Translocation of carbohydrate nutrient usually occurs in the form of

Translocation of carbohydrate nutrients usually occurs in the form of Sucrose.
Translocation of carbohydrates and nutrients usually occurs in the form of sucrose through a sieve tube of phloem. Sucrose is transported from the source in the roots to the sinks in the leaves so they can restart growth. As the movement of sucrose can be in more than one direction, this movement is described as bidirectional.
It allows for efficient energy transfer and increased energy storage.