condition mean min max 12pM Fe,Midday 34.0863 34.0863 34.0863 12pM Fe,Midnight 30.8175 28.9202 32.7148 58pM Fe,Midday 32.2719 32.2719 32.2719 58pM Fe,Midnight 32.25967142857143 21.7226 66.946 233pM Fe,Midnight 18.1437 17.6875 18.8823 1160pM Fe,Midday 23.034 22.0018 24.781 1160pM Fe,Midnight 9.173355 5.51525 15.341 High carbon,Dark 34.06952866666666 7.85993 101.896 High carbon,Light 26.642023846153847 1.23282 81.249 Low carbon,Dark 17.2389 17.2389 17.2389 Phloroglucinol 27.91583333333333 23.8916 32.6748 Silicon starvation,12h 22.6085 22.6085 22.6085