Pruning effect relates to root/shoot balance?

Pruning effect relates to root/shoot balance?

• A. Leaves and stems
• B. Roots and shoots
• C. Trunk and canopy
• D. Flowers and fruit

Answer: (B)

Pruning mainly changes how a plant distributes its energy and hormonal signals between its underground and above-ground parts. When you cut back the canopy, the plant has fewer leaves to capture light, which lowers the photosynthate available for growth. That shift affects the balance of growth between roots and shoots, often described as the root/shoot ratio. The plant may adjust by altering root versus shoot growth to reestablish a stable supply of water, nutrients, and carbohydrates, depending on how and where you prune. So the effect you're measuring with pruning is really about how the plant reallocates resources to roots and shoots.

Leaves and stems, trunk and canopy, or flowers and fruit each describe parts of the plant, but they don’t capture the dynamic resource balance that pruning influences.