Growth parameters of plants grown at high N (▪,
▴, ▾, •) and low N (□, ▵, ▿, ○) in lines 1 (▪, □), 2
(▴, ▵), 3 (▾, ▿), and 4 (•, ○). Whole-plant dry weight (A
and B), shoot-to-root ratio (C and D), SLA (leaf area per unit leaf dry
weight; E and F), and LAR (leaf area per whole-plant dry weight; G and
H). Error bars represent the maximum se of all of the lines
except for whole-plant dry weight, SLA, and LAR at low N, for which the
se of line 1 is also shown.