Varieties suitable for winter greenhouse?

[robinatsia]

Among other things, I'm planning to grow a variety or two a year round in a heated greenhouse (winter temperatures would be around +15 C / +60 F). Obviously, determinate varieties would not and indeterminate varieties would fit (as well as maybe the dwarf ones).'Slivka Sprut F1' (of Russian origin) should be one of those. I have read that 'Sun Gold F1' also should fit.
Has anyone tried something like that? With which varieties then?
Harri.