Posted: 15/02/2015 at 19:27
Sorry, I don't. But I live in France and the seed potatoes here are much smaller than the ones I've seen in England. I seem to get good crops though. In England they seem to be chicken egg size, here they are smaller than bantams eggs.
But I was interested to know so I had a look on Google. T & M say
Seed potatoes are normally about the size of a chicken’s egg, but will often vary in size. Don’t be concerned if you receive different sized seed potatoes - they will all grow equally well.
In fact, during the 2nd World War it was common practice to cut larger seed potatoes in half or even smaller divisions to make the seed potatoes go further. The cuts should be left to dry out for 3 or 4 days before planting