Question

Annual ring involves

• A. Early wood and late wood
• B. Heart wood
• C. Sapwood
• D. None of the above

Answer 1

Answer: (A)

Early wood and late wood

One annual ring is composed of a ring of early wood and a ring of late wood. Growth ring, in a cross section of the stem of a woody plant, the increment of wood added during a single growth period.

In temperate regions, the growth period is usually one year in which case the growth ring may be called as an 'annual ring'.

The inner portion of a growth ring is formed early in the growing season, when growth is comparatively rapid (hence the wood is less dense) and is known as "early wood" (or "spring wood", or "late-spring wood"); the outer portion is the "late wood" and is denser. Thus, the correct answer is option A.