Which one of the following will not directly affect transpiration?

Options

A. Temperature
B. Light
C. Wind speed
D. Chlorophyll content of leaves

Explanation

**Step-by-Step Solution:**

1. **Understanding Transpiration**: Transpiration is the process through which plants lose water vapor from their aerial parts, primarily through small openings called stomata. This process is crucial for maintaining water and nutrient flow within the plant.

2. **Factors Affecting Transpiration**: Several environmental factors can directly influence the rate of transpiration:
- **Temperature**: Higher temperatures increase the rate of evaporation of water from the plant surfaces, thus increasing transpiration.
- **Light Intensity**: Increased light intensity enhances photosynthesis, which can lead to more stomata opening, thereby increasing transpiration.
- **Wind Speed**: Wind can remove the water vapor that accumulates around the leaf surface, promoting more evaporation and thus increasing transpiration.
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