condition mean min max 12pM Fe,Midday 50.3725 50.3725 50.3725 12pM Fe,Midnight 51.142250000000004 47.6942 54.5903 58pM Fe,Midday 42.3544 42.3544 42.3544 58pM Fe,Midnight 33.251042857142856 0.0 39.8455 233pM Fe,Midnight 21.228166666666667 19.9886 21.8979 1160pM Fe,Midday 23.2128 18.5908 25.9768 1160pM Fe,Midnight 18.925383333333333 15.2805 23.4173 High carbon,Dark 29.658336666666667 1.7212 65.817 High carbon,Light 15.006681538461539 4.4145 33.623 Low carbon,Dark 29.0492 29.0492 29.0492 Phloroglucinol 12.701883333333333 9.47465 15.4805 Silicon starvation,12h 0.522826 0.522826 0.522826