Genetic Variation of Douglas-fir in the Northern Rocky Mountains PDF Download
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Author: G. E. Rehfeldt
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Book Description
Author: G. E. Rehfeldt
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Book Description
Author: Roy R. Silen
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 44
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Author: California Gene Resources Program
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 292
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Book Description
Author: David F. van Haverbeke
Publisher: Forgotten Books
ISBN: 9780365210009
Category : Business & Economics
Languages : en
Pages : 680
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Book Description
Excerpt from Genetic Variation in Douglas-Fir: A 20-Year Test of Provenances in Eastern Nebraska Home Range Size of Hawk Owls: Dependence on Calculation Method, Number of Tracking Days. 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: Eddy Bressler
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 108
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Author: Robert K. Campbell
Publisher: Forgotten Books
ISBN: 9780331359800
Category :
Languages : en
Pages : 34
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Excerpt from Genetic Variation and Seed Zones of Douglas-Fir in the Siskiyou National Forest Because of the range in elevations and the diversity in climate and vegetation within the region, the Forest has been partitioned into six breeding blocks, each including 460-meter and 305-meter elevational bands. This translates into 22 units that must be considered in breeding plans. There is uncertainty whether this number is justified by adaptational or other constraints, and larger blocks would greatly decrease the costs of breeding and increase the benefits. 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: G. E. Rehfeldt
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 32
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Book Description
Author: G. E. Rehfeldt
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Book Description
![Results from Genetic Tests of Selected Parents of Douglas-Fir (Pseudotsuga Menziesii [Mirb.] Franco) in an Applied Tree Improvement Program PDF](https://books.google.com/books/content/images/frontcover/r904AQAAIAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category : Douglas Fir
Languages : en
Pages : 40
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Book Description
Author: James E. Eckenwalder
Publisher: Timber Press
ISBN: 0881929743
Category : Science
Languages : en
Pages : 745
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Book Description
Researched for more than three decades, this definitive work provides up-to-date descriptions of all the true conifers of the world, including 545 species of trees and shrubs. Written for accessibility to both horticultural and botanical audiences, it is the first comprehensive update of conifer taxonomy in nearly a century. Noted conifer taxonomist James E. Eckenwalder also discusses the relationships among the groups, practical usages, champion trees, fossil occurrences, and biology. New identification guides for the families and genera are based whenever possible on foliage features and thus should be easier to use than traditional conifer keys, which focus on seasonal, and often microscopic, cone characters. Eckenwalder shares the reasoning behind his taxonomic decisions, many of which are unique to this book, reflecting a comprehensive reevaluation of conifer classification. He also outlines the features sought in cultivars of each genus, particular cultivation concerns, and conifers recommended for cultivation under various conditions and to achieve different effects. Some 3,000 cultivars have been available in recent times, more than five times the total number of conifer species. Several hundred original illustrations include drawings of the seed cones for all genera as well as for representative species. Maps of the natural distribution of each genus allow for easy comparison of ranges. Handsome black-and-white photographs of species in their natural habitats and attractive color photos further enrich the volume. More than 100 images reproduce foliage of many genera as an aid in identification. With its unprecedented attention to detail and extensive bibliography, this major work is an essential reference for botanists, naturalists, and horticulturists.
