condition mean min max 12pM Fe,Midday 39.9019 39.9019 39.9019 12pM Fe,Midnight 33.8292 33.085 34.5734 58pM Fe,Midday 28.1502 28.1502 28.1502 58pM Fe,Midnight 24.726342857142857 0.0 36.2612 233pM Fe,Midnight 17.255633333333332 15.3758 18.6373 1160pM Fe,Midday 21.065728571428572 16.7774 25.8581 1160pM Fe,Midnight 11.810698333333333 9.18449 15.1155 High carbon,Dark 14.840992666666667 5.64909 36.3992 High carbon,Light 15.892859923076923 0.952329 35.1729 Low carbon,Dark 18.4003 18.4003 18.4003 Phloroglucinol 16.2081 14.1474 19.1031 Silicon starvation,12h 24.8505 24.8505 24.8505