condition mean min max 12pM Fe,Midday 25.4364 25.4364 25.4364 12pM Fe,Midnight 13.064599999999999 12.7366 13.3926 58pM Fe,Midday 13.4567 13.4567 13.4567 58pM Fe,Midnight 12.071785714285715 0.0 18.6456 233pM Fe,Midnight 14.494166666666667 13.4641 15.3508 1160pM Fe,Midday 13.224371428571429 10.7938 17.7334 1160pM Fe,Midnight 20.716758333333335 18.279 24.2883 High carbon,Dark 12.432776 9.37468 16.5066 High carbon,Light 9.584492307692308 1.32155 17.8449 Low carbon,Dark 7.21691 7.21691 7.21691 Phloroglucinol 19.61126666666667 16.9323 21.9144 Silicon starvation,12h 23.738 23.738 23.738