Shoot and root characteristics of the seedlings.

iafr = including additional fine roots. PC: partitioning coefficient. RPC: root partitioning coefficient. Unless mentioned, RPC is computed from the volume and not the dry-weight. SRL: specific root length, i.e. root length/root volume. Columns 5 to 7: means of each treatment and level of significance of the corresponding factor or interaction: *, <5%; **, <1%; ***, <0.1%; ****, <0.01%.