What aspect of tree health is indicated by compression or extension in response to bending loads?

The aspect of tree health indicated by compression or extension in response to bending loads is cellular integrity. When trees experience bending forces, their cellular structure must respond effectively to maintain stability and strength. This involves the cells within the wood either compressing or extending to accommodate stress.

Cellular integrity reflects the condition of the tree’s internal structures, including the arrangement and health of the cells that make up the wood. If the cells are healthy and structurally sound, they will adapt effectively to bending loads, demonstrating good cellular integrity. Conversely, issues such as decay or structural weaknesses would impair this ability, potentially leading to increased risk of failure.

Overall tree size does not directly relate to how well the tree can handle bending loads. Wood density may be an aspect of a tree's structural properties but doesn't specifically indicate the tree's ability to handle compression and extension under stress. Leaf chlorophyll content pertains to the tree's photosynthetic capabilities and health but does not provide information about the mechanical responses of the tree structure. Thus, cellular integrity is the most relevant aspect in this context.