grafted plants

The tomato plants are grafted onto a very prolific tomato rootstock which produces about five times the root system of normal tomatos. This allows the uptake of enormous amounts of nutrients and water that the normal rootstock cannot provide.

I am trying to graft my own this year, (just an experiment) but I am not prepared to pay what the normal suppliers are charging.
You can purchase the seeds for rootstock tomatos from Moles seeds. There are two variety's, I am trying one called Aegis.

Have a look on youtube. There are quite a few vids on tomato grafting.

Hope this helps.