An ontology for describing the phenology of individual plants and populations of plants, and for integrating plant phenological data across sources and scales.
From Ellen:
Since the PO definitions for bud swell stage and bud burst stage are so vague, it would be nice to have some notes clarifying the difference between swelling and breaking leaf buds. "Breaking leaf bud" already has an adequate comment. Perhaps we should add a comment for "swelling leaf bud" that says something like: This stage ends with leaf bud break and the presence of an observable unfolding true leaf.
From Ellen: Since the PO definitions for bud swell stage and bud burst stage are so vague, it would be nice to have some notes clarifying the difference between swelling and breaking leaf buds. "Breaking leaf bud" already has an adequate comment. Perhaps we should add a comment for "swelling leaf bud" that says something like: This stage ends with leaf bud break and the presence of an observable unfolding true leaf.