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Full-Text Articles in Forest Sciences
European Aspen With High Compared To Low Constitutive Tannin Defenses Grow Taller In Response To Anthropogenic Nitrogen Enrichment, Franziska Bandau, Benedicte Riber Albrectsen, Kathryn M. Robinson, Michael J. Gundale
European Aspen With High Compared To Low Constitutive Tannin Defenses Grow Taller In Response To Anthropogenic Nitrogen Enrichment, Franziska Bandau, Benedicte Riber Albrectsen, Kathryn M. Robinson, Michael J. Gundale
Aspen Bibliography
Boreal forests receive nitrogen-(N)-enrichment via atmospheric deposition and industrial fertilization. While it is known that N-enrichment can intensify interactions with natural antagonists, it remains poorly understood how genetic variability in plant defense chemistry can affect biotic interactions and height growth in N-enriched environments. We grew replicates of five low- and high-tannin Populus tremula genotypes, respectively, under three N-treatments (ambient, 15, and 150 kg N ha−1 yr−1). We assessed shoot blight occurrence (i.e. symptoms caused by Venturia fungi) during four growing seasons, and tree height growth during the same period. Damage by Venturia spp. increased with N-addition during all years, likely …
Genetic Parameters Of Growth And Adaptive Traits In Aspen (Populus Tremuloides): Implications For Tree Breeding In A Warming World, Chen Ding, Andreas Hamann, Rong-Cai Yang, Jean S. Brouard
Genetic Parameters Of Growth And Adaptive Traits In Aspen (Populus Tremuloides): Implications For Tree Breeding In A Warming World, Chen Ding, Andreas Hamann, Rong-Cai Yang, Jean S. Brouard
Aspen Bibliography
Aspen (Populus tremuloides Michx) is a widespread commercial forest tree of high economic importance in western Canada and has been subject to tree improvement efforts over the past two decades. Such improvement programs rely on accurate estimates of the genetic gain in growth traits and correlated response in adaptive traits that are important for forest health. Here, we estimated genetic parameters in 10 progeny trials containing >30,000 trees with pedigree structures based on a partial factorial mating design that includes 60 half-sibs, 100 full-sib families and 1,400 clonally replicated genotypes. Estimated narrow-sense and broad-sense heritabilities were low for height …
Growth And Phenology Of Hybrid Aspen Clones (Populus Tremula L. X Populus Tremuloides Michx.), Qibin Yu, P.M.A. Tigerstedt, Matti Haapenen
Growth And Phenology Of Hybrid Aspen Clones (Populus Tremula L. X Populus Tremuloides Michx.), Qibin Yu, P.M.A. Tigerstedt, Matti Haapenen
Aspen Bibliography
Height, basal diameter, diameter at breast height, bud burst, and leaf development were recorded in a 5-year-old hybrid aspen clonal trial. The field trial consisted of four aspen hybrid clones (Populus tremula x Populus tremuloides) and one local P. tremula seedling source. Phenological traits were observed in the 3rd year. Growth patterns were recorded during the 3rd and 4th years. Phenological traits were explored in relation to hybrid vigor expressed as growth traits. Differences were observed for phenological and growth traits among hybrid clones and P. tremula. The growth period varied from 143–158 days for the four hybrid clones, and …
Toxicity Of Aspen Wood Leachate To Aquatic Life: Laboratory Studies, Barry R. Taylor, J. Stephen Goudey, N. Bruce Carmichael
Toxicity Of Aspen Wood Leachate To Aquatic Life: Laboratory Studies, Barry R. Taylor, J. Stephen Goudey, N. Bruce Carmichael
Aspen Bibliography
No abstract provided.
White Pine Weevil Response To Oak Overstory Girdling - Results From A 16-Year-Old Study, S.A. Katovich, F.S. Morse
White Pine Weevil Response To Oak Overstory Girdling - Results From A 16-Year-Old Study, S.A. Katovich, F.S. Morse
Aspen Bibliography
No abstract provided.
Management Of Aspen In The Central Rocky Mountains: An Application Of Multiple Use Silviculture, Wayne D. Shepperd
Management Of Aspen In The Central Rocky Mountains: An Application Of Multiple Use Silviculture, Wayne D. Shepperd
Aspen Bibliography
No abstract provided.
Development Of An Aspen Sucker Stand Following Irrigation And Fertilization, G.W. Wyckoff, D.W. Einspahr, M.K. Benson
Development Of An Aspen Sucker Stand Following Irrigation And Fertilization, G.W. Wyckoff, D.W. Einspahr, M.K. Benson
Aspen Bibliography
A 16-18 year-old aspen stand was harvested in 1969. Aerial biomass components were determined and soils evaluated. Treatments of fertilizer, irrigation, fertilizer + irrigation and control were applied over a seven year period following harvest. Stand measurements were taken periodically over 18 years. Fertilization produced growth increases of 45-55 percent. Height, diameter, and stems per acre were affected by treatments. Guidelines for fertilizer application were developed from leaf tissue analysis.
Silviculture And Management Of Aspen In Canada: The Western Canada Scene, S. Navratil, I.E. Bella, E.B. Peterson
Silviculture And Management Of Aspen In Canada: The Western Canada Scene, S. Navratil, I.E. Bella, E.B. Peterson
Aspen Bibliography
No abstract provided.
Growth Of Nitrogen-Fertilized And Thinned Quaking Aspen (Populus Tremuloides Michx.), Donald A. Perala, P.R. Laidly
Growth Of Nitrogen-Fertilized And Thinned Quaking Aspen (Populus Tremuloides Michx.), Donald A. Perala, P.R. Laidly
Aspen Bibliography
No abstract provided.
Aspnorm: A Normal Diameter Distribution Growth And Yield Model For Aspen In The Central Rocky Mountains, H.T. Mowrer
Aspnorm: A Normal Diameter Distribution Growth And Yield Model For Aspen In The Central Rocky Mountains, H.T. Mowrer
Aspen Bibliography
No abstract provided.
Effects Of Chemical Weed Control And Seedling Planting Depth On Survival And Growth Of Aspen, G.L. Reighard, G. Howe, J.W. Hanover
Effects Of Chemical Weed Control And Seedling Planting Depth On Survival And Growth Of Aspen, G.L. Reighard, G. Howe, J.W. Hanover
Aspen Bibliography
No abstract provided.
Growth In Aspen: Ecology And Management In The Western United States, John R. Jones, George A. Schier
Growth In Aspen: Ecology And Management In The Western United States, John R. Jones, George A. Schier
Aspen Bibliography
No abstract provided.
Effects Of Water And Temperature In Aspen: Ecology And Management In The Western United States, J.R. Jones, Merrill R. Kaufmann, E.A. Richardson
Effects Of Water And Temperature In Aspen: Ecology And Management In The Western United States, J.R. Jones, Merrill R. Kaufmann, E.A. Richardson
Aspen Bibliography
No abstract provided.
Rmyld Update: New Growth And Yield Relationships For Aspen, C.B. Edminster, H.T. Mowrer
Rmyld Update: New Growth And Yield Relationships For Aspen, C.B. Edminster, H.T. Mowrer
Aspen Bibliography
No abstract provided.
The Utilization Of Carbohydrates In Aspen Roots Following Partial Or Complete Top Removal, R.D. Fitzgerald, J. Hoddinott
The Utilization Of Carbohydrates In Aspen Roots Following Partial Or Complete Top Removal, R.D. Fitzgerald, J. Hoddinott
Aspen Bibliography
No abstract provided.
Response Of Suppressed Conifer Seedlings To Release From An Aspen-Pine Overstorey, A.B. Berry
Response Of Suppressed Conifer Seedlings To Release From An Aspen-Pine Overstorey, A.B. Berry
Aspen Bibliography
No abstract provided.
Clone Expansion And Competition Between Quaking And Bigtooth Aspen Suckers After Clearcutting, Donald A. Perala
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.
Observations On The Ecology And Evolution Of Quaking Aspen, Populus Tremuloides, In The Colorado Front Range, Jeffry B. Mitton, Michael C. Grant
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.
Metric Site Index Curves For Aspen, Birch And Conifers In The Lake States, P.R. Laidly
Metric Site Index Curves For Aspen, Birch And Conifers In The Lake States, P.R. Laidly
Aspen Bibliography
No abstract provided.
Height-Growth Comparisons Of Some Quaking Aspen Clones In Arizona, John R. Jones, David P. Trujillo
Height-Growth Comparisons Of Some Quaking Aspen Clones In Arizona, John R. Jones, David P. Trujillo
Aspen Bibliography
No abstract provided.
Clear Cutting Alternate Strips And Scarifying In White Spruce And White Spruce-Trembling Aspen Stands To Induce Natural White Spruce Regeneration, Manitoba And Saskatchewan, V.S. Kolabinski
Aspen Bibliography
No abstract provided.