condition mean min max 12pM Fe,Midday 20.3382 20.3382 20.3382 12pM Fe,Midnight 18.059350000000002 17.438 18.6807 58pM Fe,Midday 16.0914 16.0914 16.0914 58pM Fe,Midnight 19.9 17.5549 26.3866 233pM Fe,Midnight 10.32809 9.54077 11.1351 1160pM Fe,Midday 9.668758571428572 8.31337 10.5068 1160pM Fe,Midnight 9.403584166666667 7.73782 11.67 High carbon,Dark 12.601536666666666 3.52934 20.1406 High carbon,Light 7.89197 1.87424 17.1565 Low carbon,Dark 10.6142 10.6142 10.6142 Phloroglucinol 7.77816 5.16289 10.5693 Silicon starvation,12h 15.8373 15.8373 15.8373