Stratification Period and Germination of Douglas-fir Seed from Oregon Seed Orchards: Two Case Studies PDF Download
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Author: Frank C. Sorensen
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: Frank C. Sorensen
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: Frank C. Sorensen
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 23
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Author: United States. Forest Service
Publisher: Forest Service
ISBN:
Category : Gardening
Languages : en
Pages : 1240
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1240
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 526
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Author: Frank C. Sorensen
Publisher:
ISBN:
Category : Western larch
Languages : en
Pages : 12
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 618
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Author:
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 176
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Book Description
Silvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the regions forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters andperhaps more importantlyto those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research.
Author: Pacific Forestry Centre
Publisher:
ISBN:
Category : Germination
Languages : en
Pages : 164
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Book Description
Proceedings of the symposium, covering dormancy and barriers to germination in rowan, loblolly pine, Pacific silver fir, Douglas- fir, Sitka spruce, western redcedar, yellow-cedar, sugar pine, and Scots pine. General topics cover a seed conditioning concept in Sweden, respiration, strategies for hardwood species, temperature effects, and artificial ripening.
Author:
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 704
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