Transpiration is high in

Options

A. Rainy season/high humidity
B. Winter
C. High temprature
D. Low wind valocity

Answer

**Step-by-Step Solution:**

1. **Understanding Transpiration**: Transpiration is the process by which plants lose water in the form of vapor. This primarily occurs through small openings called stomata, which are surrounded by guard cells that regulate their opening and closing.

2. **Factors Affecting Transpiration**: The rate of transpiration is influenced by several environmental factors:
- **Temperature**: Higher temperatures generally increase the rate of transpiration because they cause stomata to open.
- **Humidity**: High humidity levels decrease the rate of transpiration. When the air is already saturated with moisture, the gradient for water vapor to leave the plant is reduced.
- **Wind Velocity**: Increased wind speed can enhance transpiration by removing the water vapor that accumulates around the stomata, thus maintaining a steep concentration gradient.
- **Light**: Stomata typically open during the day when there is light, which also contributes to transpiration.

3. **Evaluating the Given Conditions**:
- **Rainy Season and High Humidity**: This condition would lead to lower transpiration rates because high humidity reduces the water vapor gradient.
- **Winter**: In winter, temperatures are generally lower, which would also result in reduced transpiration.
- **High Temperature**: This condition promotes higher transpiration rates as warmer temperatures encourage stomatal opening.
- **Low Wind Velocity**: Low wind speeds would not enhance transpiration; in fact, they could lead to reduced rates because the water vapor around the stomata would not be removed efficiently.

4. **Conclusion**: Among the given options, the condition that would lead to high transpiration is **high temperature**.

**Final Answer**: Transpiration is high in high temperature.

---