Vitroplant interspecific hybrid. It has an excellent resistance to adverse pedoclimatic conditions. It has a medium vege- tative vigour. It could be used for intensification of cultiva- tion in high-density plantations. It has a good affinity with the species Actinida deliciosa and chinensis. It is the most suitable rootstock for this species. The Z1 is resistant to PSA. It is currently under experimentation for the evaluation of its resistance to “Kiwi Moria”, with good results.