What happens to the growth of roots during water logging conditions?

Options

A. Growth is accelerated
B. Growth is inhibited
C. Growth remains constant
D. First growth is accelerated and then stops

Answer

**Step-by-Step Solution:**

1. **Understanding Water Logging**: Water logging occurs when the soil becomes saturated with water, leading to a lack of air spaces in the soil. This condition is characterized by excessive moisture that fills the soil pores.

2. **Impact on Oxygen Availability**: In waterlogged conditions, the availability of oxygen in the soil decreases significantly. Roots require oxygen for respiration, which is essential for their growth and development.

3. **Effects on Root Growth**: Due to the lack of oxygen, the growth of roots is adversely affected. Roots may not be able to respire effectively, leading to a decline in their growth rate.

4. **Evaluating the Options**:
- **Growth is accelerated**: This is incorrect because the lack of oxygen does not support growth.
- **Growth is inhibited**: This is correct as the roots cannot grow properly due to insufficient oxygen.
- **Growth remains constant**: This is incorrect because roots do not maintain their growth under such conditions.
- **First growth is accelerated and then stops**: This is also incorrect as there is no initial acceleration in growth.

5. **Conclusion**: The correct answer is that the growth of roots is inhibited during water logging conditions due to the lack of oxygen.