Question

Guttation suggests that

• A. plant is transpiring rapidly
• B. there is water logging around roots
• C. rate of absorption is greater than rate of transpiration
• D. there is absorption lag in plants

Answer 1

The correct option is C rate of absorption is greater than rate of transpiration

Guttation is exudation or loss of water and minerals (xylem sap) through the pores found on the terminal ending of the veins known as hydathodes, when moisture in the soil is high.

Hydathodes are present at the margins and apices of leaves. Guttation is usually observed in herbaceous plants like grasses during night and early morning when evaporation is low (rate of transpiration is less). Hence, guttation suggests that rate of absorption is greater than the rate of transpiration.