The present invention is related to an agricultural shaped pole (1) whereto supporting threads (5) for plants or parts of fruit-bearing plants are fixed. In particular, the invention is related to an assembly for vine breeding comprising a plurality of shaped poles (1) whereto wires (5) for supporting vine parts are fixed. The form or the shape of the pole (1) allows the arrangement of the threads so as to ensure the best air and sun exposure to the vegetative part and to fruits without substantial contact between each other or with the parts of the plant or with parts of the assembly.