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Arboriculture Glossary of TermsThere are 1070 entries in this glossary.
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predetermined set of procedures by which emergency situations are assessed and handled.
loop created in the end of a rope by forming any of numerous knots.
type of mycorrhizae that grow within root cells. See mycorrhizae. Contrast with ectomycorrhizae.
electrical conductor through which electrical current is flowing and is thus energized. This may be intended and expected or the unintended and unexpected result of an electrical short.
potential to do work.
material used as a construction base that is different from the surrounding soil profile and has a known compaction rate or load-bearing capacity.
mineral fertilizer, not coming from plant or animal sources. Contrast with organic fertilizer.
term describing a leaf margin without teeth.
shoot arising from a latent or adventitious bud (growth point).
outer tissue of leaves, stems, roots, flowers, and seeds.
downward curling of the leaf blade resulting from more rapid cell growth on the upper side of the petiole than on the lower side. Often a symptom of plant disease. Distortion of growth, often caused by certain types of herbicides.
nonparasitic plant that uses another plant as a host for mechanical support only but does not derive nutrients or water from it. Contrast with parasite and saprophyte.
total removal of a species from a particular area. May refer to pathogens or insect pests or to unwanted plants.
(1) (noun) specialized technique of pruning and training plants to grow within a plane, such as along a wall or a fence. (2) (noun) a plant trained in that manner. (3) (verb) to train plants in that manner.
17 minerals essential to the growth and development of trees. These minerals are essential because plants cannot complete their life cycle without them. See macronutrient, micronutrient, and primary elements.
plant growth regulator used to promote fruit ripening. Also stimulates latex flow in rubber trees.
gaseous plant hormone that triggers fruit ripening and plant senescence.
loss of water by evaporation from the soil surface and transpiration by plants.
tree or other plant that does not shed all of its foliage annually. Contrast with deciduous.
tree growth habit characterized by a central leader and a pyramidal crown. Contrast with decurrent.
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