condition mean min max 12pM Fe,Midday 52.7624 52.7624 52.7624 12pM Fe,Midnight 17.8584 17.7959 17.9209 58pM Fe,Midday 70.0299 70.0299 70.0299 58pM Fe,Midnight 16.861942857142857 0.0 21.6183 233pM Fe,Midnight 60.5991 54.8067 67.2675 1160pM Fe,Midday 35.277342857142855 27.9936 46.5045 1160pM Fe,Midnight 61.330675 21.8155 118.757 High carbon,Dark 191.76171333333335 67.3086 371.368 High carbon,Light 158.55903076923076 6.7608 355.403 Low carbon,Dark 86.8955 86.8955 86.8955 Phloroglucinol 24.55981 8.79013 35.743 Silicon starvation,12h 89.8576 89.8576 89.8576