Question

Rate of transpiration can be measured by

Answer 1

Rate of transpiration can be measured by Potometer. This apparatus works on principle - rate of water absorption is equal to the rate of transpiration.

Answer 2

Rate of transpiration can be measured by a Potometer.

There are number of methods for measuring

There are number of methods for measuring transpiration:

• Weighing method
• Potometer method

Weighing method:

A small lightweight potted plant can be weighed before and after the end of a certain period of time. For it the soil surface and the pond should be fully covered to prevent evaporation from the surface is other than the plant. The loss of weight by the plant during that time is due to the loss of water by transpiration.

Potometer method:

Potometer is a device that measures the rate of water intake by a plant, and this water intake is almost equal to the water loss through transpiration.