Figure 5.

(a) Lateral root formation and (b) shoot size for Ws seedlings grown for 14 days on control media supplemented with varying amounts of nitrate salts and mannitol such that osmotic potential is constant. Bars represent average of 38–56 individuals for all data points. For TOT, difference between +60 mM mannitol and all other conditions is significant at p ≪ 0.01 using Student's paired t-test. For shoot size, only the difference between +40 mM mannitol and +20 mM mannitol is statistically significant at p < 0.05 using Student's paired t-test. Standard error is shown.