condition mean min max 12pM Fe,Midday 39.2063 39.2063 39.2063 12pM Fe,Midnight 44.20805 42.0578 46.3583 58pM Fe,Midday 30.4145 30.4145 30.4145 58pM Fe,Midnight 37.608514285714286 0.0 52.4668 233pM Fe,Midnight 55.09916666666667 53.9566 56.376 1160pM Fe,Midday 23.69252857142857 20.7227 29.84 1160pM Fe,Midnight 68.61375 60.0801 81.4516 High carbon,Dark 49.57427333333333 22.1318 63.6701 High carbon,Light 26.67989846153846 7.76012 40.4704 Low carbon,Dark 33.1634 33.1634 33.1634 Phloroglucinol 35.722233333333335 28.7184 45.7385 Silicon starvation,12h 64.1712 64.1712 64.1712