The term depends on context
In conventional genetics, F1 refers to first-generation offspring of a cross. Breeder marketing may use more specific conventions. Read the accompanying lineage explanation before assuming products with the same label are equivalent.
Uniformity is a claim to evaluate
A breeding-generation label does not by itself establish measured uniformity, chemical composition, or outcomes in a particular environment. Look for information about the breeding program and supporting data when available.
Compare descriptions, not assumptions
If one catalog provides detailed parentage and another does not, record that difference transparently. Do not fill in the missing lineage with speculation.
Use responsible source checks
Confirm the current breeder description, the specific product name and the applicable legal rules. Treat older catalog snapshots as historical records, not live inventory statements.