The splice graft is similar to the whip-and-tongue graft except the second tongue cut is not made.
A simple slanting cut of the same length is made in both the scion and rootstock.
It is a common graft used for vegetable crops that use robotic grafting of a scion on a disease resistant rootstock.
Accounting for differences in size
If the scion and rootstock are not the same size, then line up both along one side to maximize cambial contact.
Grafting vegetables on to disease resistant rootstocks can increase yield, especially in protected culture systems.
Making splice cut.
Lining up the partners
A clip unites the graft.
Grafting robots have been developed to perform splice grafts for vegetables like the melon scion on gourd rootstock combination pictured here.