condition mean min max 12pM Fe,Midday 30.3391 30.3391 30.3391 12pM Fe,Midnight 25.71905 22.5368 28.9013 58pM Fe,Midday 20.7733 20.7733 20.7733 58pM Fe,Midnight 16.57997142857143 0.0 20.4242 233pM Fe,Midnight 14.6106 13.8814 15.7797 1160pM Fe,Midday 16.900628571428573 13.5965 18.6023 1160pM Fe,Midnight 8.250691666666667 5.5171 11.2341 High carbon,Dark 16.311457333333333 5.72446 27.3989 High carbon,Light 15.15331 3.82736 22.4432 Low carbon,Dark 19.3678 19.3678 19.3678 Phloroglucinol 9.602493333333333 5.70862 14.2722 Silicon starvation,12h 20.55 20.55 20.55