Fig. 6
Images showing the effects of a range of KNO3 and NH4Cl concentrations on Arabidopsis root and shoot development. The images, captured from above and the side at the 5 d.a.t. time point, are a representative set from the experiment described in Fig. 5. The left-hand set of images show the NO3 − treatments and the right-hand set the NH4 + treatments: a, b control; c, d 0.5 mM; e, f 2 mM; g, h 11 mM; i, j 44 mM