condition mean min max 12pM Fe,Midday 22.6485 22.6485 22.6485 12pM Fe,Midnight 28.46185 27.8102 29.1135 58pM Fe,Midday 21.4892 21.4892 21.4892 58pM Fe,Midnight 20.121114285714285 0.0 28.4716 233pM Fe,Midnight 20.699066666666667 18.0134 23.0049 1160pM Fe,Midday 15.680185714285715 13.1236 18.3861 1160pM Fe,Midnight 16.86255 10.875 22.3767 High carbon,Dark 16.685791333333334 6.24729 28.1559 High carbon,Light 14.85426923076923 1.84816 36.5691 Low carbon,Dark 12.8589 12.8589 12.8589 Phloroglucinol 23.6999 14.0212 33.4681 Silicon starvation,12h 23.4437 23.4437 23.4437