Phenology and Other Features of the Flowering of Pines, with Special Reference to Pinus Monticola Dougl PDF Download
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Author: Richard T. Bingham
Publisher:
ISBN:
Category : Phenology
Languages : en
Pages : 36
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Book Description
Author: Richard T. Bingham
Publisher:
ISBN:
Category : Phenology
Languages : en
Pages : 36
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Book Description
Author: Richard T. Bingham
Publisher: Forgotten Books
ISBN: 9780366961597
Category : Science
Languages : en
Pages : 40
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Book Description
Excerpt from Phenology and Other Features of the Flowering of Pines, With Special Reference to Pinus Monticola Dougl The authors soon realized the hopelessness of completely reviewing even that part of the phenological literature concerned only with forest trees. Early observers lacked uniform criteria for describing annual phenomena and varied in their skill in describing and recognizing floral stages. These factors as well as the bulk and inaccessibility of the older literature caused the writers to restrict their survey mainly to more recent publica tions on floral phenology of conifers. 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:
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Category :
Languages : en
Pages :
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Author: R. T. Bingham
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Author: R. T. Bingham
Publisher:
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Category : White pine
Languages : en
Pages : 28
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Author: Keith William Dorman
Publisher: Forgotten Books
ISBN: 9780260620996
Category : Science
Languages : en
Pages : 22
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Book Description
Excerpt from Time of Flowering and Seed Ripening in Southern Pines Interest of botanists in phenology, which can be defined as the science of the relations between climate and periodic biological phenomena, has been active for years. In 1915, Lamb (g) published in chart form for a great many species the time of leafing, full foliage, flowering, seed ripening, seed falling, and leaf falling. In 1953, Duffield (5) revised an earlier publication, giving pine pollen collection dates with data on annual and geographic variation based on observation at the Institute of Forest Genetics in California. He states that Pinus ponderosa on the west slope of the Sierra Nevada show a difference of 8days in pollen collection per 1, ooo-feet difference in elevation, and that his figure agrees moderately well with Hopkins' (5) constant of 4 days for each 400-feet difference in elevation. The order of bloom of trees and shrubs at the Arnold Arboretum has been given by Wyman A method for describing and comparing blooming seasons has been given by Anderson and Hubricht(1). 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: Keith W. Dorman
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 426
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Author: W. C. Cumming
Publisher:
ISBN:
Category : Pine
Languages : en
Pages : 20
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Author: D. L. Bramlett
Publisher:
ISBN:
Category : Pine
Languages : en
Pages : 12
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Author: Margaret Clay Ferguson
Publisher: Forgotten Books
ISBN: 9780484816533
Category : Science
Languages : en
Pages : 252
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Excerpt from Contributions to the Knowledge of the Life History of Pinus With Special Reference to Sporogenesis, the Development of the Gameto Phytes and Fertilization The pro-embryo. Division of the two segmentation-nuclei The four segmentation-nuclei The development of cell-walls Later mitoses in the formation of the pro-embryo The fate within the egg of the smaller sperm-nucleus. 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.
