Assertion: mature nodule | /r/HasAspect | several developmental zones
Facets:
Source sentences:
text: Mature indeterminate nodules have several developmental zones ( Vasse et al ., 1990 ), namely an apical meristem (zone I), a prefixation zone (zone II), an interzone (zone II–III), a nitrogen fixation zone (zone III) and a senescence zone (zone IV).