condition mean min max 12pM Fe,Midday 22.7149 22.7149 22.7149 12pM Fe,Midnight 20.88745 20.1628 21.6121 58pM Fe,Midday 21.2396 21.2396 21.2396 58pM Fe,Midnight 16.118214285714284 0.0 21.1744 233pM Fe,Midnight 16.710833333333333 15.3006 17.676 1160pM Fe,Midday 13.605028571428571 10.7683 16.3448 1160pM Fe,Midnight 5.7688024166666665 0.777099 16.5833 High carbon,Dark 5.256472733333333 0.765991 10.0632 High carbon,Light 3.220585923076923 0.0 7.38292 Low carbon,Dark 4.9738 4.9738 4.9738 Phloroglucinol 2.96814 2.42276 3.73172 Silicon starvation,12h 16.8654 16.8654 16.8654