Translocation of soluble products of photosynthesis occurs in the part of the vascular tissue known as the phloem.
Transport system in a plant is concerned with the movement of materials from source to sinks. According to Lacher .W 1985, a source is a region of a plant, which is manufactures sugars during photosynthesis and supplies materials of any kind to the transport system (e.g leaves) and a sink as a region where the sugars and minerals are being removed or lost from the system to be used up or stored (for example the root and production of fruit). Transport of soluble products of photosynthesis is called translocation. Translocation of soluble products of photosynthesis occurs in the part of the vascular tissue known as the phloem. The phloem is the principle food conducting tissue associated with xylem in the vascular system. The basic components of phloem are sieve elements, companion cells and phloem parenchyma and phloem fibres. It is placed outside the cambium of the vascular bundle ().