The Phenomenon of elongation of stem in the plants with rosette habit is know as

Options

A. Rosetting
B. Bolting
C. Phase of elongation
D. 1 and 3

Answer

To solve the question regarding the phenomenon of elongation of the stem in plants with a rosette habit, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Rosette Habit**:
- Plants with a rosette habit have leaves that grow close to the ground, forming a circular arrangement. This growth pattern is common in certain species that need to survive in specific environmental conditions.

**Hint**: Recall what a rosette habit looks like and how it affects plant growth.

2. **Identifying the Phenomenon**:
- The elongation of the stem in these plants is a response to environmental cues, particularly when the plant is preparing to flower. This elongation allows the flowers to rise above the leaves for better pollination.

**Hint**: Think about why a plant would need to elongate its stem in relation to flowering.

3. **Defining Bolting**:
- The specific term used for this phenomenon is "bolting." Bolting refers to the rapid elongation of the stem, which occurs in certain plants as they transition from vegetative growth to flowering.

**Hint**: Consider the agricultural context where this term is commonly used.

4. **Examples of Plants that Bolt**:
- Common examples of plants that exhibit bolting include basil, beetroot, and onion. These plants tend to bolt when they sense conditions that favor reproduction, such as changes in temperature or day length.

**Hint**: Recall some common crops that might exhibit this behavior.

5. **Conclusion**:
- Based on the understanding of the phenomenon and the examples provided, the correct answer to the question is "bolting."

**Hint**: Review the options given in the question to ensure the answer aligns with the definition of bolting.

### Final Answer:
The phenomenon of elongation of stem in plants with a rosette habit is known as **bolting**.