Lag/Log phase is the middle phase of growth and is characterised by very fast and rapid growth of plant body.

Explanation

### Step-by-Step Solution:

1. **Understanding Plant Growth Phases**:
- Plant growth is typically divided into several phases: lag phase, log (or exponential) phase, and stationary phase. Each phase has distinct characteristics.

2. **Identifying the Lag Phase**:
- The lag phase is the initial phase where the plant is adjusting to its environment. During this time, the plant does not exhibit significant growth. It focuses on establishing itself and preparing for future growth.

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