The upcoming discussion will update you about the differences between Sapwood or Alburnum and Heartwood.
Difference # Sapwood or Alburnum:
1. It is outer wood of an old stem.
2. It is light coloured.
3. Living cells are present.
4. Sapwood is the functional part of the secondary xylem or wood.
5. The tracheary elements are not plugged by tyloses.
6. Tracheary elements do not possess any deposition in their lumen.
7. Sapwood or alburnum is lighter.
8. It is less durable because it is susceptible to attack by pathogens and insects.
Difference # Heartwood:
1. It is the central wood of an old stem.
2. Heartwood is dark coloured.
3. Living cells are absent.
4. Heartwood is the non-functional part of secondary xylem.
5. The tracheary elements are plugged by tyloses.
6. Tracheary elements have deposition of tannins, resins, gums, etc.
7. Heartwood is heavier.
8. It is more durable due to its little susceptibility to the attack of pathogens and insects.