According to all Munch's pressure-flow hypothesis, which of the following given conditions would increase the rate of translocation.

Options

A. A decrease in the photosynthesis
B. An increase in the sucrose production at the source
C. A decrease in phloem unloading at the sink
D. An increase in the humidity in the outside air

Answer

B

Explanation

A high concentration of organic substances, particularly sugar, inside cells of the phloem at a source, such as a leaf, creates a diffusion gradient.