Agronomy Ontology Maize Ontology Source
http://purl.obolibrary.org/obo/UO_0000033 http://www.cropontology.org/rdf/CO_322:0000352 LOOM
http://purl.obolibrary.org/obo/PATO_0001309 http://www.cropontology.org/rdf/Duration LOOM
http://purl.obolibrary.org/obo/PATO_0000165 http://www.cropontology.org/rdf/Time LOOM