condition mean min max 12pM Fe,Midday 51.7799 51.7799 51.7799 12pM Fe,Midnight 38.254400000000004 35.7446 40.7642 58pM Fe,Midday 82.6424 82.6424 82.6424 58pM Fe,Midnight 30.347557142857145 0.0 60.3025 233pM Fe,Midnight 15.304166666666667 11.6436 18.8989 1160pM Fe,Midday 21.38757142857143 18.0711 23.9747 1160pM Fe,Midnight 15.060481666666666 8.47848 24.5105 High carbon,Dark 16.90583133333333 4.3284 29.7178 High carbon,Light 22.48135 1.70936 42.3067 Low carbon,Dark 12.5817 12.5817 12.5817 Phloroglucinol 24.4141 17.2847 30.9006 Silicon starvation,12h 45.4308 45.4308 45.4308