During the day, increased heat and more open stomata lead to greater water loss and a stronger transpiration pull, causing more tension in the xylem, contributing to a smaller trunk diameter.
In the day: - more stomata open - more heat from Sun - more water loss by evaporation - stronger transpiration pull due to cohesion - more tension in xylem due to adhesion</div>
| Front | Why is trunk diameter smaller in the day and larger at night? |
|---|---|
| Back | In the day: - more stomata open - more heat from Sun - more water loss by evaporation - stronger transpiration pull due to cohesion - more tension in xylem due to adhesion |
Tags: plant_transport
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