Figure 3

Phenotypic relationship between root dry weight and root parameters across different concentrations of phosphorus under hydroponics at 14 (red = ◊) and 28 (blue = □) days after sowing. ⊠ − 0.5 ppm, ♦ − 1 ppm, ▲ − 2 ppm, ● − 4 ppm,  − 6 ppm, ■ − 8 ppm, and  − 10 ppm.