Flashcards in AC-Ch. 8 Pruning Deck (33)
Plant growth regulator that inhibits the action of the plant hormone gibberellin, which, among other things, regulates cell elongation.
Inhibition of lateral buds, decreasing from the top down, by apical buds over many seasons, resulting in trees with an excurrent growth form.
Raised strip of bark at the top of the branch union, where the growth and expansion of the trunk or parents stem and adjoining branch push the bark into a ridge
Branch Bark Ridge
Forked stems nearly the same size and diameter, arising from a common junction and lacking a normal branch union.
Natural defense process in trees by which chemical and physical boundaries are created that act to limit the spread of disease and decay organisms
In pruning, the selective removal of dead, dying, diseased, and broken branches from the tree crown
Specialized technique of pruning and training plants to grow within a plane, such as along A wall or fence.
Large, divided Leaf structures found in palms and ferns
Cutting a shoot back to a bud or cutting branches back to buds, stubs, or lateral branches not large enough to assume apical dominance. Cutting an older branch or stem back to a stub in order to meet a structural objective.
Bark that becomes embedded in a crotch between branch and trunk or between codominant stems. Causes a weak structure.
Between the nodes on a stem
Secondary or subordinate branch or root
Primary terminal shoot or trunk of a tree. Large usually upright stem. A stem that dominates a portion of the crown by suppressing lateral branches
Poor pruning practice in which an excessive number of branches are thinned from the inside and lower part of specific limbs or a tree crown leaving mostly terminal foliage. Results in poor branch taper poor wind load distribution and a higher risk of branch failure
In structural pruning of young trees branches that will be left in place often forming the initial scaffold framework of a tree.
Compound effective in small quantities that affects the growth and/or development of plants.
Plant growth regulator
Specialty pruning technique in which a tree with a large maturing form is kept Relatively short. Starting on a young tree, internodal cuts are made at a chosen height, resulting in the development of callus knobs at the cut height. Requires regular removal of the sprouts arising from the cuts.
Selective pruning to provide vertical clearance.
Pruning to decrease height and/Or spread of a branch or crown
Pruning cut that reduces the length of a branch or stem back to a lateral branch large enough to assume apical dominance
Pruning to improve the structure, form, and appearance of trees that have been improperly trimmed, vandalized, or damaged.
Management and planting to restore altered or damaged ecosystems or landscapes
Permanent or structural branches that form the scaffold architecture or structure of a tree
Pruning to establish a strong arrangement or system of scaffold branches
Prune to reduce the size and ensuring growth of a branch in relation to other branches or leaders.
In structural pruning of young trees, branches that are left in place or subordinated but will be removed later in forming the permanent scaffold framework of a tree.
In pruning, the selective removal of life branches to provide light or air penetration through the tree or to lighten the weight of the remaining branches.
Inappropriate pruning techniques to reduce tree size. Cutting back a tree to a predetermined crown limit, often at internodes
Pruning around or near utility facilities with the object of maintaining safe and reliable utility service.