growth ring


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Related to growth ring: annual ring, Tree rings

growth ring

n.
1. A growth layer in secondary xylem seen in a cross section of a woody stem or branch.
2. A layer of calcareous material or other substance deposited in a single period of growth of an animal, as in an otolith or a turtle scute.

growth ring

n
(Botany) another name for annual ring

growth ring

A layer of wood formed in a plant during a single period of growth. Growth rings are visible as concentric circles of varying width when a tree is cut crosswise. They represent layers of cells produced by the tissue known as vascular cambium. ♦ Most growth rings reflect a full year's growth and are called annual rings. But abrupt changes in the environment, especially in the availability of water, can cause a plant to produce more than one growth ring in a year. See more at dendrochronology.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.growth ring - an annual formation of wood in plants as they growgrowth ring - an annual formation of wood in plants as they grow
organic phenomenon - (biology) a natural phenomenon involving living plants and animals
References in periodicals archive ?
CP 89-2376 has a light-green growth ring and the buds do not touch (subtends) the growth ring.
THE VERMONT LEGISLATURE has rewritten state stormwater laws in an effort to protect water quality in the growth ring around Burlington, where rivers and brooks run into Lake Champlain.
The distance from the center of the spine section to the outer edge of each growth ring was measured in microns with the Image-Pro software package after calibration against an optical micrometer.
In dicot plants, a new layer of xylem is produced by the secondary growth system, the cambium, each year (or several times each year in some tropical trees) forming a new growth ring in trunks and branches.
Wedge-shaped sections which result from radial sawing are stable, with consistent growth ring orientation, and they shrink evenly; boards made out of the wedges are not stable, but cup in the same direction on drying, so they can be arranged consistently.
method, and the shell outer growth ring method worked only for specimens younger than 6 y old (Fisheries Agency 1977).
Dietrich Hakelberg from the Institute of Forest Growth of the University of Freiburg has succeeded in precisely dating four water wells built by the first Central European agricultural civilization with the help of dendrochronology or growth ring dating.
The purpose of this study was to examine aspects of the early life history of spotted sand bass and barred sand bass by using daily growth ring and settlement check analysis of young-of-the-year (YOY) specimens.
Boards with similar growth ring orientation show similar shrinking and warping tendencies.
An alternative to mark-recapture is marginal increment analysis in which the distance from the growth ring to the edge of the otolith, for a sample of fish, is tracked over time (Campana, 2001) and a sharp drop in this marginal increment, once a year, is taken as an indication of annual ring formation.
The cambium is the part of a tree just below the bark, in which the plant's new growth occurs, the cellular deposits forming each year's growth ring.