Tree tomato (Solanum betaceum) is an emerging fruit crop for which no phenological scales exist.
A basic two-digit and an extended three-digit BBCH phenological scale are developed.
The tree tomato BBCH scales contain eight principal growth stages.
A detailed description of phenological stages of tree tomato is given together with illustrations.
The tree tomato BBCH scales have been validated in a collection of 24 accessions.