What is the mechanism underlying the phenomenon by which the terminal or apical bud suppresses the growth of lateral buds ? Suggest measures to overcome the phenomenon.

Explanation

### Step-by-Step Solution:

1. **Understanding Apical Dominance**:
- Apical dominance is a phenomenon where the terminal or apical bud suppresses the growth of lateral buds. This occurs because the apical bud is the primary growth point of the plant.

2. **Role of Auxins**:
- The mechanism behind apical dominance is primarily due to the production of auxins, which are plant hormones. The apical bud produces a high concentration of auxins that inhibit the growth of lateral buds. Auxins promote cell elongation and growth in the apical region while simultaneously suppressing the growth of lateral buds.

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