FORESTRY
PLANT AND WOOD ANATOMY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
larger
|
|
smaller
|
|
Either A or B
|
|
None of the above
|
Detailed explanation-1: -The faster growth of early spring makes large cells that are light in color, the lighter colored area is called earlywood or springwood. Summer growth, which is slower, produces cells that are smaller and darker in color, these dark regions are called latewood, or summerwood.
Detailed explanation-2: -Tree rings form in the trunk of a tree from new cells generated in the cambium, the meristem (growing point) that lies just beneath the tree’s bark. In the early part of the growing season when the tree is emerging from dormancy and growing conditions are near perfect cells grow rapidly and are less dense.
Detailed explanation-3: -Due to differential seasonal activity of cambium (during autumn and spring season) alternate light & dense wood is cut off leading to formation of annual rings.
Detailed explanation-4: -Vascular cambium This is a ring of growth tissue that sits in between the sapwood and the inner bark. It is responsible for the creation of xylem (in the sapwood) and phloem (in the inner bark). Phloem cells are responsible for transporting sap containing sugar around the tree and to the roots.