Results 91 to 100 of about 42,686 (159)

Age and size structure of gap-dynamic, old-growth boreal forest stands in Newfoundland

Silva Fennica, 2006
The age and size structure of trees in old Abies-Picea-Betula forests on Newfoundland’s Great Northern Peninsula were examined. It was hypothesized that the size and age structure of both the tree and regeneration “strata” of these stands ...
McCarthy, John, Weetman, Gordon
doaj   +1 more source

Do Offspring of Insects Feeding on Defoliation-Resistant Trees Have Better Biological Performance When Exposed to Nutritionally-Imbalanced Food?

Insects, 2015
White spruce (Picea glauca (Moench) Voss) trees that are resistant or susceptible to spruce budworm (Choristoneura fumiferana (Clem.)) attack were identified in a southern Quebec plantation.
Roberto Quezada-Garcia, Alvaro Fuentealba, Ngoc Nguyen, Éric Bauce   +3 more
doaj   +1 more source

Involvement of 5mC DNA demethylation via 5-aza-2'-deoxycytidine in regulating gene expression during early somatic embryo development in white spruce (Picea glauca). [PDF]

For Res (Fayettev), 2023
Gao Y, Chen X, Liu C, Zhao H, Dai F, Zhao J, Zhang J, Kong L.   +7 more
europepmc   +1 more source

Birch (Betula papyrifera) × white spruce (Picea glauca) interactions in mixedwood stands: implications for management

Journal of Forest Science, 2013
Current British Columbia forest regulations drive the regeneration management towards pure conifer stands rather than remaining in a mixed-species condition. This approach may result in unnecessary vegetation control.
Ch.D.B. Hawkins, A. Dhar
doaj   +1 more source

A Molecular Identification Protocol for Roots of Boreal Forest Tree Species

Applications in Plant Sciences, 2014
Premise of the study: Roots play a key role in many ecological processes, yet our ability to identify species from bulk root samples is limited. Molecular tools may be used to identify species from root samples, but they have not yet been developed for ...
Morgan J. Randall, Justine Karst, Gregory J. Pec, Corey S. Davis, Jocelyn C. Hall, James F. Cahill Jr.   +5 more
doaj   +1 more source

Transcriptomic, Metabolomic, and Physiological Analyses Reveal That the Culture Temperatures Modulate the Cryotolerance and Embryogenicity of Developing Somatic Embryos in Picea glauca. [PDF]

Front Plant Sci, 2021
Cui Y, Gao Y, Zhao R, Zhao J, Li Y, Qi S, Zhang J, Kong L.   +7 more
europepmc   +1 more source

Modelling wood density and modulus of elasticity in white spruce plantations in Eastern Québec

The Forestry Chronicle, 2019
Forest managers have to take into account multiple objectives such as stand yield, wood quality attributes, ecological constraints and social considerations when making their decisions.
Franceschini Tony, Ferraille Thibaut, Giroud Guillaume, Barrette Julie, Schneider Robert   +4 more
doaj   +1 more source

Northeastern united states species treated with copper-based preservatives: Durability in mississippi stake tests

Maderas: Ciencia y Tecnología, 2018
This paper reports on the ground-contact durability of lesser-used wood species of the northeastern United States after treatment with copper-based preservatives.
Stan T. Lebow, Rachel A. Arango, Patricia K. Lebow, Grant T. Kirker, Mark E. Mankowski, Steven A. Halverson   +5 more
doaj  

Arginine and the shade tolerance of white spruce saplings entering winter dormancy

Journal of Forest Science, 2010
Shade-tolerant white spruce saplings grown at 100, 45, 25, and 13% natural light for four years, and entering winter dormancy, modified their growth habit and redistributed the total soluble N among needles, roots, and stems with buds mainly to arginine ...
D. J. Durzan
doaj   +1 more source

FROM STUDIES ON POSSIBILITY OF PROTECTING BLUE SPRUCE (Picea pungens Engelm.) AGAINST FUNGI. PART II. LABORATORY ASSESSMENT OF ANTIFUNGAL ACTIVITY OF SELECTED ESSENTIAL OILS

Acta Scientiarum Polonorum: Hortorum Cultus, 2007
The antifungal properties of selected essential oils, i.e. lavender, mint, orange, spruce and thyme oils, were checked in vitro to fungi isolated from blue spruce (Picea pungens Engelm.) and its cultivar ‘Glauca’.
Maria Bartyńska, Waldemar Mirski
doaj