Question

why the rate of transpiration increases with an increase in root-shoot ratio??

Answer 1

Hello,
The rate of transpiration increases with an increase in root-shoot ratio because of greater availability of water due to more extensive root system.

Hope it helps!!!

Answer 2

Answer:

Root/Shoot Ratio: A low root/shoot ratio decreases the rate of transpiration while a high ratio increases the rate of transpiration. The latter is due to the fact that an extensive root system is more efficient in water uptake from soil. Increased availability of water also increases transpiration.