The semi dwarf varieties rice varieties are:

Options

A. Sonalika and Kalyan Sona
B. Jaya and Ratna
C. Pusa sawani and Pusa sem 2
D. Pusa Komal and Pusa swarnim

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for semi-dwarf varieties of rice. Semi-dwarf varieties are known for their shorter stature and higher yield potential compared to traditional varieties.

2. **Identifying the Options**: The options provided in the question include:
- Option 1: Sonalika and Kalyan Sona
- Option 2: Jaya and Ratna
- Option 3: Pusa Swani and Pusa Sem 2
- Option 4: Pusa Komal and Pusa Swarnim

3. **Analyzing Each Option**:
- **Option 1**: Sonalika and Kalyan Sona are actually semi-dwarf wheat varieties, not rice. Therefore, this option is incorrect.
- **Option 2**: Jaya and Ratna are recognized as semi-dwarf rice varieties. This option is correct.
- **Option 3**: Pusa Swani is an okra variety and Pusa Sem 2 is a flat bean variety. Neither of these are rice varieties, making this option incorrect.
- **Option 4**: Pusa Komal is a cowpea variety and Pusa Swarnim is a Brassica variety. Thus, this option is also incorrect.

4. **Conclusion**: The only correct option that lists semi-dwarf rice varieties is Option 2: Jaya and Ratna.

**Final Answer**: The semi-dwarf varieties of rice are Jaya and Ratna.

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