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Author : David H. Dawson,John A. Pitcher
Publisher : Unknown
Page : 36 pages
File Size : 52,9 Mb
Release : 1970
Category : Forest products
ISBN : MINN:31951D030014878
Author : George F. Dutrow
Publisher : Unknown
Page : 12 pages
File Size : 53,5 Mb
Release : 1974
Category : Trees
ISBN : MINN:31951D02988024I
Review of current literature establishes that most authors believe that tree improvement expands production, although some point out drawbacks and alternatives. Both softwood and hardwood improvement programs have been analyzed. The authors used various models, economic assumptions, and standards of measurement, but available data were limited. Future models shouId attempt to be more eclectic.
Author : Anonim
Publisher : Unknown
Page : 40 pages
File Size : 54,5 Mb
Release : 1970
Category : Forest genetics
ISBN : MINN:31951D03001494B
Author : United States. Department of the Interior. Library
Publisher : Unknown
Page : 722 pages
File Size : 50,7 Mb
Release : 1969
Category : Library catalogs
ISBN : RUTGERS:39030021681145
Author : North Central Forest Experiment Station (Saint Paul, Minn.).
Publisher : Unknown
Page : 828 pages
File Size : 49,9 Mb
Release : 1968
Category : Forests and forestry
ISBN : WISC:89030612006
Author : Anonim
Publisher : Unknown
Page : 360 pages
File Size : 46,6 Mb
Release : 1981
Category : Forests and forestry
ISBN : OSU:32435024065138
Author : Anonim
Publisher : Unknown
Page : 668 pages
File Size : 46,9 Mb
Release : 1968
Category : Forests and forestry
ISBN : UOM:39015001294886
Author : Anonim
Publisher : Unknown
Page : 316 pages
File Size : 45,8 Mb
Release : 1973
Category : Forests and forestry
ISBN : UOM:39015009916571
Author : Anonim
Publisher : Unknown
Page : 68 pages
File Size : 43,6 Mb
Release : 1973
Category : Timber
ISBN : MINN:31951D029777233
Presents 12 papers concerning recent research in forest genetics, physiology, and allied fields. Species discussed include cottonwood, white spruce, jack pine, white pine, aspen, and others. Emphasizes the role of tree improvement in increasing wood-fiber production.
Author : Margery L. Oldfield
Publisher : Unknown
Page : 386 pages
File Size : 40,9 Mb
Release : 1984
Category : Conservation of natural resources
ISBN : UCR:31210005181498
Author : Charles Lewis Stayton
Publisher : Unknown
Page : 12 pages
File Size : 43,6 Mb
Release : 1971
Category : Hardwoods
ISBN : MINN:31951D030014975
Author : Anonim
Publisher : Unknown
Page : 44 pages
File Size : 52,5 Mb
Release : 1973
Category : Forests and forestry
ISBN : UOM:39015001293946
Author : Anonim
Publisher : Unknown
Page : 682 pages
File Size : 51,6 Mb
Release : 1964
Category : Forests and forestry
ISBN : WISC:89042007138
Author : Knud E. Clausen
Publisher : Unknown
Page : 36 pages
File Size : 42,5 Mb
Release : 1973
Category : Yellow birch
ISBN : MINN:31951D02964717J
Author : David W. Lime
Publisher : Unknown
Page : 24 pages
File Size : 45,5 Mb
Release : 1971
Category : Camping
ISBN : MINN:31951D03001507S
