Question @Coir - determinate an indeterminate cultivars of tomato ,
Will a indeterminate rootstock with a determinate scion continue to produce tom's any longer , longer life span ? Do you have any idea.?
From what I have learned so far, a determinate scion will remain determinate and in fact, might not graft to an indeterminate scion. Some testing would be needed but again, it really doesn't make sense to do that. Grafting increases disease resistance which is more important in long cultivation cycles like we have in the greenhouse(10-11 months). Determinate varieties in the greenhouse just don't make sense for commercial production.
Nice produce! Is the Vancouver Farmer Market crap going to have much of a impact on your vegetable biz? Maybe a row of Vancouver Skunk bud in that green house would boost profits...