Vladimir,
Thank you so much for the wealth of information and for your research!
Yes, I can open the PDF document, but I cannot read Czech, so thank you for translations and explanations! The documents mention 'Stupice' as a place of production, so I am assuming this is probably why the name 'Stupicke' was changed to 'Stupice'...
I understand that 'Původni šlechtitel' means 'original breeder'. So Stupicke was bred by Jaroslav Homola, who worked at 'Selecta', correct?
I could not find a mention of the original name in the PDF document, maybe I missed it.
I find it fascinating that Stupice was bred from Mikado. So Mikado must have been available in Czech seed banks? I wish I could get my hands on this historical variety!
So I understand that Stupické rané skleníkové and Stupické rané may be further selections from the original varieties, Stupicke sklenikove and Stupicke polni rane.
Tatiana