condition mean min max 12pM Fe,Midday 50.6217 50.6217 50.6217 12pM Fe,Midnight 36.647149999999996 34.548 38.7463 58pM Fe,Midday 43.7426 43.7426 43.7426 58pM Fe,Midnight 25.09052857142857 0.0 32.3104 233pM Fe,Midnight 23.081066666666665 22.4319 23.4134 1160pM Fe,Midday 44.607257142857144 42.2961 49.0689 1160pM Fe,Midnight 17.086609166666666 7.39068 26.8219 High carbon,Dark 29.029262 9.66763 45.148 High carbon,Light 33.98727692307693 2.32825 63.9883 Low carbon,Dark 30.5255 30.5255 30.5255 Phloroglucinol 49.79363333333333 48.3811 51.4225 Silicon starvation,12h 68.2926 68.2926 68.2926