Poato seeds (not seed potatoes)

My Cara are producing seed pods after flowering, in the normal way. (I am removing these to encourage growth to go to the tubers).

My International Kidney (apart from producing excellent spuds) are developing things like seed pods on the haulms which then sprout and form into potatoes, but joined to the haulm, not on the end of a trailing root. Hope that the photo shows this.


You should be able to make out the fresh shoots appearing from some of the "seed pods".

I have never met this before. Advice, please!

 

Not seen it before, but the normal pattern of growth is for the plant to produce new tubers from underground leaf joints. This is one way of increasing the number of tubers produced by one plant. The stems are pegged down and covered with soil except for the very last few leaves. It then roots as it goes and those adventitious roots produce tubers. That way they get incredible weight of potatoes from one original tuber. I think this is what is happening to your plant. Bury the stems where the new growths are and see what happens.

 

I tend to agree. I presume that it is the same effect you would get from earthing up the plants. I shall certainly cover these and hope for a larger crop.

I am still confused by the fresh sprouting growth from these new tubers.

 

Yes I think the same as palustris.
Just as an experiment I have taken cuttings of potatos, you tend to get just the one tuber from the resulting plants.
Not sure but these could be good for seed tubers the following year as they have no root contamination from the parent plant.