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Full-Text Articles in Life Sciences

A Severe Epidemic Of Marssonina Leaf Blight On Quaking Aspen In Northern Utah. (A Severe Epidemic Of Marssonina Leaf Blight On Quaking Aspen In Northern Utah [Marssonina Populi, Populus Tremuloides].), R.O. Harniss, D.L. Nelson Jan 1984

A Severe Epidemic Of Marssonina Leaf Blight On Quaking Aspen In Northern Utah. (A Severe Epidemic Of Marssonina Leaf Blight On Quaking Aspen In Northern Utah [Marssonina Populi, Populus Tremuloides].), R.O. Harniss, D.L. Nelson

Aspen Bibliography

No abstract provided.


Effects Of Soil Amendments On Aspen Seedling Production, J.T. Fisher, G.A. Fancher Jan 1984

Effects Of Soil Amendments On Aspen Seedling Production, J.T. Fisher, G.A. Fancher

Aspen Bibliography

No abstract provided.


Shearing Restores Full Productivity To Sparse Aspen Stands, Donald A. Perala Jan 1983

Shearing Restores Full Productivity To Sparse Aspen Stands, Donald A. Perala

Aspen Bibliography

No abstract provided.


Decomposition Rates Of Aspen Bole And Branch Litter, W.E. Miller Jan 1983

Decomposition Rates Of Aspen Bole And Branch Litter, W.E. Miller

Aspen Bibliography

No abstract provided.


Mapping The Distribution Of Aspen Defoliation Using Landsat Color Composites. (Mapping The Distribution Of Aspen Defoliation Using Landsat Color Composites [Malacosoma Disstria, Canada].), R.J. Hall, G.N. Still, P.H. Crown Jan 1983

Mapping The Distribution Of Aspen Defoliation Using Landsat Color Composites. (Mapping The Distribution Of Aspen Defoliation Using Landsat Color Composites [Malacosoma Disstria, Canada].), R.J. Hall, G.N. Still, P.H. Crown

Aspen Bibliography

No abstract provided.


Aspen Regeneration After Commercial Clearcutting In Southwestern Colorado, G.L. Crouch Jan 1983

Aspen Regeneration After Commercial Clearcutting In Southwestern Colorado, G.L. Crouch

Aspen Bibliography

No abstract provided.


Aspen Succession In The Intermountain West: A Deterministic Model, Dale L. Bartos, Frederick R. Ward, George S. Innis Jan 1983

Aspen Succession In The Intermountain West: A Deterministic Model, Dale L. Bartos, Frederick R. Ward, George S. Innis

Aspen Bibliography

No abstract provided.


The Utilization Of Carbohydrates In Aspen Roots Following Partial Or Complete Top Removal, R.D. Fitzgerald, J. Hoddinott Jan 1983

The Utilization Of Carbohydrates In Aspen Roots Following Partial Or Complete Top Removal, R.D. Fitzgerald, J. Hoddinott

Aspen Bibliography

No abstract provided.


Tree Dynamics In Seral And Stable Aspen Stands Of Central Utah, Roy O. Harniss, Kimball T. Harper Jan 1982

Tree Dynamics In Seral And Stable Aspen Stands Of Central Utah, Roy O. Harniss, Kimball T. Harper

Aspen Bibliography

No abstract provided.


Effects Of Partial Cutting On Diseases, Mortality, And Regeneration Of Rocky Mountain Aspen Stands, James W. Walters, Thomas E. Hinds, David W. Johnson, Jerome Beatty Jan 1982

Effects Of Partial Cutting On Diseases, Mortality, And Regeneration Of Rocky Mountain Aspen Stands, James W. Walters, Thomas E. Hinds, David W. Johnson, Jerome Beatty

Aspen Bibliography

No abstract provided.


Ecotypic Differences In Heat Resistance Of Aspen Leaves, K.M. Peck, S.J. Wallner Jan 1982

Ecotypic Differences In Heat Resistance Of Aspen Leaves, K.M. Peck, S.J. Wallner

Aspen Bibliography

Heat resistance of aspen (Populus tremuloides) leaves was assessed by stressing leaf discs in vitro and measuring electrolyte leakage. Leaves were obtained from trees growing at elevations of 1960, 2195, and 2454 m. Heat tolerance was greatest in leaf samples from trees growing at the lowest site. Trees propagated from these sites and grown at 1520 m for 2 years showed some increase in heat tolerance, but apparent ecotypic differences persisted


Aspen Community Types On The Caribou And Targhee National Forests In Southeastern Idaho, Walter F. Mueggler, R.B. Campbell, Jr Jan 1982

Aspen Community Types On The Caribou And Targhee National Forests In Southeastern Idaho, Walter F. Mueggler, R.B. Campbell, Jr

Aspen Bibliography

No abstract provided.


Volume Tables And Point-Sampling Factors For Aspen [Populus Tremuloides] In Colorado, Carleton B. Edminster, H. Todd Mowrer, H. Todd Hinds Jan 1982

Volume Tables And Point-Sampling Factors For Aspen [Populus Tremuloides] In Colorado, Carleton B. Edminster, H. Todd Mowrer, H. Todd Hinds

Aspen Bibliography

No abstract provided.


Scarification Of 3-Year-Old Aspen Suckers: 4- And 6-Year Effects On, And A Preliminary Forecast Of, The Internal Pathological Quality Of The Survivors, J.T. Basham Jan 1982

Scarification Of 3-Year-Old Aspen Suckers: 4- And 6-Year Effects On, And A Preliminary Forecast Of, The Internal Pathological Quality Of The Survivors, J.T. Basham

Aspen Bibliography

No abstract provided.


The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, G.K. Raile, J.T. Hahn Jan 1982

The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, G.K. Raile, J.T. Hahn

Aspen Bibliography

The aspen type in Minnesota occupies about 5.3 million acres, 39 percent of the State's commercial forest land1 Aspen is the State's major commercial species, accounting for 43 percent of all growing-stock removals for products in 1976 (Jakes 1980).


Natural Variation In Merchantable Stem Biomass And Volume Among Clones Of Populus Tremuloides Michx, G.A. Lehn, K.O. Higginbotham Jan 1982

Natural Variation In Merchantable Stem Biomass And Volume Among Clones Of Populus Tremuloides Michx, G.A. Lehn, K.O. Higginbotham

Aspen Bibliography

No abstract provided.


Aspen [Populus Tremuloides] Community Types On The Bridger-Teton National Forest In Western Wyoming [Including A Key With Indicator Species], Andrew P. Youngblood, Walter F. Mueggler Jan 1981

Aspen [Populus Tremuloides] Community Types On The Bridger-Teton National Forest In Western Wyoming [Including A Key With Indicator Species], Andrew P. Youngblood, Walter F. Mueggler

Aspen Bibliography

A classification system is presented for aspen (Populus tremuloides Michx.) dominated forests on the Bridger-Teton National Forest in western Wyoming. Twenty-six aspen community types are defined and described. A diagnostic key that utilizes indicator plant species is provided for field identification of the community types. Vegetation composition, environment, productivity, relationship to surrounding vegetation, and successional status are discussed. Tables are provided for detailed comparisons.


Songbird Populations And Clearcut Harvesting Of Aspen In Northern Utah, Norbert V. Debyle Jan 1981

Songbird Populations And Clearcut Harvesting Of Aspen In Northern Utah, Norbert V. Debyle

Aspen Bibliography

No abstract provided.


The Response Of Aspen (Populus Tremuloides) To Artificial Defoliation, A.C. Hodson Jan 1981

The Response Of Aspen (Populus Tremuloides) To Artificial Defoliation, A.C. Hodson

Aspen Bibliography

No abstract provided.


Uneven-Aged Stand Structure And Growth Of Rocky Mountain Aspen, D.R. Betters, R.F. Wood Jan 1981

Uneven-Aged Stand Structure And Growth Of Rocky Mountain Aspen, D.R. Betters, R.F. Wood

Aspen Bibliography

No abstract provided.


Biomass And Production Of An Aspen-Mixed Hardwood-Spodosol Ecosystem In Northern Wisconsin, John Pastor, J.G. Bockheim Jan 1981

Biomass And Production Of An Aspen-Mixed Hardwood-Spodosol Ecosystem In Northern Wisconsin, John Pastor, J.G. Bockheim

Aspen Bibliography

No abstract provided.


Clone Expansion And Competition Between Quaking And Bigtooth Aspen Suckers After Clearcutting, Donald A. Perala Jan 1981

Clone Expansion And Competition Between Quaking And Bigtooth Aspen Suckers After Clearcutting, Donald A. Perala

Aspen Bibliography

The ability of quaking and bigtooth aspens (Populus tremuloids Michx., P. grandidentata Michx.) to vegetatively regenerate dense stands of root sprouts (suckers) is well documented (Brinkman and Roe 1975). Tens of thousands of suckers per hectare are commonly produced when stands are killed by fire or removed by clearcutting.


Cryptosphaeria Canker And Libertella Decay Of Aspen, Thomas E. Hinds Jan 1981

Cryptosphaeria Canker And Libertella Decay Of Aspen, Thomas E. Hinds

Aspen Bibliography

A recently discovered, widely distributed canker disease of aspen and other poplars throughout the Rocky Mountain region is described. Inoculations with ascospore and conidial isolates of Cryptosphaeria populina show the fungus is capable of causing branch, sprout, and sapling mortality, trunk cankers, and the discoloration and decay of aspen stems previously associated with its imperfect stage, Libertella sp. The greatest average canker elongation 50 mo after September inoculations was 33.5 cm with sapwood decay and discoloration extending to 401 cm. The fungus caused an average weight loss of 13.5% in bark, 27.0% in sapwood, and 19.1% in heartwood blocks. Incidence …


Effects Of Storage Temperature And Moisture Stress On Seed Germination And Early Seedling Development Of Trembling Aspen Populus-Tremuloides, G.H. Fechner, K.E. Burr, J.F. Myers Jan 1981

Effects Of Storage Temperature And Moisture Stress On Seed Germination And Early Seedling Development Of Trembling Aspen Populus-Tremuloides, G.H. Fechner, K.E. Burr, J.F. Myers

Aspen Bibliography

No abstract provided.


Regeneration On Aspen Clearcuts In Northwestern Colorado, G.L. Crouch Jan 1981

Regeneration On Aspen Clearcuts In Northwestern Colorado, G.L. Crouch

Aspen Bibliography

No abstract provided.


Seed Hairs And Seed Germination In Populus, J.F. Myers, G.H. Fechner Jan 1980

Seed Hairs And Seed Germination In Populus, J.F. Myers, G.H. Fechner

Aspen Bibliography

No abstract provided.


Observations On The Ecology And Evolution Of Quaking Aspen, Populus Tremuloides, In The Colorado Front Range, Jeffry B. Mitton, Michael C. Grant Jan 1980

Observations On The Ecology And Evolution Of Quaking Aspen, Populus Tremuloides, In The Colorado Front Range, Jeffry B. Mitton, Michael C. Grant

Aspen Bibliography

No abstract provided.


Above-Ground Component Weights In Alberta Populus Stands, W.D. Johnstone, E.B. Peterson Jan 1980

Above-Ground Component Weights In Alberta Populus Stands, W.D. Johnstone, E.B. Peterson

Aspen Bibliography

No abstract provided.


Effects Of Annual Burning On Grassland In The Aspen Parkland Of East-Central Alberta, Howard G. Anderson, Arthur W. Bailey Jan 1980

Effects Of Annual Burning On Grassland In The Aspen Parkland Of East-Central Alberta, Howard G. Anderson, Arthur W. Bailey

Aspen Bibliography

Annual early spring burning has markedly altered the physiognomy and species composition of aspen parkland vegetation of east-central Alberta. Burning was conducted in April for at least 24 years when soil moisture was normally high. The number of herbaceous species per quadrat doubled while a number of woody species declined slightly.


Rooting Stem Cuttings From Aspen Seedlings, George A. Schier Jan 1980

Rooting Stem Cuttings From Aspen Seedlings, George A. Schier

Aspen Bibliography

No abstract provided.