Question

Spring wood is $\underset{–}{\left(a\right)}$ in colour & has $\underset{–}{\left(b\right)}$ density as compared to heart wood.

• A. (a)-Darker, (b)-Heavier
• B. (a)-Lighter, (b)-Lower
• C. (a)-Darker, (b)-Lower
• D. (a)-Lighter, (b)-Heavier

Answer 1

Answer: (B)

(a)-Lighter, (b)-Lower

Springwood is formed due to the rapid activity of the vascular cambium. The vessels are wider in lumen. It is light and has low density. Heartwood is the wood that has non-functional vessels due to deposition of lignin by tyloses. It appears dark and has more density. So, the correct answer is springwood is lighter in colour and has a lower density as compared to heartwood.