cotyledon emergence stage
http://purl.obolibrary.org/obo/PO_0007049
Term info
definition
A seedling development stage (PO:0007131) during which the cotyledon (PO:0020030) emerges from the seed coat (PO:0009088). This term is used only for seed plants. The actual point of emergence from the seed coat (PO:0009088) may not be observed if the seed is underneath a growth medium, especially in plants with hypogeal germination. In a fruit (PO:0009001) with a persistent pericarp (PO:0009084), emergence from the seed coat may not be observed.
has exact synonym
Boyes Arabidopsis Growth Stage 1