Why Spring Wood Is Lighter?

In springwood when cambium is more active cells are formed that are larger and have wide lumen and make the cell wall thin. These have less amount of xylem fibres that are present in secondary xylem and due to this reason density of spring wood is less.

Why is spring wood lighter than summer wood?

is that springwood is the wood in a tree's growth ring formed earlier in the growing season, when growth is more rapid, thus composed of wider elements and usually lighter in colour while summerwood is the wood in a tree's growth ring formed later in the growing season, when growth is less rapid.

What is the colour of spring wood?

Spring Wood color is primarily a color from Grey color family. It is a mixture of orange and brown color.