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Author: Donald Paige Fowler
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 20
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Book Description
Author: Donald Paige Fowler
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 20
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Book Description
Author: James W. Hanover
Publisher:
ISBN:
Category : Spruce
Languages : en
Pages : 20
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Author: D. P. Fowler
Publisher: Forgotten Books
ISBN: 9780331397369
Category :
Languages : en
Pages : 20
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Book Description
Excerpt from Genetics of Engelmann Spruce Engelmann spruce is widely distributed in the Western United States and Canada, where it occurs from British Columbia and Alberta in the north to New Mexico and Arizona in the south (fig. 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: David F. Van Haverbeke
Publisher:
ISBN:
Category : Spruce
Languages : en
Pages : 12
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Book Description
Analyses of 43 blue spruce populations at age 12 (9 years in the field) revealed significant differences among populations for survival, height, vigor, crown diameter, frost injury, and foliage color. Use of regions increases the probability of locating better seeds sources, but high variability among individual populations within regions limits their value in specifying where better seed sources can be collected. Phenotypes should be selected in best stands within regions.
Author: Hans Nienstaedt
Publisher:
ISBN:
Category : White spruce
Languages : en
Pages : 32
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Author: Robert R. Alexander
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 44
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Author: Ilga M. Porth
Publisher: Springer Nature
ISBN: 3030210014
Category : Science
Languages : en
Pages : 225
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Book Description
This book offers comprehensive information on the genomics of spruces (Picea spp.), naturally abundant conifer tree species that are widely distributed in the Northern Hemisphere. Due to their tremendous ecological and economic importance, the management of forest genetic resources has chiefly focused on conservation and tree improvement. A draft genome sequence of the 20-gigabase Norway spruce genome was published in the journal Nature in 2013. Continuous efforts to improve the spruce genome assembly are underway, but are hindered by the inherent characteristics of conifer genomes: high amounts of repetitive sequences (introns and transposable elements) in the genome and large gene family expansions with regards to abiotic stress, secondary metabolism and spruces' defense responses to pathogens and herbivory. This book presents the latest information on the status of genome assemblies, provides detailed insights into transposable elements and methylation patterns, and highlights the extensive genomic resources available for inferring population genomics and climate adaptation, as well as emerging genomics tools for tree improvement programs. In addition, this volume features whole-genome comparisons among conifer species, and demonstrates how functional genomics can be used to improve gene function annotations. The book closes with an outlook on emerging fields of research in spruce genomics.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 690
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 514
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Author: Chang-Yi Xie
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 38
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Book Description
Interior spruce (the white spruce/Engelmann spruce complex) is the most commonly planted tree in British Columbia and has the greatest value to the forest economy of the province. The Ministry of Forests initiated an ambitious breeding program for interior spruce in the late 1960s aimed at producing sufficient quantities of genetically improved seeds to meet demand for forest regeneration. The program started with designating three selection units across the complex, based mostly on biogeoclimatic information. In each unit, desirable phenotypes were selected and their genetic merit was tested in open pollinated progeny trials. This report summarizes 20-year test results on the performance & variability of the selected open-pollinated families in the East Kootenay selection unit. Results are presented regarding height growth, survival rates, diameter, stem volume, and variations in parameters among specific sites in the unit.
