Texas FFA Nursery Landscape Practice Exam

What benefit do thinning cuts provide during the pruning process?

1. They remove entire branches

2. They leave behind a good portion of the stem with many axillary buds

3. They primarily promote flowering

4. They discourage new growth

The correct answer is: They leave behind a good portion of the stem with many axillary buds

Thinning cuts are a specific type of pruning technique that involve the selective removal of branches to improve air circulation, light penetration, and overall plant health. When these cuts are made, they remove portions of the branches while leaving a portion of the stem intact, which can retain axillary buds. This is beneficial because it encourages new growth in a controlled manner, enhancing the plant's overall structure and vitality. By leaving behind the axillary buds, thinning cuts allow for the possibility of new shoots developing from these areas, which contributes to a fuller and more vigorous plant. This technique is particularly useful in promoting a balanced shape and encouraging healthy growth rather than preventing it, as seen in options that focus on discouraging new growth. Additionally, while promoting flowering is a consideration in some pruning practices, the primary benefit of thinning cuts lies in maintaining healthy growth and structure through the strategic removal of branches.