condition mean min max 12pM Fe,Midday 11.3544 11.3544 11.3544 12pM Fe,Midnight 15.08485 14.1444 16.0253 58pM Fe,Midday 11.1234 11.1234 11.1234 58pM Fe,Midnight 13.9444 0.0 20.0788 233pM Fe,Midnight 18.2501 17.2031 19.9508 1160pM Fe,Midday 8.760927142857144 6.37781 10.6141 1160pM Fe,Midnight 11.7266425 3.75031 22.8237 High carbon,Dark 19.579263333333333 1.92814 33.8715 High carbon,Light 13.53897 8.23957 25.4979 Low carbon,Dark 22.4042 22.4042 22.4042 Phloroglucinol 5.02621 2.05099 7.18321 Silicon starvation,12h 20.996 20.996 20.996