In G. angustifolia, the wall thickness of the culm decreases faster in the basal segment, which may explain why anatomical changes between one internode and the next are more pronounced in this segment than in the middle or apical segments
In G. angustifolia, the wall thickness of theculm decreases faster in the basal segment,which may explain why anatomicalchanges between one internodeand the next are morepronounced in this segment thanin the middle or apical segments