Fig. 7.

Relationship between rosette fresh weight (FW) and root hydraulic conductance (K _r) (a) and rosette osmotic potential (± SEM) from elongating leaves (b) in a collection of nine Casparian strips (CS) and/or suberin Arabidopsis mutants and Col‐0 grown in soil for 5 wk in a Phenopsis phenotyping platform under controlled environmental conditions (n = 7). Pearson correlation coefficients are 0.69 (P‐value < 0.05) and 0.84 (P‐value < 0.01), for FW vs K _r and FW vs shoot osmotic potential, respectively. (c) Rosette osmotic potential vs potassium (K) content for mutants grown under control conditions, relatively to Col‐0.