Which root will form a new plant

Options

A. Populus
B. Dahlia
C. Azadirachta
D. Both A and B.

Answer

To determine which root will form a new plant, we need to analyze the options provided:

1. **Understanding the Types of Roots**:
- **Populus**: This plant has long roots that contain apical meristematic tissues at their tips. These tissues have the ability to divide actively, allowing the plant to regenerate and form new plants under favorable conditions.
- **Dahlia**: This plant has tuberous roots, which also contain meristematic tissues. Similar to Populus, these tissues can divide and give rise to new plants.
- **Azadirachta indica (Neem)**: Although this tree can be propagated from seeds and root cuttings, it is not primarily known for forming new plants from its roots in the same way as the previous two.

2. **Evaluating the Options**:
- **Option A (Populus)**: Yes, it can form new plants from its roots.
- **Option B (Dahlia)**: Yes, it can also form new plants from its tuberous roots.
- **Option C (Azadirachta indica)**: While it can grow from seeds and root cuttings, it is not primarily known for root propagation.
- **Option D (Both A and B)**: This option includes both Populus and Dahlia, which can both form new plants from their roots.

3. **Conclusion**:
Based on the analysis, the roots of both Populus and Dahlia can form new plants. Therefore, the correct answer is **Option D: Both A and B**.