Assertion: nodule | /r/HasProperty | collected at 10 field sties
Facets:
value: in 1993
type: TEMPORAL
Source sentences:
text: B. japonicum insolates from 450 nodules collected at 10 field sties in 1993 were used to form nodules on soybean plants grown in sand culture in a greenhouse in order to examine bacterial phenotype under controlled conditions.