Author: John Norman Kendall
Publisher:
ISBN:
Category : Plant cells and tissues
Languages : en
Pages : 106

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Author: John Norman Kendall
Publisher:
ISBN:
Category : Abscission (Botany)
Languages : en
Pages : 224

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Author: John Norman Kendall
Publisher: Forgotten Books
ISBN: 9780656218110
Category : Science
Languages : en
Pages : 106

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Excerpt from Abscission of Flowers and Fruits in the Solanaceae, With Special Reference to Nicotiana: A Thesis Submitted in Partial Satisfaction of the Requirements for the Degree of Doctor of Philosophy at the University of California Although it is a matter of common observation that many plants are capable of detaching portions of the body, the underlying cause and the actual mechanism which bring about such separation are only slightly understood. The process has often been described as' One Of self-pruning by which the plant rids itself of useless portions of its body. Since abscission is sometimes confused with exfoliation, it seems desirable here to distinguish definitely between these two phenomena. It can be said that, in general, exfoliation is preceded by drying and death of the part to be cast off and that actual separa tion of the organ is accomplished by a mechanical break through dry, dead tissues. Abscission, on the other hand, is usually not preceded by drying and death of the organ concerned and its detachment is accomplished by a separation along the plane of the middle lamellae of active living cells. Abscission may be either axial or lateral. Axial abscission includes the abscission of portions of stems, shoots, entire flowers or fruits. Lateral abscission includes the abscission of leaves, petioles, sepals, petals or styles. Considerable attention has been given by investi gators to the abscission of flowers because of the theoretical detriment to crops caused by the fall of the flower before the fruit is formed. 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 Norman Kendall
Publisher:
ISBN:
Category : Abscission (Botany)
Languages : en
Pages : 328

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Author: William Albert Setchell
Publisher:
ISBN:
Category : Nicotiana
Languages : en
Pages : 802

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Author: John Norman Kendall
Publisher: Sagwan Press
ISBN: 9781340232788
Category :
Languages : en
Pages : 108

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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:
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ISBN:
Category :
Languages : en
Pages : 106

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Author: University of California, Berkeley
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 770

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Author: University of California, Riverside. Citrus Experiment Station
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 898

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Author: University of California, Berkeley
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 18

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