condition mean min max 12pM Fe,Midday 43.9743 43.9743 43.9743 12pM Fe,Midnight 31.012349999999998 30.9794 31.0453 58pM Fe,Midday 41.8393 41.8393 41.8393 58pM Fe,Midnight 19.157657142857143 0.0 27.3039 233pM Fe,Midnight 13.7827 11.9757 16.1212 1160pM Fe,Midday 26.389942857142856 23.7989 28.3482 1160pM Fe,Midnight 4.965715 1.99803 10.8553 High carbon,Dark 17.334351333333334 6.95922 29.9424 High carbon,Light 17.29576923076923 10.2481 28.9365 Low carbon,Dark 16.9037 16.9037 16.9037 Phloroglucinol 26.313366666666667 21.037 36.0805 Silicon starvation,12h 18.5632 18.5632 18.5632