annual ring (growth ring)
Definition
Glossary of Plant Systematics (1st ed.) by Simpson (2006)
- (as annual ring) The accumulation of secondary xylem (or phloem) over a single growing season, being evident because of the structural difference between the last cells of the summer wood and the first cells of the subsequent spring wood.
- (as growth ring) Rings in the cross section of woody stems that usually represent the xylem formed in one year of growth.
文献(引用)
年輪について
参考文献
広島大学 / デジタル自然史博物館 / 植物 / アルファベット順 / A | 仮名順 にもどる