are usually included under the name Aphis rosae. No attempt will, therefore, be made in this paper to give the Latin names of the species studied, but they will be designated by the names of their host plants, and identified by brief description where it seems necessary. This comparative study was undertaken in the hope of throwing more light on the question of sex determination, and the descriptive part of the paper will be followed by a further discussion of the bearing of the facts recorded on that problem. Methods. The methods used were for the most part the same as in the previous work fixation with Gilson's "acetic alcohol with sublimate" (Lee, sixth edition, p. 65) and staining by Heidenhain's iron-haematoxylin method. Some material was fixed in Flemming's fluid, Hermann's platino aceto-osmic, and Gilson's mercuro-nitric, but such fixation brought out no new points in structure, and was, in general, less satisfactory than fixation with Gilson's acetic alcohol-sublimate formula. 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."
Biology And Ecology Of Aphids
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Author : Andreas Vilcinskas
language : en
Publisher: CRC Press
Release Date : 2016-02-22
Biology And Ecology Of Aphids written by Andreas Vilcinskas and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-02-22 with Nature categories.
Most people know of aphids as garden pests, infesting the soft green tissues of plants in vast numbers and killing them by sucking out the sap. Indeed, among the 4000 or so known species of aphids about 250 are pests, and in temperate regions several are economically important agricultural pests that damage crops directly during feeding or act as vectors for plant pathogens. But aphids are also important model organisms in evolutionary biology and ecology because they combine a number of unique features such as complex life cycles involving the development of morphological distinct phenotypes (polyphenism), sexual and asexual reproduction strategies and changes of host plants. Aphids can also be regarded as holobionts because they are colonized by obligate and facultative microbes which enable them to feed exclusively on phloem sap and influence their resistance against pathogens, parasitoids or environmental stress. This book combines fundamental information about aphids with chapters addressing state-of-the-art research in topics such as aphid-related phylogeny, genome biology, epigenetics and chemical ecology.
Studies On The Germ Cell Of Aphids
DOWNLOAD
Author : Nettie Maria Stevens
language : en
Publisher:
Release Date : 1906
Studies On The Germ Cell Of Aphids written by Nettie Maria Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1906 with Aphididae categories.