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Galls
-
Ball-shaped growths on plants resulting from insects, fungi, bacteria, or injury.
Genotype
- The genetic constitution of an individual, usually
expressed in terms of genes; sometimes defined as a group of trees
having similar genetic constitutions with regard to certain genes.
Genus
-
Group of animals or plants, usually containing several species, having common structural charact eristics.
Geographic Information System (GIS)
- An information system
that uses a spatial database to provide answers to queries of
a geographical nature through a variety of manipulations, such
as sorting, selective retrieval, calculation, spatial analysis,
and modelling.
Geometric Thinning
- see Thinning: mechanical
Girdling
- Completely encircling the trunk of a tree with
a cut that severs the bark and cambium (active growing layer of
cells) and usually penetrates into the sapwood to kill the tree
by preventing the conduction of nutrients.
Grain
-
Term used to describe the general direction of the longitudinal wood in a tree.
Graft
- noun: A plant that has been grafted.
- verb: To place a detached cutting or branch tip (scion) in close cambial contact with a rooted stem (understock) in such a manner that
scion and understock unite.
Grain
- Term used to describe the general direction of the
longitudinal wood in a tree.
Greenhouse Effect
-
The steady warming of the earth's atmosphere, caused by the accumulation of greenhouse gases, including carbon dioxide.
Group-Selection Method
- A method of regenerating uneven-aged
stands in which trees are removed in small groups.
Growing Stock
- All the trees growing in a forest or in a
specified part of it, generally expressed in terms of number or
volume.
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