Genetic Structure and Variation of Isolated Douglas-Fir Populations in Southwestern North America and Northern Mexico PDF Download
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Author: Eddy Bressler
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 108
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Author: Eddy Bressler
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 108
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Book Description
Author: W.T. Adams
Publisher: Springer Science & Business Media
ISBN: 9401128154
Category : Science
Languages : en
Pages : 423
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Book Description
Tropical climates, which occur between 23°30'N and S latitude (Jacob 1988), encompass a wide variety of plant communities (Hartshorn 1983, 1988), many of which are diverse in their woody floras. Within this geographic region, temperature and the amount and seasonality of rainfall define habitat types (UNESCO 1978). The F AO has estimated that there 1 are about 19 million km of potentially forested area in the global tropics, of which 58% were estimated to still be in closed forest in the mid-1970s (Sommers 1976; UNESCO 1978). Of this potentially forested region, 42% is categorized as dry forest lifezone, 33% is tropical moist forest, and 25% is wet or rain forest (Lugo 1988). The species diversity of these tropical habitats is very high. Raven (1976, in Mooney 1988) estimated that 65% of the 250,000 or more plant species of the earth are found in tropical regions. Of this floristic assemblage, a large fraction are woody species. In the well-collected tropical moist forest of Barro Colorado Island, Panama, 39. 7% (481 of 1212 species) of the native phanerogams are woody, arborescent species (Croat 1978). Another 21. 9% are woody vines and lianas. Southeast Asian Dipterocarp forests may contain 120-200 species of trees per hectare (Whitmore 1984), and recent surveys in upper Amazonia re corded from 89 to 283 woody species ~ 10 cm dbh per hectare (Gentry 1988). Tropical communities thus represent a global woody flora of significant scope.
Author:
Publisher:
ISBN:
Category : Biodiversity conservation
Languages : en
Pages : 692
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Book Description
Author: David B. Neale
Publisher: Springer
ISBN: 3319468073
Category : Science
Languages : en
Pages : 593
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Book Description
This book is the first comprehensive volume on conifers detailing their genomes, variations, and evolution. The book begins with general information about conifers such as taxonomy, geography, reproduction, life history, and social and economic importance. Then topics discussed include the full genome sequence, complex traits, phenotypic and genetic variations, landscape genomics, and forest health and conservation. This book also synthesizes the research included to provide a bigger picture and suggest an evolutionary trajectory. As a large plant family, conifers are an important part of economic botany. The group includes the pines, spruces, firs, larches, yews, junipers, cedars, cypresses, and sequoias. Of the phylum Coniferophyta, conifers typically bear cones and evergreen leaves. Recently, there has been much data available in conifer genomics with the publication of several crop and non-crop genome sequences. In addition to their economic importance, conifers are an important habitat for humans and animals, especially in developing parts of the world. The application of genomics for improving the productivity of conifer crops holds great promise to help provide resources for the most needy in the world.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 696
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Author: Jules Janick
Publisher: John Wiley & Sons
ISBN: 0470650338
Category : Science
Languages : en
Pages : 388
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Book Description
Plant Breeding Reviews presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular methods. Many of the crops widely grown today stem from a very narrow genetic base; understanding and preserving crop genetic resources is vital to the security of food systems worldwide. The emphasis of the series is on methodology, a fundamental understanding of crop genetics, and applications to major crops. It is a serial title that appears in the form of one or two volumes per year.
Author:
Publisher:
ISBN:
Category : Coast live oak
Languages : en
Pages : 876
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 298
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Book Description
Author: Western Forest Genetics Association
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 762
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Book Description
Author:
Publisher:
ISBN:
Category : Forest nurseries
Languages : en
Pages : 164
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