condition mean min max 12pM Fe,Midday 68.5214 68.5214 68.5214 12pM Fe,Midnight 53.47205 52.4667 54.4774 58pM Fe,Midday 34.9287 34.9287 34.9287 58pM Fe,Midnight 35.284 0.0 45.4196 233pM Fe,Midnight 19.542466666666666 17.1344 21.0842 1160pM Fe,Midday 29.05282857142857 25.8429 32.2338 1160pM Fe,Midnight 20.744791666666668 14.9893 28.143 High carbon,Dark 44.41360666666667 19.9852 88.5442 High carbon,Light 30.06196153846154 9.9387 61.6737 Low carbon,Dark 38.7286 38.7286 38.7286 Phloroglucinol 72.0549 44.8041 88.8004 Silicon starvation,12h 86.4484 86.4484 86.4484