Fig. 5

Representative quantitative phosphorus (P) distribution maps in root cross sections of two Brassica oleracea accessions (C6 and F103; a) grown in a high throughput root phenotyping system for two weeks and supplied with solutions containing 0.025 mM P (Low P; LP) and 0.25 mM P (High P; LP). Values in the top right corners of P distribution maps indicate mean diameter of root cross sections (n = 3–8). Average P concentration in dry matter of whole root cross sections and endodermis (n = 3–7; b). Reference line in panel b indicates average whole-cross section concentration (n = 18). Shown are means ± standard errors