condition mean min max 12pM Fe,Midday 23.886 23.886 23.886 12pM Fe,Midnight 19.79875 19.0668 20.5307 58pM Fe,Midday 16.6799 16.6799 16.6799 58pM Fe,Midnight 32.94678571428572 16.8908 45.8982 233pM Fe,Midnight 25.101466666666667 24.3621 25.7306 1160pM Fe,Midday 18.711442857142856 14.0854 27.3902 1160pM Fe,Midnight 13.674981666666667 3.05861 33.5923 High carbon,Dark 15.153509333333334 5.11592 23.3202 High carbon,Light 15.11633076923077 3.80055 57.113 Low carbon,Dark 8.81181 8.81181 8.81181 Phloroglucinol 1.9054666666666666 1.40744 2.36722 Silicon starvation,12h 22.2589 22.2589 22.2589