I average 30-35 tomatoes off of each of my ‘Dora’ tomato plants every year...’Dora’ is an heirloom that bears tomatoes the size of a baseball or just a bit bigger. Production is just fine. :-)
Good to know. Have you saved the seed year after year? Looks like it has good disease resistance, too. Win/Win! :)
https://knownyouseed.com/product/dora/