condition mean min max 12pM Fe,Midday 26.1513 26.1513 26.1513 12pM Fe,Midnight 20.289749999999998 17.6677 22.9118 58pM Fe,Midday 36.8211 36.8211 36.8211 58pM Fe,Midnight 15.1922 0.0 20.0645 233pM Fe,Midnight 13.444066666666666 13.0534 13.6709 1160pM Fe,Midday 19.199957142857144 16.645 22.4693 1160pM Fe,Midnight 10.857581666666666 7.2351 13.8536 High carbon,Dark 12.371402866666667 0.907623 33.464 High carbon,Light 8.564196153846154 2.45369 24.7227 Low carbon,Dark 14.8887 14.8887 14.8887 Phloroglucinol 4.012796666666667 3.2584 5.07196 Silicon starvation,12h 7.71116 7.71116 7.71116