Definition: Bud sources other than epicormic buds, apex, root crown, lignotuber, burl, rhizome, roots or storage organs, including those not clearly specified (e.g., stump).
Definition: A multi-tissue plant structure (PO:0025496) that develops from a gynoecium (PO:0009062) and may have as parts one or more seeds (PO:0009010)
Definition: The quotient of the dry weight of the shoots produced during a given growth period divided by the dry weight of the roots esp. for crop plants.
Comment: Replace with http://purl.obolibrary.org/obo/TO_0000278