How to propagate Kiwi "Issai"

Moin everyone,

I have two sef-fertile Kiwi plants in my garden. One "Issai" and one "Jenny". Both planted at the same time and adjacent to each other. But since the latter one never produces any fruit (only lots of green) while my "Issai" is full to the brim with delicious kiwi-berries, I decided to root it out and plant another "Issai" there.

Does anyone have experience with the fastest way to create a new sapling from a fully grown Kiwi-plant?

 

No but I would try layering or semi ripe cuttings late summer.