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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > anatomy and morphology > plant anatomy > plant vascular system > vascular tissues > xylem > secondary xylem > growth rings
Fields of Study > botany > plant biology > plant anatomy > plant vascular system > vascular tissues > xylem > secondary xylem > growth rings
Plant Production, Gardening > botany > plant biology > plant anatomy > plant vascular system > vascular tissues > xylem > secondary xylem > growth rings
Fields of Study > anatomy and morphology > plant anatomy > plant tissues > vascular tissues > xylem > secondary xylem > growth rings
Fields of Study > botany > plant biology > plant anatomy > plant tissues > vascular tissues > xylem > secondary xylem > growth rings
Plant Production, Gardening > botany > plant biology > plant anatomy > plant tissues > vascular tissues > xylem > secondary xylem > growth rings
Fields of Study > anatomy and morphology > tissues > plant tissues > vascular tissues > xylem > secondary xylem > growth rings
Fields of Study > anatomy and morphology > plant anatomy > wood anatomy > secondary xylem > growth rings
Fields of Study > botany > plant biology > plant anatomy > wood anatomy > secondary xylem > growth rings
Plant Production, Gardening > botany > plant biology > plant anatomy > wood anatomy > secondary xylem > growth rings
Preferred Term:

growth rings

Definition:
The layer of wood growth put on a tree during a single growing season. In the temperate zone, the annual growth rings of many species (e.g., oaks and pines) are readily distinguished because of the differences in the cells formed during the early and late parts of the season. In some temperate zone species (e.g., black gum and sweetgum) and many tropical species, annual growth rings are not easily recognized.
Concept Schemes:
NALT Core
NALT Full
Broader Concept:
secondary xylem
Narrower Concepts:
Related Concepts:
Entry Terms:
  • growth-rings
  • tree growth rings
  • tree rings
  • tree-rings
  • annual growth rings
  • annual rings
URI:
https://lod.nal.usda.gov/nalt/32283
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2018-03-07
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