Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 18 of 18

Full-Text Articles in Life Sciences

The Challenge Of Producing Native Plants For The Intermountain Area, U.S. Forest Service Jan 1983

The Challenge Of Producing Native Plants For The Intermountain Area, U.S. Forest Service

All U.S. Government Documents (Utah Regional Depository)

Germination of wildland seeds is often dependent on proper seed collection and storage. A systematic approach to germination testing will often pinpoint the type of dormancy of seeds in wildland species and lead to germination enhancement.


Xylem Morphology And Discoloration In Bigtooth Aspen (Populus Grandidentata), R.A. Wittberg, R.T. Eckert Jan 1983

Xylem Morphology And Discoloration In Bigtooth Aspen (Populus Grandidentata), R.A. Wittberg, R.T. Eckert

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.


Internal Filters : Prospects For Uv-Acclimation In Higher Plants, Martyn M. Caldwell, Ronald Robberecht, Stephan D. Flint Jan 1983

Internal Filters : Prospects For Uv-Acclimation In Higher Plants, Martyn M. Caldwell, Ronald Robberecht, Stephan D. Flint

Green Canyon Environmental Research Area, Logan Utah

Wavelength-selective absorption of solar radiation within plant leaves allows penetration of visible radiation to the chloroplats, while removing much of the damaging ultraviolet-B radiation. Flavonoids are important in this wavelength-selective absorption. Induction of flavonoid synthesis by solar radiation, and specifically by UV-B radiation, is discussed as this relates to the potential acclimation of plants to enhanced solar UV-B radiation that would result from stratospheric ozone reduction.


Development Of Microstructure In Set-Style Nonfat Yogurt - A Review, Miloslav Kalab, Paula Allan-Wojtas, Beverley E. Phipps-Todd Jan 1983

Development Of Microstructure In Set-Style Nonfat Yogurt - A Review, Miloslav Kalab, Paula Allan-Wojtas, Beverley E. Phipps-Todd

Food Structure

The development of microstructure in natural set-style nonfat yoghurt was stud i ed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In addition to thin-sectioning and conventional SEM described in the literature, this review illustrates gelation of milk with micrographs obtai ned by rotary shadowing of casein micelles and their clusters. The existence of void spaces occupied by lactic acid bacteria in yoghurt was con finned by cold-stage SEM of uncoa ted specimens. The microstructure of yoghurt is affected by the preheat treatment of milk, bacterial starter cultures, total solids content , and the presence of thickening agents. …


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.


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.


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.


Biodeterioration And Strength Reductions In Preservative Treated Aspen Waferboard, E.L. Schmidt, H.J. Hall, R.O. Gertjejansen, C.G. Carll, R.C. Degroot Jan 1983

Biodeterioration And Strength Reductions In Preservative Treated Aspen Waferboard, E.L. Schmidt, H.J. Hall, R.O. Gertjejansen, C.G. Carll, R.C. Degroot

Aspen Bibliography

No abstract provided.


An Indirect Method To Estimate The Aerial Biomass Of Small Single Stemmed Woody Plants, R.D. Fitzgerald Jan 1983

An Indirect Method To Estimate The Aerial Biomass Of Small Single Stemmed Woody Plants, R.D. Fitzgerald

Aspen Bibliography

No abstract provided.


Aspen Management Guidelines For The Grand Mesa, Uncompahgre And Gunnison National Forest, Aspen Management Task Force Jan 1983

Aspen Management Guidelines For The Grand Mesa, Uncompahgre And Gunnison National Forest, Aspen Management Task Force

Aspen Bibliography

A task force was formed in late April 1983 for the purpose of developing guidelines for Aspen Management on the Grand Mesa, Uncompahgre and Gunnison National Forests.


Effects Of Recreation (Trampling) On The Forest Floor And Associated Streams Of Aspen And Conifer Forests, M.C. Molles, J.R. Gosz, R.G. Cates Jan 1983

Effects Of Recreation (Trampling) On The Forest Floor And Associated Streams Of Aspen And Conifer Forests, M.C. Molles, J.R. Gosz, R.G. Cates

Aspen Bibliography

Heavy trampling significantly reduced the biomass of understory vegetation in aspen stands subject to different management procedures (thinning, fertilization). Light trampling also resulted in lower understory biomass except where it was performed in a fertilized aspen stand which had an understory community dominated by grasses. The grass community appears to be more resistant to trampling. Coverage by the understory was also reduced by both heavy and light trampling in aspen stands. The sparse understory of spruce-fir forests was not significantly changed. Trampling fragmented the forest floor in aspen but not in spruce-fir.


Chemical Characteristics Of Precipitation And Hydrogen Input In Throughfall And Stemflow Under Some Eastern Canadian Forest Stands, M.K. Mahendrappa Jan 1983

Chemical Characteristics Of Precipitation And Hydrogen Input In Throughfall And Stemflow Under Some Eastern Canadian Forest Stands, M.K. Mahendrappa

Aspen Bibliography

No abstract provided.


Improved Aspen Mechanical Pulp Through Coarse Grinding And Refining, D.C. Hedquist, J.F. Laundrie Jan 1983

Improved Aspen Mechanical Pulp Through Coarse Grinding And Refining, D.C. Hedquist, J.F. Laundrie

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.


The Effect Of Controlled Burning On Understory Vegetation And Soil Nitrogen In The Aspen-Bunchgrass Type, W. Wallace Covington, Ernest A. Kurmes, James R. Haisley Jan 1983

The Effect Of Controlled Burning On Understory Vegetation And Soil Nitrogen In The Aspen-Bunchgrass Type, W. Wallace Covington, Ernest A. Kurmes, James R. Haisley

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.


Data For Prediction Of Mechanical Properties Of Aspen Flakeboards, C.G. Carll, P. Wang Jan 1983

Data For Prediction Of Mechanical Properties Of Aspen Flakeboards, C.G. Carll, P. Wang

Aspen Bibliography

No abstract provided.