Tetra®

(P. domestica)

Clone of seedling of the cv Regina Claudia deriving from open pollination, obtained by the ISF in Rome.
It is suitable for many kinds of soils and heavy soils. Anchorage is excellent, suckering tendency is almost absent. Less tree-control-vigor than Penta for Peach, and similar to Myrobalan 29C for apricot and plum. It promotes a anticipated ripening a fruit set. Yield efficiency is good. It is futher resistant to the root-knot nematode and Armillaria mellea and Phytophthora Cactorum.