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. 2021 Apr 27;11:9012. doi: 10.1038/s41598-021-88588-8

Figure 6.

Figure 6

Grains biomass (A) and grain-specific nitrogen efficiency (EN,g) (B) as functions of the shoot magnesium (Mg, closed symbols) or phosphorus (P, open symbols) concentrations for nine wheat varieties field-grown in Sweden during two years (2018, 2019). * indicates that Mg or P concentrations were based on data from tillering (BBCH29) and flowering (BBCH65)35. Regressions: y = − 0.637x2 + 2.617x − 1.55, N = 18, R2 = 0.80, P < 0.001 (A, solid line for Mg); y = − 0.528x + 1.834, N = 18, R2 = 0.34, P = 0.011 (A, broken line for P); y = − 84.08x2 + 329.08x − 233.51, N = 18, R2 = 0.79, P < 0.001 (B, solid line for Mg); y = − 86.41x + 218.03, N = 18, R2 = 0.76, P < 0.001 (B, broken line for P). Dots represent means from 4 replicates.