In the years 2014-2015, I grew all the Czech OP whose seeds could be secured in some way. I added a few more in the following years.
I'm slowly finishing growing tomatoes and so I would like to close this thread somehow.
Vladimír
PS.:Here is a small overview of those Czech tomatoes





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@MrBig46 if ever you would like a thread closed and then locked so that nobody can post, just ask a mod and they can do this for you.

Beautiful tomatoes and an excellent project. Congratulations on completing that and thank you for sharing!
I really enjoyed Datlo and will grow again. I made a cross with it, which needs to be grown out, now at F2.
Also singing the praise of Moravsky Div and Stupice, which are classic favorites with wonderful traits including cold tolerance and some heat tolerance too. Fantastic parents for cold tolerant and early tomatoes, and some favorites of mine. The vigor of Stupice seems to be dominant and all the offspring are very big productive plants.
Cheers.