Pinus halepensis (Aleppo Pine) is a species of tree in the family pines. They are native to northern hemisphere. They have dry fruit. Individuals can grow to 20 m.
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