True potato seed - buy, sell and trade

This thread is for buying, selling, trading, or reviewing suppliers. TPS is hard to find.

related: Becoming resilient with potatoes

I would like to buy/trade for TPS.

We saved seed from our potatoes this year.  Two separate varieties of real old school all blue/purple potatoes.  We have many thousands of seeds that we processed with the mold then washing then drying treatment.  Happy to do some trading...

What do you have on your want list for trades?
Or do you have a cash price in mind?

Hello. I'm interested to purchase so,e  as well, if you can send the seed overseas in Italy.
I don't know what "old school" all blue/purple potatoes are, in comparison with the variety that I know here.

But I can tell you what  we are trying to do here :
There is a this very old PARLI potatoes, that grow very very well in high mountain  but nothing compared to the yeld you got from commercial potatoes at lower altitude and a very antocianine rich potato called Negresse, that s red and white, but become violet when cooked that grow at lower altitude.
In theory they flower at the same time, so we were hopying that some crossing will happen.
In reality this year, the flowering time was separated  thanks to increased temperature so we ended up with nothing for sure, and with very few seed as well.  But we will know next year...

If you're planning on doing some breeding research, you might consider getting TPS (or in-vitro clones) from GRIN (they're free, but you'll need to make an account, and it's gotta be for breeding or research - though it can be at citizen level). I've gotten quite a few TPS accessions, and several clones, to breed potatoes for a tropical environment. They have diploids, tetraploids, modern and Andean types, wild species, hybrids, low and high glykoalkaloids, russet types, pigmented types and loads of others, with many pest and disease resistances in the different stocks (I focused on Blight and Scab).

After a couple of failed attempts, I'm now having success with several fertile-flowered clonal accessions, and I have more than enough TPS to build up a very diverse founding stock for the project.

Link to GRIN: https://npgsweb.ars-grin.gov/gringlobal/search.aspx?

I also got some TPS from Cultivariable that I'm planning to incorporate into the project. They're info has been indispensable, and though untested in my neck of the woods, they seem to have pretty good stock. Link here:

https://www.cultivariable.com