Spraying the plant surfaces with silicon emulsion and phenyl mercuric acetate results in

Options

A. increases transpiration
B. reduces transpiration
C. increases rate of photosynthesis
D. causes guttation

Answer

B

Explanation

Phenyl mercuric acetate is an antitranspirant. It covers the stomata asa film and resist the diffusion of water therefore, reduces the rate of transpiration. Other antitranspirants include Abscisic Acid (ABA) and aspirin.