Hi Syanide - Sorry to confuse you with my bagging comment in my earlier posting. I grow numerous varieties of tomatoes in close proximity to each other and so I know the tomatoes I want to save seed from stay pure, I bag the flower trusses prior to the flowers opening. Once the bag goes on, I mark the flower truss with a ribbon so I know which tomatoes to save for seed. Here is a photo of a truss with a bag on it.

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