Assertion: vascular tissue | /r/HasProperty | specified
Facets:
value: during early embryogenesis
type: TEMPORAL
Source sentences:
text: During early embryogenesis, vascular tissues are first specified from a limited number of provascular initial cells, four in the model plant Arabidopsis thaliana (Scheres et al. 1994).
text: Nevertheless, as vascular tissues are specified and first patterned before germination, these developmental aspects are best studied during embryogenesis.