3 inflorescence detectable stage
http://purl.obolibrary.org/obo/PO_0007047
Term info
definition
A reproductive growth stage during which an inflorescence is detectable. This includes the stage when an inflorescence starts to develop (and is detectable only by assay or with a microscope), to the stage where it is visible to the naked eye. This includes the booting stage in the grasses (Poaceae). There is no one-to-one correspondence between some of the phases of inflorescence formation in members of Poaceae (e.g., booting) with that of other families.
has exact synonym
BBCH principal growth stage 4, BBCH principal growth stage 5