condition mean min max 12pM Fe,Midday 23.1606 23.1606 23.1606 12pM Fe,Midnight 23.593899999999998 22.4254 24.7624 58pM Fe,Midday 26.3976 26.3976 26.3976 58pM Fe,Midnight 21.619557142857143 0.0 30.3623 233pM Fe,Midnight 22.583166666666667 22.2993 22.8745 1160pM Fe,Midday 30.886599999999998 22.0014 35.7001 1160pM Fe,Midnight 10.202458333333334 7.09004 16.3226 High carbon,Dark 37.18806 1.68484 72.6369 High carbon,Light 25.634505384615384 6.21103 71.0281 Low carbon,Dark 46.729 46.729 46.729 Phloroglucinol 5.749583333333334 3.6382 7.50386 Silicon starvation,12h 209.65 209.65 209.65