condition mean min max 12pM Fe,Midday 47.6045 47.6045 47.6045 12pM Fe,Midnight 39.397800000000004 38.8376 39.958 58pM Fe,Midday 29.3734 29.3734 29.3734 58pM Fe,Midnight 34.344457142857145 20.5741 50.2159 233pM Fe,Midnight 24.936333333333334 22.9424 27.3593 1160pM Fe,Midday 27.15272857142857 24.0598 30.7377 1160pM Fe,Midnight 100.15970833333333 13.5185 149.693 High carbon,Dark 25.71712 12.7616 40.0052 High carbon,Light 29.668376923076924 12.4742 49.2573 Low carbon,Dark 16.0679 16.0679 16.0679 Phloroglucinol 69.71746666666667 49.2154 96.529 Silicon starvation,12h 63.4137 63.4137 63.4137