Give two important contribution of DR. MS Swaminathan .

Explanation

**Step-by-Step Solution:**

1. **Identify the Individual**: Dr. M. S. Swaminathan is a renowned agricultural scientist known for his significant contributions to food production.

2. **First Contribution**: One of his major contributions is the introduction of short high-yielding varieties of wheat in India. This innovation played a crucial role in increasing wheat production and addressing food scarcity in the country.

3. **Second Contribution**: Another important contribution by Dr. M. S. Swaminathan is the development of short-duration high-yielding varieties of rice. This advancement helped improve rice production efficiency and contributed to food security.

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