Results 91 to 100 of about 1,952 (214)

Ethylene and auxin in the control of wood formation [PDF]

open access: yes, 2003
This thesis considers aspects of the regulation of growth rate and fibre properties in forest trees. These properties are both genetically determined and influenced by environmental stimuli.
Jenny Maria Hellgren   +2 more
core  

Modeling the Effect of the Spatial Pattern of Airborne Lidar Returns on the Prediction and the Uncertainty of Timber Merchantable Volume

open access: yesRemote Sensing, 2017
Lidar data are regularly used to characterize forest structures. In this study, we determine the effects of three lidar attributes (density, spacing, scanning angle) on the accuracy and the uncertainty of timber merchantable volume estimates of balsam ...
Sarah Yoga   +3 more
doaj   +1 more source

Forest Dieback of Abies Balsamea in Eastern North America

open access: yesForests
An increased shift in climate change contributes to accelerated forest dieback around the world. Forest dieback is the process of a forest ecosystem suffering from disease, with mortality rates increasing among trees, potentially leading to the death of the ecosystem. Dieback can be caused through a variety of biotic and abiotic factors such as climate
Adrian Bent   +2 more
openaire   +1 more source

Antioxidant Potential of Bark Extracts from Boreal Forest Conifers

open access: yesAntioxidants, 2013
The bark of boreal forest conifers has been traditionally used by Native Americans to treat various ailments and diseases. Some of these diseases involve reactive oxygen species (ROS) that can be prevented by the consumption of antioxidants such as ...
Jean Legault   +3 more
doaj   +1 more source

Effect of Increased Populus Cover on Abies Regeneration in the Picea-feathermoss Boreal Forest

open access: yes, 2011
Question: Does the increase in Populus tremuloides cover within the Picea mariana–feathermoss domain enhance establishment and growth conditions for Abies balsamea regeneration? Location: Boreal forest of northwest Quebec, Canada. Method: To document the
Marie-Lyne Arbour   +3 more
core   +1 more source

Localisation and mobility of trace metal in silver fir needles [PDF]

open access: yes, 2012
Trace metals (TM: Co, Ni, Cu, Zn, Cd, and Pb) as well as Al, Mn, and Fe content was measured in needles of a remote silver fir stand in the south of France. TM localisation and behaviour in needles was evaluated by measuring total and internal content of
Gandois, Laure, Probst, Anne
core   +1 more source

A mechanistic perspective of possible influences of climate change on defoliating insects in North America's boreal forests

open access: yesSilva Fennica, 1996
There is no doubt that tree survival, growth, and reproduction in North America's boreal forests would be directly influenced by the projected changes in climate if they occur.
R.A. Fleming
doaj   +1 more source

Responses of isolated balsam-fir stem segments to exogenous ACC, IAA, and IBA

open access: yesForestry Research
In this investigation, the effects of exogenous indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), and 1-aminocyclopropane-1-carboxylic acid (ACC) on anatomical development within cultured segments of Abies balsamea (L.) Mill.
Rodney Arthur Savidge
doaj   +1 more source

Nutritional Value of Seaweed to Ruminants

open access: yesRangifer, 1995
We compared the nutritional quality (apparent digestible dry matter (ADDM), crude protein, total phenolics, gross energy), of 3 seaweed species (Alaria esculenta, Ascophyllum nodosum, Fucus vesiculosis) to that of 3 woody browse species{Acer rubrum ...
Roger D. Applegate, Patrick B. Gray
doaj   +1 more source

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