Path of Translocation

It is now firmly established that phloem, and not xylem, is the tissue responsible for translocating dissolved organic solutes throughout the plant. This was demonstrated cleanly through the ringing or girdling experiment, which strips away the phloem (along with the bark and cortex) from a section of a woody stem while leaving the underlying xylem completely intact, and then observes exactly what happens to the flow of food material above and below the girdled region - a …