You have obtained high yielding variety of tomato. Name and explain the procedure that ensure retention of the desired characteristics repeatedly in large population of future generations of the tomato crop.

Explanation

To ensure the retention of desired characteristics in a high-yielding variety of tomato across future generations, the most effective procedure is **tissue culture** or **micropropagation**. Here’s a step-by-step explanation of how this process works:

### Step-by-Step Solution:

1. **Selection of the Parent Plant**:
- Identify and select the high-yielding variety of tomato that exhibits the desired characteristics you wish to retain.

2. **Preparation of Explant**:
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