Here in New Zealand it's Summer and I've just lifted my first heirloom potatoes. Unfortunately I did not earth them up as much as I should have and a few of them are greened. We know not to eat these, however...
1. Can greened potatoes be used as seed potatoes for the next crop, once they've been sprouted?
2. Does the size of the seed potato dictate the size of potatoes from the resulting plant, i.e. if I plant a tiny potato so small it is not worth eating, will I get big potatoes from the plant?
That second question might seem a bit odd, but I know with Yams [Oxalis Tuberosa], the size of the seed directly influences the size of the resulting crop.
Thank you, Rob.