Question

Guttation occurs when

• A. Wind velocity is high
• B. Humidity increases
• C. Root pressure is less and transpiration rate is more.
• D. Root pressure is more and transpiration rate is less.

Answer 1

Answer: (D)

Root pressure is more and transpiration rate is less.

Guttation is the process of secretion of the droplet of water from the pores of the plant. It occurs when the root pressure goes high and so the suction force gets increased. Also, when the rate of transpiration, that is the rate of evaporation of water from the leaves goes low, the guttation takes place.

So, the correct answer is 'Root pressure is more and the transpiration rate is less'.